MB to Bytes Converter
Convert megabytes to bytes instantly. One megabyte equals exactly 1,000,000 bytes. Type in either box to convert both ways, then use the chart, worked examples and everyday sizes below.
How to convert megabytes to bytes
Worked example: convert 250 megabytes to bytes. Using bytes ← megabytes × 1,000,000, we get 250 × 1,000,000 = 250,000,000 B. To check the result, convert back: 250,000,000 B ÷ 1,000,000 = 250 MB.
Megabytes to bytes chart
| Megabytes (MB) | Bytes (B) |
|---|---|
| 1 MB | 1,000,000 B |
| 2 MB | 2,000,000 B |
| 3 MB | 3,000,000 B |
| 4 MB | 4,000,000 B |
| 5 MB | 5,000,000 B |
| 6 MB | 6,000,000 B |
| 8 MB | 8,000,000 B |
| 10 MB | 10,000,000 B |
| 12 MB | 12,000,000 B |
| 15 MB | 15,000,000 B |
| 20 MB | 20,000,000 B |
| 25 MB | 25,000,000 B |
| 30 MB | 30,000,000 B |
| 40 MB | 40,000,000 B |
| 50 MB | 50,000,000 B |
| 75 MB | 75,000,000 B |
| 100 MB | 100,000,000 B |
| 150 MB | 150,000,000 B |
| 200 MB | 200,000,000 B |
| 250 MB | 250,000,000 B |
| 500 MB | 500,000,000 B |
| 1,000 MB | 1,000,000,000 B |
Bytes to megabytes (reverse)
| Bytes (B) | Megabytes (MB) |
|---|---|
| 1 B | 0.000001 MB |
| 2 B | 0.000002 MB |
| 5 B | 0.000005 MB |
| 10 B | 0.00001 MB |
| 20 B | 0.00002 MB |
| 50 B | 0.00005 MB |
| 100 B | 0.0001 MB |
| 250 B | 0.00025 MB |
| 500 B | 0.0005 MB |
| 1,000 B | 0.001 MB |
About the megabyte and the byte
A megabyte is 1,000,000 bytes in decimal. A typical smartphone photo is a few megabytes and an MP3 song around 3 to 5 MB. In binary terms 1 MiB is 1,048,576 bytes.
A byte is 8 bits and the basic unit of digital storage; one plain English character takes one byte. File sizes below 1 KB are shown in bytes.
One megabyte is 1,000,000 times the size of one byte, so it takes fewer megabytes than bytes to express the same amount.
Everyday sizes in megabytes and bytes
| Everyday example (approximate) | In megabytes | In bytes |
|---|---|---|
| A short text message | 0.00014 MB | 140 B |
| A plain-text email | 0.005 MB | 5,000 B |
| A web page | 2 MB | 2,000,000 B |
| A phone photo | 3 MB | 3,000,000 B |
| A 3-minute MP3 song | 5 MB | 5,000,000 B |
| A 2-hour HD movie | 3,000 MB | 3,000,000,000 B |
Megabytes to bytes FAQ
How many bytes are in one megabyte?
One megabyte equals exactly 1,000,000 bytes. In the other direction, one byte equals 0.000001 megabytes.
How do I convert megabytes to bytes without a calculator?
convert 250 megabytes to bytes. Using bytes ← megabytes × 1,000,000, we get 250 × 1,000,000 = 250,000,000 B. To check the result, convert back: 250,000,000 B ÷ 1,000,000 = 250 MB. For a quick estimate, round the factor to 1,000,000. Then 250 MB is about 250,000,000 B, compared with the exact 250,000,000 B (an error of 0%). That is close enough for planning, but use the calculator above when the number matters.
What is a phone photo in bytes?
A phone photo is about 3 megabytes, which is 3,000,000 bytes. Treat that as an approximate everyday figure rather than an official measurement.
Are the megabytes and bytes the same in every country?
Decimal MB = 1,000,000 bytes; binary MiB = 1,048,576 bytes. A byte is 8 bits everywhere.