Mebibyte to Gibibyte Converter

Convert mebibytes to gibibytes with our free online data storage converter.

Quick Answer

1 Mebibyte = 0.000977 gibibytes

Formula: Mebibyte × conversion factor = Gibibyte

Use the calculator below for instant, accurate conversions.

Our Accuracy Guarantee

All conversion formulas on UnitsConverter.io have been verified against NIST (National Institute of Standards and Technology) guidelines and international SI standards. Our calculations are accurate to 10 decimal places for standard conversions and use arbitrary precision arithmetic for astronomical units.

Last verified: February 2026|Reviewed by: Sam Mathew, Software Engineer

From:

To:

How to Use the Mebibyte to Gibibyte Calculator:

Enter the value you want to convert in the 'From' field (Mebibyte).
The converted value in Gibibyte will appear automatically in the 'To' field.
Use the dropdown menus to select different units within the Data Storage category.
Click the swap button (⇌) to reverse the conversion direction.

How to Convert Mebibyte to Gibibyte: Step-by-Step Guide

Converting Mebibyte to Gibibyte involves multiplying the value by a specific conversion factor, as shown in the formula below.

Formula:

1 Mebibyte = 0.000976563 gibibytes

Example Calculation:

Convert 10 mebibytes: 10 × 0.000976563 = 0.00976563 gibibytes

Disclaimer: For Reference Only

These conversion results are provided for informational purposes only. While we strive for accuracy, we make no guarantees regarding the precision of these results, especially for conversions involving extremely large or small numbers which may be subject to the inherent limitations of standard computer floating-point arithmetic.

Not for professional use. Results should be verified before use in any critical application. View our Terms of Service for more information.

Need to convert to other data storage units?

View all Data Storage conversions →

📊 Data Storage Table

Print-friendly conversion reference

📋 Unit Symbols

Copy MiB & GiB symbols

What is a Mebibyte and a Gibibyte?

A mebibyte (MiB) is a unit of digital information storage equal to 2²⁰ bytes (one mebibyte = 1,048,576 bytes). It uses the standard IEC binary prefix 'mebi-'. One mebibyte is equivalent to 1,024 kibibytes or 8,388,608 bits.

Precise definitions:

1 mebibyte (MiB) = 1,048,576 bytes (exactly 2²⁰)
1 MiB = 1,024 kibibytes (KiB)
1 MiB = 0.95367431640625 megabytes (MB)
1 MiB = 8,388,608 bits (8 mebibits)

Relationship to decimal units:

1 mebibyte (MiB) ≈ 0.9537 megabytes (MB)
1 megabyte (MB) = 1,000,000 bytes = 0.9537 MiB (4.9% larger)
1 MiB = 1,048,576 bytes = 1.0486 MB (4.9% larger than MB)

Mebibyte (MiB) vs. Megabyte (MB): Critical Distinction

This creates the major storage capacity confusion:

Mebibyte (MiB) — Binary prefix:

Exactly 1,048,576 bytes (2²⁰)
Based on binary powers (powers of 2)
Used by operating systems, memory specifications, file systems
Standard for RAM, technical calculations

Megabyte (MB) — Decimal prefix:

Exactly 1,000,000 bytes (10⁶)
Based on SI decimal (powers of 10)
Used by storage manufacturers, consumer marketing
Standard for file sizes, internet data

Why the confusion matters:

RAM specifications: Always binary (256 MiB RAM = 268.44 MB)
File sizes: May show differently depending on context
Storage marketing: 1 GB drive = ~953.7 MiB in binary calculations
Technical precision: MiB ensures exact binary calculations

Mebibyte (MiB) vs. Mebibit (Mib): Don't Confuse Them!

Another technical distinction:

Mebibyte (MiB):

Measures storage capacity (data at rest)
1 MiB = 1,048,576 bytes
Used for: memory, file systems, storage

Mebibit (Mib or Mibit):

Measures data transfer (data in motion)
1 Mib = 1,048,576 bits
Used for: technical data rates
1 mebibyte = 8 mebibits (since 1 byte = 8 bits)

Real-world example:

Memory module: 512 MiB RAM
Data transfer: 100 Mib/s technical specification

A gibibyte (symbol: GiB) is a unit of digital information storage equal to 2³⁰ bytes, which is exactly 1,073,741,824 bytes.

