This converter turns bytes into bits instantly, using the exact factor 1 byte = 8 bits. Type any number and the result updates as you go — nothing is sent to a server, so the arithmetic happens entirely in your browser.
Eight bits; the addressable unit of computer memory. A single binary digit — the smallest unit of information.
Because the relationship is a simple proportion, one multiplication does the whole job. The table further down gives pre-computed values for the amounts people look up most often, and the result panel also reports the reverse conversion so you can check the figure both ways.
The formula
bytes- The amount you are converting, measured in bytes
8- The exact number of bits in one byte
bits- The converted result
How it works, step by step
- Enter the number of bytes you want to convert.
- The value is multiplied by 8, the exact conversion factor.
- The result is displayed in bits, rounded for readability.
- The unrounded value and the reverse conversion appear underneath so you can verify it.
Worked examples
Converting 5 bytes
Multiply 5 by 8. That gives 40 bits. A quick sanity check: one byte is larger than one bit, so the number should get bigger — and it does.
Converting 72 bytes
72 × 8 = 576 bits. Working backwards, 576 ÷ 8 returns 72 bytes, which confirms the factor is applied the right way round.
How to read your score
Frequently asked questions
How many bits are in one byte?
Exactly 8. Every conversion on this page is that single number multiplied by your input, so the result carries no rounding error beyond what is shown.
What is the formula to convert bytes to bits?
Bits = bytes × 8. To reverse it, divide instead: bytes = bits ÷ 8, which is the same as multiplying by 0.125.
Is the byte bigger than the bit?
Yes. One byte equals 8 bits, so it is the larger unit.
Why does my answer differ slightly from other bytes to bits converters?
Most differences come from rounding the factor too early. This tool keeps full double precision through the calculation and only rounds at the final display step, and it also shows the unrounded value so you can see exactly where any difference appears.
What is a byte?
Eight bits; the addressable unit of computer memory.
What is a bit?
A single binary digit — the smallest unit of information.
Bytes to bits reference table
| Bytes | Bits |
|---|---|
| 0.5 B | 4 b |
| 1 B | 8 b |
| 2 B | 16 b |
| 3 B | 24 b |
| 5 B | 40 b |
| 10 B | 80 b |
| 15 B | 120 b |
| 20 B | 160 b |
| 25 B | 200 b |
| 50 B | 400 b |
| 75 B | 600 b |
| 100 B | 800 b |
| 250 B | 2,000 b |
| 500 B | 4,000 b |
| 1000 B | 8,000 b |
Exact factor: 1 byte = 8 bits. Values rounded for display.