Kilobyte to Mebibyte Converter
Convert kilobytes to mebibytes with our free online data storage converter.
Quick Answer
1 Kilobyte = 0.000954 mebibytes
Formula: Kilobyte × conversion factor = Mebibyte
Use the calculator below for instant, accurate conversions.
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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.
Kilobyte to Mebibyte Calculator
How to Use the Kilobyte to Mebibyte Calculator:
- Enter the value you want to convert in the 'From' field (Kilobyte).
- The converted value in Mebibyte 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 Kilobyte to Mebibyte: Step-by-Step Guide
Converting Kilobyte to Mebibyte involves multiplying the value by a specific conversion factor, as shown in the formula below.
Formula:
1 Kilobyte = 0.000953674 mebibytesExample Calculation:
Convert 10 kilobytes: 10 × 0.000953674 = 0.00953674 mebibytes
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.
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View all Data Storage conversions →What is a Kilobyte and a Mebibyte?
A kilobyte (KB) is a multiple of the unit byte for digital information. The International System of Units (SI) defines the prefix kilo as 1000 (103); therefore, one kilobyte is 1000 bytes.
However, the term is also widely used in computing contexts to represent 1024 (210) bytes. This usage technically refers to a kibibyte (KiB), a unit defined by the International Electrotechnical Commission (IEC) specifically for binary multiples.
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).
Note: The Kilobyte is part of the imperial/US customary system, primarily used in the US, UK, and Canada for everyday measurements. The Mebibyte belongs to the imperial/US customary system.
History of the Kilobyte and Mebibyte
Early computer memory was often organized in powers of two, making 1024 a convenient multiplier for calculations. This led to the common but conflicting use of "kilobyte" to mean 1024 bytes. To resolve this ambiguity, the International Electrotechnical Commission (IEC) introduced binary prefixes (kibi-, mebi-, gibi-, etc.) in 1998. This standard designated KiB specifically for 1024 bytes and reaffirmed KB strictly for 1000 bytes. Despite the standard, adoption varies, and the dual usage sometimes causes confusion, particularly in marketing versus operating system reporting.
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.
Common Uses and Applications: kilobytes vs mebibytes
Explore the typical applications for both Kilobyte (imperial/US) and Mebibyte (imperial/US) to understand their common contexts.
Common Uses for kilobytes
The kilobyte (KB), representing 1000 bytes, is commonly used for:
- Measuring the size of small files (e.g., plain text documents, configuration files, simple icons).
- Quantifying cache sizes in processors (though sometimes KiB might be implied).
- Specifying data transfer rates in kilobytes per second (KB/s) in some contexts (though kilobits per second, kbps, is more common for network speeds).
- Used by some storage device manufacturers (like hard drives, SSDs, USB drives) to define capacity based on the decimal system.
The informal use representing 1024 bytes (correctly KiB) appeared frequently in:
- Quantifying early computer memory capacity.
- Reporting file sizes or disk space by some older operating systems or software.
When to Use 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.
Additional Unit Information
About Kilobyte (KB)
How many bytes are in a kilobyte?
According to the official SI standard, 1 kilobyte (KB) = 1000 bytes. However, historically and in some computing contexts (especially relating to RAM or older software), "kilobyte" was informally used to mean 1024 bytes. The correct term for 1024 bytes is 1 kibibyte (KiB). Always check the context or look for the specific symbol (KB vs. KiB) if precision is important.
What is the difference between KB and KiB?
- KB (kilobyte): Based on the decimal prefix 'kilo-', meaning 1000 bytes (103 bytes). This is the SI standard.
- KiB (kibibyte): Based on the binary prefix 'kibi-', meaning 1024 bytes (210 bytes). This is the IEC standard for binary multiples.
A kibibyte (KiB) is 2.4% larger than a kilobyte (KB) (1 KiB = 1.024 KB). Using KiB when referring to 1024 bytes avoids ambiguity.
Is a megabyte 1000 or 1024 kilobytes?
Similar confusion exists for larger units. Following the standards:
- A megabyte (MB) is 1000 kilobytes (KB), which equals 1,000,000 bytes (1000 * 1000).
- A mebibyte (MiB) is 1024 kibibytes (KiB), which equals 1,048,576 bytes (1024 * 1024).
Manufacturers often use MB (decimal) for capacity, while operating systems might use MiB (binary) or ambiguously use MB to mean MiB, leading to apparent discrepancies in storage size.
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.
Conversion Table: Kilobyte to Mebibyte
| Kilobyte (KB) | Mebibyte (MiB) |
|---|---|
| 0.5 | 0.001 |
| 1 | 0.001 |
| 1.5 | 0.001 |
| 2 | 0.002 |
| 5 | 0.005 |
| 10 | 0.01 |
| 25 | 0.024 |
| 50 | 0.048 |
| 100 | 0.095 |
| 250 | 0.238 |
| 500 | 0.477 |
| 1,000 | 0.954 |
People Also Ask
How do I convert Kilobyte to Mebibyte?
To convert Kilobyte to Mebibyte, enter the value in Kilobyte 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 Kilobyte to Mebibyte?
The conversion factor depends on the specific relationship between Kilobyte and Mebibyte. 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 Mebibyte back to Kilobyte?
Yes! You can easily convert Mebibyte back to Kilobyte by using the swap button (⇌) in the calculator above, or by visiting our Mebibyte to Kilobyte converter page. You can also explore other data storage conversions on our category page.
Learn more →What are common uses for Kilobyte and Mebibyte?
Kilobyte and Mebibyte 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
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📚 How to Convert Units
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All Data Storage Conversions
Other Data Storage Units and Conversions
Explore other data storage units and their conversion options:
- Bit (b) • Kilobyte to Bit
- Byte (B) • Kilobyte to Byte
- Kilobit (kb) • Kilobyte to Kilobit
- Megabit (Mb) • Kilobyte to Megabit
- Megabyte (MB) • Kilobyte to Megabyte
- Gigabit (Gb) • Kilobyte to Gigabit
- Gigabyte (GB) • Kilobyte to Gigabyte
- Terabit (Tb) • Kilobyte to Terabit
- Terabyte (TB) • Kilobyte to Terabyte
- Petabit (Pb) • Kilobyte to Petabit
Verified Against Authority Standards
All conversion formulas have been verified against international standards and authoritative sources to ensure maximum accuracy and reliability.
International Electrotechnical Commission — Binary prefixes for digital storage (KiB, MiB, GiB)
International Organization for Standardization — International standards for quantities and units
Last verified: December 3, 2025