Binary Prefix System

The prefix "gibi-" comes from "giga binary" and represents 2³⁰ (1,024³):

Mathematical Expression:

1 GiB = 2³⁰ bytes
     = 1,024³ bytes
     = 1,024 × 1,024 × 1,024 bytes
     = 1,073,741,824 bytes

Binary Progression:

1 byte = 8 bits
1 KiB (kibibyte) = 2¹⁰ bytes = 1,024 bytes
1 MiB (mebibyte) = 2²⁰ bytes = 1,024 KiB = 1,048,576 bytes
1 GiB (gibibyte) = 2³⁰ bytes = 1,024 MiB = 1,073,741,824 bytes
1 TiB (tebibyte) = 2⁴⁰ bytes = 1,024 GiB = 1,099,511,627,776 bytes

Why 1,024 (Powers of 2)?

Computers use binary (base-2) internally:

Memory addresses organized in powers of 2 (2⁰, 2¹, 2², ..., 2³⁰, ...)
2¹⁰ = 1,024 ≈ 1,000 (close to decimal 1,000, leading to historical confusion)
RAM chips manufactured in binary capacities: 1 GiB, 2 GiB, 4 GiB, 8 GiB, 16 GiB, 32 GiB

Result: Binary prefixes (KiB, MiB, GiB, TiB) match how computers actually organize memory.

GiB vs. GB (The Critical Difference)

Gibibyte (GiB) – Binary (IEC standard):

1 GiB = 2³⁰ bytes = 1,073,741,824 bytes
Used for: RAM, Windows file sizes, Linux file systems, technical specs

Gigabyte (GB) – Decimal (SI standard):

1 GB = 10⁹ bytes = 1,000,000,000 bytes
Used for: Hard drive marketing, network speeds, macOS (since 2009)

Conversion:

1 GiB = 1.073741824 GB (approximately 1.074 GB)
1 GB = 0.931322575 GiB (approximately 0.931 GiB)
Difference: 7.37% (GiB is larger)

Example:

"500 GB" hard drive (decimal) = 500,000,000,000 bytes
Windows shows: 500 billion ÷ 1,073,741,824 = 465.66 GiB
This is NOT a missing ~35 GB, just different units!

Note: The Mebibyte is part of the imperial/US customary system, primarily used in the US, UK, and Canada for everyday measurements. The Gibibyte belongs to the imperial/US customary system.

History of the Mebibyte and Gibibyte

The Binary Prefix Revolution (1998)

IEC's solution to decades of confusion:

1998: IEC introduces binary prefixes (IEC 60027-2 standard):

Kibibyte (KiB) = 1,024 bytes (2¹⁰)
Mebibyte (MiB) = 1,048,576 bytes (2²⁰)
Gibibyte (GiB) = 1,073,741,824 bytes (2³⁰)
Tebibyte (TiB) = 1,099,511,627,776 bytes (2⁴⁰)
Pebibyte (PiB) = 1,125,899,906,842,624 bytes (2⁵⁰)
Exbibyte (EiB) = 1,152,921,504,606,846,976 bytes (2⁶⁰)

The 'mebi-' prefix:

"Mebi-" from "mega binary"
Represents 2²⁰ (1,048,576)
Provides unambiguous binary measurement

Before IEC: The Megabyte Confusion Era (1960s-1998)

Decades of ambiguity:

1960s-1980s: Binary becomes computing standard:

Computer memory uses binary addressing
1,048,576 becomes the practical "mega" for computers
"Megabyte" informally means 1,048,576 bytes

1980s-1990s: Decimal vs. binary conflict:

Manufacturers: Use decimal MB (1,000,000 bytes) for marketing
Engineers: Use binary MB (1,048,576 bytes) for specifications
Consumer confusion: Same storage showed different sizes

