Mebibyte to Kibibyte Conversion Calculator: Free Online Tool
Convert mebibytes to kibibytes with our free online data storage converter.
Mebibyte to Kibibyte Calculator
How to Use the Calculator:
- Enter the value you want to convert in the 'From' field (Mebibyte).
- The converted value in Kibibyte 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 Kibibyte
Converting Mebibyte to Kibibyte involves multiplying the value by a specific conversion factor, as shown in the formula below.
Formula:
1 Mebibyte = 1024 kibibytesExample Calculation:
Convert 10 mebibytes: 10 × 1024 = 10240 kibibytes
Common Conversion Scenarios:
- Memory Allocation: 4 MiB of RAM is 4096 KiB.
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.
What is a Mebibyte and a Kibibyte?
A mebibyte (MiB) is a unit of digital information storage equal to 220 bytes, which is exactly 1,048,576 bytes (or 10242 bytes). It uses the binary prefix 'mebi-' established by the International Electrotechnical Commission (IEC). The mebibyte was created to provide an unambiguous measurement for byte multiples based on powers of 2, distinguishing it from the megabyte (MB), which is based on the decimal prefix 'mega-' (106 or 1,000,000 bytes).
A kibibyte (KiB) is a unit of digital information storage equal to 210 bytes, which is exactly 1,024 bytes. It uses the binary prefix 'kibi-' established by the International Electrotechnical Commission (IEC) in 1998. The kibibyte was created to provide an unambiguous measurement for byte multiples based on powers of 2, distinguishing it from the kilobyte (KB), which is based on the decimal prefix 'kilo-' (103 or 1,000 bytes).
Note: The Mebibyte is part of the imperial/US customary system, primarily used in the US, UK, and Canada for everyday measurements. The Kibibyte belongs to the imperial/US customary system.
History of the Mebibyte and Kibibyte
The prefix 'mebi-' (representing 220) was defined by the IEC in 1998 alongside other binary prefixes (kibi-, gibi-, tebi-, etc.). Before this standard, the SI prefix 'mega-' (M) was ambiguously used to represent both 1,000,000 (106, as per its SI definition) and 1,048,576 (220) in computing contexts. This led to confusion, especially when comparing storage capacities advertised by manufacturers (often using decimal prefixes) and memory sizes or file sizes reported by operating systems (often using binary interpretations). The introduction of the mebibyte (MiB) aimed to resolve this ambiguity by providing a specific term for 1,048,576 bytes.
The prefix 'kibi-' (representing 210) was defined by the IEC in 1998 alongside other binary prefixes (mebi-, gibi-, tebi-, etc.). Before this standard, the SI prefix 'kilo-' (k) was ambiguously used to represent both 1000 (as per its SI definition) and 1024 in computing contexts. This led to confusion, especially when comparing storage capacities advertised by manufacturers (often using decimal prefixes) and those reported by operating systems (often using binary interpretations). The introduction of the kibibyte (KiB) aimed to resolve this ambiguity by providing a specific term for 1,024 bytes.
Common Uses for mebibytes and kibibytes
Explore the typical applications for both Mebibyte (imperial/US) and Kibibyte (imperial/US) to understand their common contexts.
Common Uses for mebibytes
Mebibytes are used in contexts where precision based on powers of 2 is necessary:
- Precisely measuring computer memory (RAM) capacity, which is typically manufactured in powers-of-2 sizes.
- Reporting file sizes and disk space usage by operating systems (like Windows, macOS, Linux distributions) and file systems that adhere to IEC standards.
- Software development, technical documentation, and virtualization where exact binary multiples are crucial for calculations, specifications, or resource allocation.
- Cache sizes in CPUs and other hardware components.
Common Uses for kibibytes
Kibibytes are used in contexts where precision based on powers of 2 is necessary:
- Measuring Random Access Memory (RAM) capacity, which is typically manufactured in powers-of-2 sizes.
- Reporting file sizes and disk space usage by some operating systems (like Microsoft Windows) and file systems.
- Software development and technical documentation where exact binary multiples are crucial for calculations or specifications.
- Network file transfer protocols where block sizes might be defined in binary terms.
