Megabytes (MB) to Bytes (B) Converter
The Megabytes (MB) to Bytes (B) Converter turns your Megabyte (MB) value into Bytes (B). Type your storage value in the input field — 1 MB = 1,000,000 B, calculated across both decimal (SI) and binary (IEC) standards.
Megabytes (MB) to Bytes (B) Converter
How to Convert Megabytes to Bytes
To convert megabytes to bytes, multiply by 1,000,000. This gives you the equivalent storage size in the target unit. See also: convert Bytes to Megabytes.
MB: A megabyte is 1,000 kilobytes or 1,000,000 bytes using the SI decimal standard. See also: Megabytes to Petabytes conversion.
B: A byte consists of 8 bits and is the standard unit for measuring digital storage. One byte can represent 256 different values (0-255). Use our MiB to Bytes converter.
1 MB = 1,000,000 B (using SI decimal standard) — which means there are 1,000,000bytes in every megabyte.
MB to B Conversion Formula
// Convert MB to B
B = MB × 1,000,000
// Reverse: Convert B to MB
MB = B × 0.000001Megabyte to Byte Conversion Examples
100 MB = 100,000,000 B
256 MB = 256,000,000 B
500 MB = 500,000,000 B
1,000 MB = 1,000,000,000 B
2,048 MB = 2,048,000,000 B
What Is a Megabyte (MB)? Definition and Uses
A megabyte is 1,000 kilobytes or 1,000,000 bytes using the SI decimal standard. Try the Tebibits to EB calculator.
The megabyte is a SI decimal unit of digital information storage. It uses base 1,000 following the SI (International System of Units) standard. Learn more: convert Pbps to Bytes Per Second.
Common uses: MP3 files, high-resolution images, short video clips, software installers Learn more: Megabytes to KiB.
1 MB = 8 × 10⁶ bits = 1 × 10⁶ bytes.
The megabyte can be abbreviated as MB; for example, 1 megabyte can be written as 1 MB.
What Is a Byte (B)? Definition and Uses
A byte consists of 8 bits and is the standard unit for measuring digital storage. One byte can represent 256 different values (0-255). Try the how many B in Kibibytes.
The byte is a fundamental unit of digital information storage. It uses base 1,000 following the SI (International System of Units) standard. Learn more: how many Gigabits in a Zib.
Common uses: File sizes, memory addressing, character encoding (ASCII, UTF-8) See also: calculate Tbps to EB/s.
1 B = 8 bits = 1 bytes.
The byte can be abbreviated as B; for example, 1 byte can be written as 1 B.
Megabyte to Byte Conversion Table
The table below shows various megabyte measurements converted to bytes.
| Megabytes | Bytes |
|---|---|
| 1 MB | 1,000,000 B |
| 2 MB | 2,000,000 B |
| 5 MB | 5,000,000 B |
| 10 MB | 10,000,000 B |
| 25 MB | 25,000,000 B |
| 50 MB | 50,000,000 B |
| 100 MB | 100,000,000 B |
| 128 MB | 128,000,000 B |
| 250 MB | 250,000,000 B |
| 256 MB | 256,000,000 B |
| 500 MB | 500,000,000 B |
| 512 MB | 512,000,000 B |
| 1,000 MB | 1,000,000,000 B |
| 1,024 MB | 1,024,000,000 B |
SI Decimal vs Binary: Why Two Different Standards?
When converting megabytes to bytes, different tools may give slightly different results. This is because there are two competing standards for measuring digital storage:
| Standard | Base | 1 KB equals | Used By |
|---|---|---|---|
| SI Decimal | 1000 | 1,000 bytes | Hard drive manufacturers, macOS, network speeds |
| Binary (IEC) | 1024 | 1,024 bytes | Windows, Linux (partially), RAM specifications |
Note: Our calculator defaults to SI decimal (base 1000) to match the box label. To match Windows, toggle the standard at the top of the calculator.