The problem compounds:

Memory: Always binary (powers of 2)
Storage: Initially decimal, later creates confusion
File systems: Often use binary units
No standard terminology: "Megabyte" meant different things

Modern Era (2000s-Present)

IEC standards gain adoption:

2000s: Technical adoption:

Linux distributions: Early adopters of MiB notation
Technical documentation: Increasing use of binary prefixes
Memory specifications: Consistently use MiB

2010s: Mixed adoption:

Operating systems: Windows shows "MB" but calculates in MiB for memory
macOS: Shows memory in GB (decimal) but calculations are binary
Technical fields: MiB widely used in specifications

2020s: Precision matters:

RAM specifications: Still primarily MiB-based
Technical standards: IEC binary prefixes standard
Education: Teaching binary vs. decimal distinction

The gibibyte's creation addresses one of computing's most persistent measurement confusions.

Early Computing: Informal Binary Usage (1950s-1980s)

The Problem: Early computer scientists needed convenient names for memory sizes based on powers of 2.

Informal Convention (1950s-1970s):

"kilobyte" (KB) informally meant 2¹⁰ = 1,024 bytes (not 1,000)
Seemed reasonable: 1,024 ≈ 1,000, close enough for convenience
No official standard, just common practice

Why This Worked Initially:

Memory sizes were small (kilobytes, megabytes)
2.4% error (1,024 vs. 1,000) seemed negligible
No significant commercial ambiguity

Growing Confusion (1980s-1990s)

Megabyte Era: As storage reached megabytes (1980s), ambiguity grew:

Hard drive manufacturers: Marketed using decimal MB (1 MB = 1,000,000 bytes) for larger-sounding capacities
Operating systems (Windows, DOS): Used binary MB (1 MB = 1,048,576 bytes) internally
Consumers noticed: "20 MB" drive showed as ~19 MB in system

Example:

100 MB drive (manufacturer decimal) = 100,000,000 bytes
Windows (binary): 100,000,000 ÷ 1,048,576 = 95.37 MB displayed
Missing 4.63 MB? No, just different definitions!

Gigabyte Confusion Peak (1990s-2000s)

The Crisis: By the 1990s-2000s, as gigabyte storage became standard:

Manufacturers: 1 GB = 1,000,000,000 bytes (decimal, larger marketing number)
Operating Systems: 1 GB = 1,073,741,824 bytes (binary, how systems work)
Consumers: Increasingly confused and frustrated

Real-World Impact:

"500 GB" hard drive shows as "465 GB" in Windows
(~35 GB "missing" = 500 billion bytes ÷ 1,073,741,824)
Lawsuits filed against manufacturers for "false advertising"
Technical journalists debated which definition was "correct"

IEC Binary Prefixes (1998)

Solution: International Electrotechnical Commission (IEC)

IEC 60027-2 Amendment 2 (December 1998): Introduced binary prefixes to eliminate ambiguity:

Binary Prefixes (IEC standard):

kibi- (Ki) = 2¹⁰ = 1,024
mebi- (Mi) = 2²⁰ = 1,048,576
gibi- (Gi) = 2³⁰ = 1,073,741,824
tebi- (Ti) = 2⁴⁰ = 1,099,511,627,776
pebi- (Pi) = 2⁵⁰ = 1,125,899,906,842,624
exbi- (Ei) = 2⁶⁰ = 1,152,921,504,606,846,976

Naming Logic:

kibi = kilo + binary
mebi = mega + binary
gibi = giga + binary
tebi = tera + binary

Adoption and Standardization (2000s-Present)

Standards Bodies Endorsements:

IEEE (Institute of Electrical and Electronics Engineers): Adopted 2005
ISO/IEC 80000-13:2008: International standard for quantities and units
NIST (US National Institute of Standards and Technology): Endorsed 2008

Operating System Adoption:

Linux:

Many distributions use GiB for file sizes and memory (free -h, df -h)
GNOME, KDE desktop environments display GiB
Gradually adopted from early 2000s onward

Windows:

