Megabit to Kilobyte Converter
Convert megabits to kilobytes with our free online data storage converter.
Quick Answer
1 Megabit = 125 kilobytes
Formula: Megabit × conversion factor = Kilobyte
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.
Megabit to Kilobyte Calculator
How to Use the Megabit to Kilobyte Calculator:
- Enter the value you want to convert in the 'From' field (Megabit).
- The converted value in Kilobyte 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 Megabit to Kilobyte: Step-by-Step Guide
Converting Megabit to Kilobyte involves multiplying the value by a specific conversion factor, as shown in the formula below.
Formula:
1 Megabit = 125 kilobytesExample Calculation:
Convert 10 megabits: 10 × 125 = 1250 kilobytes
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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Need to convert to other data storage units?
View all Data Storage conversions →What is a Megabit and a Kilobyte?
A megabit (Mb or Mbit) is a multiple of the bit unit for digital information or computer storage. The prefix mega- (symbol M) is defined in the International System of Units (SI) as a multiplier of 106 (1 million). Therefore, 1 megabit = 1,000,000 bits (or 1000 kilobits).
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.
Note: The Megabit is part of the imperial/US customary system, primarily used in the US, UK, and Canada for everyday measurements. The Kilobyte belongs to the imperial/US customary system.
History of the Megabit and Kilobyte
As data transfer speeds increased beyond the kilobit range, the megabit became a common unit, particularly in networking and telecommunications. Like the kilobit, it generally adheres to the SI standard (106 bits) rather than the binary interpretation sometimes used for bytes (which would be 220 bits, correctly termed a mebibit). The introduction of binary prefixes like 'mebi-' aimed to resolve this potential ambiguity.
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.
Common Uses and Applications: megabits vs kilobytes
Explore the typical applications for both Megabit (imperial/US) and Kilobyte (imperial/US) to understand their common contexts.
Common Uses for megabits
- Measuring data transfer rates (e.g., internet connection speeds in Mbps - megabits per second).
- Quantifying network bandwidth.
- Specifying the capacity of older storage media or certain types of memory chips.
- Video and audio bitrates (e.g., streaming quality often measured in Mbps).
When to Use 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.
Additional Unit Information
About Megabit (Mb)
How many bits are in a megabit?
There are exactly 1,000,000 bits (or 106 bits) in 1 megabit (Mb), based on the standard SI definition of the prefix 'mega-'.
What is the difference between a megabit (Mb) and a megabyte (MB)?
- A megabit (Mb) measures bits and equals 1,000,000 bits. It's often used for data transfer rates.
- A megabyte (MB) measures bytes. According to SI standards, it equals 1,000,000 bytes. (Note: Historically, MB was sometimes used informally for 1,048,576 bytes, which is correctly termed a mebibyte (MiB)).
Since 1 byte = 8 bits, 1 megabyte (1,000,000 bytes) is equal to 8,000,000 bits. Therefore, a megabyte represents 8 times more data than a megabit.
What is the difference between a megabit (Mb) and a mebibit (Mib)?
- A megabit (Mb) uses the decimal SI prefix 'mega-' and equals 106 bits (1,000,000 bits).
- A mebibit (Mib) uses the binary IEC prefix 'mebi-' and equals 220 bits (1,048,576 bits).
A mebibit is approximately 4.86% larger than a megabit (1 Mib ≈ 1.0486 Mb). Using Mib provides clarity when specifically referring to 1,048,576 bits.
If my internet speed is 100 Mbps, how fast is that in MBps?
To convert Mbps (megabits per second) to MBps (megabytes per second), you divide by 8 (since 1 byte = 8 bits). So, 100 Mbps / 8 = 12.5 MBps. This means you can theoretically download 12.5 megabytes of data per second.
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.
Conversion Table: Megabit to Kilobyte
| Megabit (Mb) | Kilobyte (KB) |
|---|---|
| 0.5 | 62.5 |
| 1 | 125 |
| 1.5 | 187.5 |
| 2 | 250 |
| 5 | 625 |
| 10 | 1,250 |
| 25 | 3,125 |
| 50 | 6,250 |
| 100 | 12,500 |
| 250 | 31,250 |
| 500 | 62,500 |
| 1,000 | 125,000 |
People Also Ask
How do I convert Megabit to Kilobyte?
To convert Megabit to Kilobyte, enter the value in Megabit 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 Megabit to Kilobyte?
The conversion factor depends on the specific relationship between Megabit and Kilobyte. 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 Kilobyte back to Megabit?
Yes! You can easily convert Kilobyte back to Megabit by using the swap button (⇌) in the calculator above, or by visiting our Kilobyte to Megabit converter page. You can also explore other data storage conversions on our category page.
Learn more →What are common uses for Megabit and Kilobyte?
Megabit and Kilobyte 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:
📚 How to Convert Units
Step-by-step guide to unit conversion with practical examples.
🔢 Conversion Formulas
Essential formulas for data storage and other conversions.
⚖️ Metric vs Imperial
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⚠️ Common Mistakes
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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) • Megabit to Bit
- Byte (B) • Megabit to Byte
- Kilobit (kb) • Megabit to Kilobit
- Megabyte (MB) • Megabit to Megabyte
- Gigabit (Gb) • Megabit to Gigabit
- Gigabyte (GB) • Megabit to Gigabyte
- Terabit (Tb) • Megabit to Terabit
- Terabyte (TB) • Megabit to Terabyte
- Petabit (Pb) • Megabit to Petabit
- Petabyte (PB) • Megabit to Petabyte
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