Byte to Bit
1 B = 8 b
How to convert byte to bit
Enter the value in byte (B) above and the equivalent in bit (b) updates as you type. This conversion comes up when buying storage: why a "1 TB" drive shows 931 GB in the OS.
Typical situations: estimating download times from connection speed; comparing phone storage tiers and cloud plans.
You can also convert in the other direction: Bit to Byte
Byte to Bit conversion table
| Byte (B) | Bit (b) |
|---|---|
| 1 | 8 |
| 2 | 16 |
| 5 | 40 |
| 10 | 80 |
| 25 | 200 |
| 50 | 400 |
| 100 | 800 |
Watch out for
- GB (storage) vs Gb (transfer speed): a byte is 8 bits, so 1 Gbps line transfers at most 125 MB/s
- Decimal (1 GB = 1000 MB, as drive makers count) vs binary (1 GiB = 1024 MiB, as operating systems report)
Frequently asked questions
How many bits is 1 byte?
1 byte = 8 bits.
What is the formula to convert byte to bits?
The formula is: b = B × 8.
What is 10 bytes in bits?
10 bytes = 80 bits.