Internally uses binary gigabytes (GiB) but displays as "GB"
Has not adopted GiB notation in user interface
Shows binary values: "500 GB drive" → displayed "465 GB" (actually 465 GiB)

macOS:

Mac OS X 10.5 and earlier: Binary gigabytes (like Windows)
Mac OS X 10.6 Snow Leopard (2009): Switched to decimal GB (10⁹ bytes)
"500 GB drive" now shows as "500 GB" in macOS (decimal, matching marketing)

Hard Drive Industry:

Continues decimal GB (10⁹) for marketing (larger numbers)
Now explicitly states on packaging: "1 GB = 1,000,000,000 bytes"

RAM Industry:

Exclusively binary: 4 GiB, 8 GiB, 16 GiB, 32 GiB, 64 GiB modules
RAM manufacturers always used binary capacities (impossible to make 10 GiB RAM chips)

Current Status (2020s)

Where GiB is Standard:

RAM specifications (DDR4, DDR5 modules)
Technical documentation (JEDEC standards)
Scientific computing and data centers
Many Linux distributions
Programming and software development

Where GB (Ambiguous) Persists:

Consumer hard drives/SSD marketing (decimal GB)
Windows UI (binary values, but labeled "GB")
Network speeds (decimal, bits per second)
Cloud storage providers (varies: Google Drive uses decimal GB, others vary)

The Confusion Continues: Despite IEC standardization, consumer confusion remains. Many users don't know GiB exists or understand GiB vs. GB distinction.

Common Uses and Applications: mebibytes vs gibibytes

Explore the typical applications for both Mebibyte (imperial/US) and Gibibyte (imperial/US) to understand their common contexts.

Common Uses for mebibytes

Memory Capacity Specifications

RAM and system memory measurements:

Computer RAM:

Laptops: 8-32 GiB (8,192-32,768 MiB)
Desktops: 16-128 GiB (16,384-131,072 MiB)
Servers: 64-1,024 GiB (65,536-1,048,576 MiB)

Why binary for memory:

Memory addressing: Binary systems use powers of 2
Physical chips: Manufactured in binary capacities
Performance optimization: Binary sizes enable efficient access

Operating System Reporting

File and memory size displays:

Windows File Properties:

Small files: May show in KB (decimal) or KiB (binary)
Large files: Shows in MB (decimal) but calculations consider MiB
Drive capacity: Shows total in GB but free space in GiB context

Linux File Systems:

df command: Shows in MiB/GiB for precision
ls command: Uses binary calculations for accuracy
Disk usage: MiB precision for system administration

Technical Documentation

Precision in specifications:

Hardware Manuals:

Memory specs: Always in MiB for accuracy
Cache sizes: CPU L3 cache in MiB
Buffer sizes: Network and I/O buffers in KiB/MiB

Software Documentation:

Memory requirements: Applications specify in MiB
Database sizing: Page sizes in KiB/MiB
Virtual machine configs: Memory allocation in MiB

Programming and Development

Binary calculations in code:

Memory Management:

malloc alignment: Often MiB boundaries
Memory pools: MiB-sized chunks
Garbage collection: MiB threshold calculations

System Programming:

Page table sizes: MiB calculations
Shared memory: MiB alignment requirements
Kernel memory: MiB-scale allocations

When to Use gibibytes

RAM (Memory) Specifications

Primary Use Case: RAM is ALWAYS measured in binary (GiB):

Consumer RAM:

Laptops: 4 GiB, 8 GiB, 16 GiB, 32 GiB
Desktops: 8 GiB, 16 GiB, 32 GiB, 64 GiB, 128 GiB
Workstations: 64 GiB, 128 GiB, 256 GiB, 512 GiB
Servers: 256 GiB, 512 GiB, 1 TiB, 2 TiB, 4 TiB

Why GiB (not GB): RAM addressing is binary, making binary capacities the only physically possible option.

