Convert Megabytes to Bytes (MB to B)
1 megabyte (MB) = 1000000 bytes (B). 1 B = 0.000001 MB. Example: 15 MB = 15 × 1000000 = 15000000 B.
Also searched as megabytes to B, megabytes in B, megabytes into bytes, MB to B, MB in bytes, MB into byte, megabyte to byte, MB to bytes converter and how many bytes in a megabyte.
1 MB = 1000000 B
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk megabyte to byte converter to paste a column from Excel.
How to Convert Megabyte to Byte
- 1 MB = 1000000 B
- 1 B = 0.000001 MB
- Example: convert 15 MB to B: 15 MB = 15 × 1000000 B = 15000000 B
Formula
B = MB × 1000000
Derivation from SI units:
- 1 MB = 10⁶ bytes = 8 × 10⁶ bits (decimal, SI).
- 1 byte = 8 bits (an octet).
- 1 MB = 8000000 bit ÷ 8 bit per B = 1000000 B
Both units are defined exactly, so the factor is exact. Megabyte definition: megabyte; Byte definition: byte.
Worked examples
- A reading of 16 MB converts to 16000000 B.
16 MB × 1000000 = 16000000 B - A value of 128 MB is 128000000 B.
128 MB × 1000000 = 128000000 B
Megabyte to Byte conversion table
| Megabytes (MB) | Bytes (B) |
|---|---|
| 1 MB | 1000000 B |
| 2 MB | 2000000 B |
| 4 MB | 4000000 B |
| 8 MB | 8000000 B |
| 16 MB | 16000000 B |
| 32 MB | 32000000 B |
| 64 MB | 64000000 B |
| 100 MB | 100000000 B |
| 128 MB | 128000000 B |
| 256 MB | 256000000 B |
| 500 MB | 500000000 B |
| 1000 MB | 1000000000 B |
Where it's used
Megabytes are used for photos, documents and songs, while bytes appear in file and memory sizes. Both measure amount of digital information, so the conversion is a fixed factor.
Megabyte to other data storage units
| Conversion | 1 MB equals |
|---|---|
| megabyte to byte | 1000000 B |
| megabyte to kilobyte | 1000 kB |
| megabyte to gigabyte | 0.001 GB |
| megabyte to terabyte | 0.000001 TB |
| megabyte to bit | 8000000 bit |
| megabyte to megabit | 8 Mbit |
| megabyte to kibibyte | 976.5625 KiB |
| megabyte to mebibyte | 0.9536743164 MiB |
Show 5 more units
| megabyte to gibibyte | 0.0009313225746 GiB |
|---|---|
| megabyte to kilobit | 8000 kbit |
| megabyte to gigabit | 0.008 Gbit |
| megabyte to petabyte | 1 × 10⁻⁹ PB |
| megabyte to tebibyte | 9.094947018 × 10⁻⁷ TiB |
Frequently asked questions
How many bytes are in 1 megabyte?
1 MB = 1000000 B.
How do I convert megabytes to bytes?
Multiply the value in MB by 1000000. For example, 15 MB × 1000000 = 15000000 B.
Is the MB to B conversion exact?
Yes. Both units are defined exactly, and 1 MB is exactly 1000000 B.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 7 (SI prefixes); hertz, Table 4.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Megabytes to Bytes (MB to B). Retrieved October 25, 2026, from https://scientificconverters.com/data-storage/megabytes-to-bytes/
IEEE
Scientific Converters, "Convert Megabytes to Bytes (MB to B)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/data-storage/megabytes-to-bytes/