- Ensuring accuracy when comparing storage defined using binary prefixes (KiB, MiB, GiB) versus decimal prefixes (KB, MB, GB).
Frequently Asked Questions
Questions About Mebibyte (MiB)
How many bytes are in a mebibyte (MiB)?
There are exactly 220 bytes in 1 mebibyte (MiB). This equals 1,048,576 bytes.
How many kibibytes (KiB) are in a mebibyte (MiB)?
There are 1,024 kibibytes (KiB) in 1 mebibyte (MiB). This follows the binary prefix system where 1 MiB = 220 bytes and 1 KiB = 210 bytes, and 220 / 210 = 210 = 1,024.
What is the difference between a mebibyte (MiB) and a megabyte (MB)?
A mebibyte (MiB) represents 220 bytes (1,048,576 bytes), using the IEC binary prefix 'mebi-'. A megabyte (MB) typically represents 106 bytes (1,000,000 bytes), using the SI decimal prefix 'mega-'. A mebibyte is approximately 4.86% larger than a megabyte (1 MiB ≈ 1.0486 MB). Use MiB for precision in binary contexts (like RAM, OS reporting) and MB for decimal contexts (like hard drive marketing, network speeds in some cases) or when the specific definition is clarified.
What is the difference between a mebibyte (MiB) and a mebibit (Mib)?
A mebibyte (MiB) measures information in bytes, while a mebibit (Mib) measures information in bits. Assuming the standard 1 byte = 8 bits, 1 mebibyte (MiB) is equal to 8 mebibits (Mib). Both use the binary prefix 'mebi-' (220).
Why is MiB used less often than MB in marketing?
Marketing materials (like hard drive capacities) often use the decimal prefix (MB, GB) because it results in a larger-looking number for capacity compared to the binary prefix (MiB, GiB) for the same amount of physical storage (e.g., 1,000,000,000 bytes is marketed as 1 GB, while an OS might report it as approximately 931 MiB, not GiB, because 1 GB is closer to 953.67 MiB, but OS often report GiB as GB). This discrepancy arises because 1 MB = 106 bytes, whereas 1 MiB = 220 bytes. Using decimal units allows manufacturers to advertise higher numbers.
About Kibibyte (KiB)
How many bytes are in a kibibyte (KiB)?
There are exactly 210 bytes in 1 kibibyte (KiB). This equals 1,024 bytes.
How many bits are in a kibibyte (KiB)?
Assuming the standard of 8 bits per byte, 1 kibibyte (KiB) contains 1,024 bytes * 8 bits/byte = 8,192 bits.
What is the difference between a kibibyte (KiB) and a kilobyte (KB)?
A kibibyte (KiB) represents 210 bytes (1,024 bytes), using the IEC binary prefix 'kibi-'. A kilobyte (KB) represents 103 bytes (1,000 bytes), using the SI decimal prefix 'kilo-'. A kibibyte is 2.4% larger than a kilobyte (1 KiB = 1.024 KB). Historically, KB was often used informally to mean 1024 bytes, which the KiB unit now clarifies.
How many kibibytes (KiB) are in a mebibyte (MiB)?
There are 1,024 kibibytes (KiB) in 1 mebibyte (MiB). This follows the binary prefix system where each subsequent prefix is 1024 times the previous one (1 MiB = 1024 KiB).
Why use kibibyte (KiB) instead of kilobyte (KB)?
Using kibibyte (KiB) provides clarity and removes ambiguity. When you see KiB, you know it specifically means 1,024 bytes. Kilobyte (KB) should mean 1,000 bytes according to SI standards, but its historical misuse for 1,024 bytes created confusion. KiB ensures precision, especially in technical fields like computing and data storage.
Conversion Table: Mebibyte to Kibibyte
| Mebibyte (MiB) | Kibibyte (KiB) |
|---|---|
| 1 | 1,024 |
| 5 | 5,120 |
| 10 | 10,240 |
| 25 | 25,600 |
| 50 | 51,200 |
| 100 | 102,400 |
| 500 | 512,000 |
| 1,000 | 1,024,000 |