Operating System File Management

Windows:

File sizes displayed in "GB" (actually GiB binary)
Memory usage: Task Manager shows GiB as "GB"
Disk space: Binary calculation, labeled "GB"

Linux:

df -h, free -h: Often display GiB explicitly
File managers (Nautilus, Dolphin): GiB for file sizes
System monitors: GiB for RAM and swap

Precision Matters:

System administrators use GiB for accurate capacity planning
File size reporting needs binary precision for checksums and verification

Software Development and Databases

Memory Limits:

32-bit systems: Maximum 4 GiB RAM (2³² bytes, 4,294,967,296)
64-bit systems: Theoretical max 16 EiB (2⁶⁴ bytes, practically unlimited)

Database Configuration:

Buffer pool size: 8 GiB, 16 GiB, 32 GiB (MySQL, PostgreSQL)
Cache allocations: Binary sizes for efficiency

Programming:

Memory allocation APIs: Specify bytes (often in GiB multiples)
Performance optimization: Understanding binary vs. decimal for memory profiling

Virtualization and Containers

Virtual Machine Configuration:

Hypervisors (VMware, VirtualBox, KVM): Memory in GiB
Guest OS allocation: 2 GiB, 4 GiB, 8 GiB per VM
Resource pools: Total memory in GiB across VMs

Docker/Kubernetes:

Container memory limits: Specified in GiB or MiB
Example: memory: 2Gi in Kubernetes (2 GiB)

Data Center and Enterprise Storage

Capacity Planning:

Server RAM upgrades: Per-socket GiB calculations
Storage arrays: TiB (binary) for actual usable capacity after RAID/formatting
Backup sizing: Binary measurements for accurate space requirements

Network Infrastructure:

SAN (Storage Area Network): Binary capacity reporting
NAS (Network Attached Storage): Often binary (TiB) for actual space

Additional Unit Information

About Mebibyte (MiB)

How many bytes are in a mebibyte (MiB)?

There are exactly 1,048,576 bytes in 1 mebibyte (MiB). This is the definition established by the International Electrotechnical Commission (IEC) in 1998. The mebibyte uses the binary prefix "mebi-" which represents 2²⁰ (1,048,576), as opposed to the decimal megabyte (MB) which equals 1,000,000 bytes.

What is the difference between MiB and MB?

MiB (mebibyte) equals exactly 1,048,576 bytes (2²⁰) using the IEC binary prefix system. MB (megabyte) equals exactly 1,000,000 bytes (10⁶) using the SI decimal prefix system. A mebibyte is 4.9% larger than a megabyte (1 MiB = 1.0486 MB). The IEC introduced MiB in 1998 to eliminate confusion when "megabyte" was used ambiguously for both decimal and binary meanings.

How many kibibytes are in a mebibyte?

There are exactly 1,024 kibibytes (KiB) in 1 mebibyte (MiB). This follows the IEC binary prefix system where each larger unit is 1,024 times the previous unit. The relationship is: 1 MiB = 1,024 KiB = 1,048,576 bytes.

When should I use MiB instead of MB?

Use MiB when precision matters in technical contexts:

Memory specifications (RAM, cache sizes)
File system calculations (allocation units, block sizes)
Technical documentation requiring exact binary calculations
Operating system internals and system programming

Use MB for general consumer contexts:

File sizes for documents, images, downloads
Storage marketing and capacity advertising
Network speeds and data plans
General user interfaces

Why does my RAM show different sizes in different programs?

This happens because RAM is fundamentally binary (powers of 2), but some programs display in decimal terms:

Hardware level: RAM uses binary addressing (MiB)
Windows: Shows "GB" but calculates in GiB (binary)
macOS: Shows decimal GB but calculations are binary
Technical tools: Show precise MiB measurements

The same 8 GiB RAM module will show as approximately 8.59 GB in decimal calculations, but the hardware operates in binary MiB.

How does MiB relate to computer memory?

Computer memory is fundamentally binary-organized, so MiB is the natural unit:

Memory addressing: CPUs use binary addresses (powers of 2)
Physical chips: Manufactured in binary capacities
Page sizes: Virtual memory pages are 4 KiB or 64 KiB
Cache systems: CPU caches sized in KiB/MiB
Memory management: OS allocates in MiB chunks

Even when consumer products advertise "GB" of RAM, the underlying hardware uses binary MiB calculations.

Is MiB used in consumer products?

MiB is primarily used in technical and professional contexts, not consumer marketing. Consumers typically see:

MB (decimal) for file sizes and small storage
GB (decimal) for storage capacity and RAM
TB (decimal) for very large storage

However, MiB appears in technical specifications:

Detailed memory analysis tools
System information displays
Technical documentation
Professional software specifications

What replaced MiB for larger measurements?

For larger measurements, mebibytes were replaced by:

Gibibytes (GiB): For larger memory and storage (1,024 MiB = 1 GiB)
Tebibytes (TiB): For very large systems (1,024 GiB = 1 TiB)
Pebibytes (PiB): For data centers (1,024 TiB = 1 PiB)

However, consumer marketing uses decimal GB/TB, while technical specifications use binary GiB/TiB.

How do mebibytes relate to bits?

1 mebibyte (MiB) = 8,388,608 bits because each byte contains 8 bits. This relationship is crucial for:

Memory bandwidth calculations: Understanding data transfer rates
Technical specifications: Converting between bytes and bits
Digital communication: Understanding data flow in binary systems

Example: A memory bus running at 1 MiB/s can transfer 8.39 Mib/s (mebibits per second).

About Gibibyte (GiB)

How many bytes are in a gibibyte?

Exactly 2³⁰ bytes = 1,073,741,824 bytes

Breakdown:

1 GiB = 1,024 MiB (mebibytes)
1 MiB = 1,024 KiB (kibibytes)
1 KiB = 1,024 bytes
1 GiB = 1,024 × 1,024 × 1,024 bytes = 1,073,741,824 bytes

How many mebibytes (MiB) are in a gibibyte (GiB)?

Exactly 1,024 MiB in 1 GiB

Calculation:

1 GiB = 2³⁰ bytes
1 MiB = 2²⁰ bytes
2³⁰ ÷ 2²⁰ = 2¹⁰ = 1,024

Binary progression:

1 KiB = 1,024 bytes
1 MiB = 1,024 KiB
1 GiB = 1,024 MiB
1 TiB = 1,024 GiB

What is the difference between a gibibyte (GiB) and a gigabyte (GB)?

Gibibyte (GiB) – Binary (IEC standard):

1 GiB = 2³⁰ bytes = 1,073,741,824 bytes
Used for RAM, Windows file sizes, technical specs

Gigabyte (GB) – Decimal (SI standard):

1 GB = 10⁹ bytes = 1,000,000,000 bytes
Used for hard drive marketing, network speeds

Difference:

1 GiB ≈ 1.074 GB (GiB is 7.37% larger)
1 GB ≈ 0.931 GiB

When to use which:

GiB: RAM, Windows/Linux file systems, VM memory, technical precision
GB: Hard drive/SSD marketing, macOS (post-2009), network speeds

Why does my "1 TB" hard drive show as 931 GB in Windows?

This is normal and NOT a defect!

Explanation:

Manufacturer advertises: 1 TB (decimal) = 1,000,000,000,000 bytes
Windows calculates: 1 trillion bytes ÷ 1,073,741,824 (GiB) = 931.32 GiB
Windows displays: "931 GB" (mislabeled; actually 931 GiB)

You're not missing storage:

You have exactly 1 trillion bytes as advertised
Windows uses binary (GiB) but labels it "GB"
The ~7% "difference" is purely definitional (GiB vs. GB)

Additional reductions:

File system overhead (formatting): 1-3% (NTFS, ext4, APFS)
Final usable space: ~900-920 GiB typically

Why is RAM always in powers of 2 (4 GiB, 8 GiB, 16 GiB)?

Binary addressing makes non-binary RAM impossible:

Technical Reason:

RAM uses binary address lines: 2⁰, 2¹, 2², ..., 2²⁹, 2³⁰
Each address line doubles capacity
8 GiB RAM: Uses 33 address lines (2³³ bytes, 8 × 2³⁰)
16 GiB RAM: Uses 34 address lines (2³⁴ bytes, 16 × 2³⁰)

Cannot manufacture "10 GB" RAM:

10 billion bytes is not a power of 2
Memory controllers can't address non-binary capacities
Physically impossible with current technology

Result: All RAM comes in binary sizes (1, 2, 4, 8, 16, 32, 64 GiB), never decimal (10, 20, 50 GB).

Should I use GiB or GB when talking about RAM?

Use GiB (gibibyte) for RAM – it's technically correct:

RAM is inherently binary:

16 GiB RAM = 17,179,869,184 bytes (exactly)
Saying "16 GB" is technically ambiguous (16 billion bytes? No.)
GiB is precise and unambiguous

However, in practice:

Consumer market says "16 GB RAM" (colloquially accepted, though imprecise)
Technical documentation: Should use "16 GiB"
RAM manufacturers: Often use "16 GB" in marketing, mean 16 GiB

Best practice:

Technical contexts: Use GiB (e.g., "Server with 128 GiB RAM")
Casual conversation: "GB" is understood to mean GiB for RAM (context makes it clear)

Does macOS use GiB or GB?

macOS uses decimal GB (10⁹ bytes) since Mac OS X 10.6 Snow Leopard (2009):

Before 10.6: Binary gigabytes (like Windows)

"500 GB" drive showed as "465 GB" (binary, actually GiB)

10.6 Snow Leopard and later: Decimal gigabytes (10⁹)

"500 GB" drive now shows as "500 GB" (decimal, matches marketing)

Result:

macOS file sizes use decimal GB (1 GB = 1,000,000,000 bytes)
Matches hard drive marketing claims
Reduces consumer confusion (but differs from Windows)

Windows vs. macOS same file:

1,073,741,824 bytes (1 GiB exactly)
Windows: Shows "1.00 GB" (actually 1 GiB, mislabeled)
macOS: Shows "1.07 GB" (decimal GB, accurate)

How do I convert between GiB and TiB?

1 TiB (tebibyte) = 1,024 GiB

Formula:

TiB = GiB ÷ 1,024
GiB = TiB × 1,024

Examples:

512 GiB = 512 ÷ 1,024 = 0.5 TiB
1,024 GiB = 1 TiB (exactly)
2,048 GiB = 2 TiB
0.25 TiB = 0.25 × 1,024 = 256 GiB

Binary Progression:

1 KiB = 1,024 bytes
1 MiB = 1,024 KiB
1 GiB = 1,024 MiB
1 TiB = 1,024 GiB
1 PiB = 1,024 TiB

Why do hard drive manufacturers use decimal GB instead of binary GiB?

Marketing and Historical Reasons:

Larger Numbers Sell Better:

1 TB (decimal) = 1,000,000,000,000 bytes
1 TiB (binary) = 1,099,511,627,776 bytes
Decimal TB is ~9% smaller, but consumers see "1 TB" as bigger than "931 GiB"

SI Convention:

Gigabyte (GB) with decimal definition follows SI prefix system (giga = 10⁹)
Scientifically consistent with kilograms, kilometers, gigawatts

Industry Standardization:

Hard drive industry standardized on decimal GB in the 1980s-1990s
Changing now would be disruptive and expensive

Legal Requirement:

Manufacturers must now explicitly state: "1 GB = 1,000,000,000 bytes" on packaging
This resolves false advertising concerns

Conversion Table: Mebibyte to Gibibyte

Mebibyte (MiB)	Gibibyte (GiB)
0.5	0.001
1	0.001
1.5	0.002
2	0.002
5	0.005
10	0.01
25	0.024
50	0.049
100	0.098
250	0.244
500	0.488
1,000	0.977

How do I convert Mebibyte to Gibibyte?

To convert Mebibyte to Gibibyte, enter the value in Mebibyte in the calculator above. The conversion will happen automatically. Use our free online converter for instant and accurate results. You can also visit our data storage converter page to convert between other units in this category.

Learn more →

What is the conversion factor from Mebibyte to Gibibyte?

The conversion factor depends on the specific relationship between Mebibyte and Gibibyte. You can find the exact conversion formula and factor on this page. Our calculator handles all calculations automatically. See the conversion table above for common values.

Can I convert Gibibyte back to Mebibyte?

Yes! You can easily convert Gibibyte back to Mebibyte by using the swap button (⇌) in the calculator above, or by visiting our Gibibyte to Mebibyte converter page. You can also explore other data storage conversions on our category page.

Learn more →

What are common uses for Mebibyte and Gibibyte?

Mebibyte and Gibibyte are both standard units used in data storage measurements. They are commonly used in various applications including engineering, construction, cooking, and scientific research. Browse our data storage converter for more conversion options.

For more data storage conversion questions, visit our FAQ page or explore our conversion guides.

Helpful Conversion Guides

Learn more about unit conversion with our comprehensive guides:

All Data Storage Conversions

Bit to Byte Bit to Kilobit Bit to Kilobyte Bit to Megabit Bit to Megabyte Bit to Gigabit Bit to Gigabyte Bit to Terabit Bit to Terabyte Bit to Petabit Bit to Petabyte Bit to Exabit Bit to Exabyte Bit to Kibibit Bit to Kibibyte Bit to Mebibit Bit to Mebibyte Bit to Gibibit Bit to Gibibyte Bit to Tebibit Bit to Tebibyte Bit to Pebibit Bit to Pebibyte Bit to Exbibit Bit to Exbibyte Byte to Bit Byte to Kilobit Byte to Kilobyte Byte to Megabit Byte to Megabyte Byte to Gigabit Byte to Gigabyte Byte to Terabit Byte to Terabyte Byte to Petabit Byte to Petabyte Byte to Exabit Byte to Exabyte Byte to Kibibit Byte to Kibibyte Byte to Mebibit Byte to Mebibyte Byte to Gibibit Byte to Gibibyte Byte to Tebibit Byte to Tebibyte Byte to Pebibit Byte to Pebibyte Byte to Exbibit Byte to Exbibyte Kilobit to Bit Kilobit to Byte Kilobit to Kilobyte Kilobit to Megabit Kilobit to Megabyte Kilobit to Gigabit Kilobit to Gigabyte Kilobit to Terabit Kilobit to Terabyte Kilobit to Petabit Kilobit to Petabyte Kilobit to Exabit Kilobit to Exabyte Kilobit to Kibibit Kilobit to Kibibyte Kilobit to Mebibit Kilobit to Mebibyte Kilobit to Gibibit Kilobit to Gibibyte Kilobit to Tebibit Kilobit to Tebibyte Kilobit to Pebibit Kilobit to Pebibyte Kilobit to Exbibit Kilobit to Exbibyte Kilobyte to Bit Kilobyte to Byte Kilobyte to Kilobit Kilobyte to Megabit Kilobyte to Megabyte Kilobyte to Gigabit Kilobyte to Gigabyte Kilobyte to Terabit Kilobyte to Terabyte Kilobyte to Petabit Kilobyte to Petabyte Kilobyte to Exabit Kilobyte to Exabyte Kilobyte to Kibibit Kilobyte to Kibibyte Kilobyte to Mebibit Kilobyte to Mebibyte Kilobyte to Gibibit Kilobyte to Gibibyte Kilobyte to Tebibit Kilobyte to Tebibyte Kilobyte to Pebibit Kilobyte to Pebibyte Kilobyte to Exbibit Kilobyte to Exbibyte Megabit to Bit Megabit to Byte Megabit to Kilobit Megabit to Kilobyte Megabit to Megabyte Megabit to Gigabit Megabit to Gigabyte Megabit to Terabit Megabit to Terabyte Megabit to Petabit Megabit to Petabyte Megabit to Exabit Megabit to Exabyte Megabit to Kibibit Megabit to Kibibyte Megabit to Mebibit Megabit to Mebibyte Megabit to Gibibit Megabit to Gibibyte Megabit to Tebibit

Data Storage Converter

Convert between all data storage units: