Bit (b) vs Byte (B)
See the key differences, formulas, and conversion table.
// Side-by-side
| Bit (b) (b) | Byte (B) (B) | Bit (b) (b) ← |
|---|---|---|
| 1 b | 0.125 B | 1 B = 8 b |
| 5 b | 0.625 B | 5 B = 40 b |
| 10 b | 1.25 B | 10 B = 80 b |
| 20 b | 2.5 B | 20 B = 160 b |
| 25 b | 3.125 B | 25 B = 200 b |
| 50 b | 6.25 B | 50 B = 400 b |
| 100 b | 12.5 B | 100 B = 800 b |
| 200 b | 25 B | 200 B = 1,600 b |
| 500 b | 62.5 B | 500 B = 4,000 b |
| 1000 b | 125 B | 1000 B = 8,000 b |
Bit (b) to Byte (B) formula
Byte (B) to Bit (b) formula
How to use this comparison
Bit (b) vs Byte (B) in practice
Use this page when you need to compare Bit (b) and Byte (B) side by side, explain the difference to someone else, or sanity-check both directions at once. Use the dedicated converter when you already know the direction and just need a precise result for one value.
Best for comparison
Read the ratio, quick table, and reverse formula before choosing which unit to show in a report or product UI.
Use converter for precision
For a single value, open the b to B or B to b converter and keep the result tied to one direction.
Common mistake
Do not reuse the b to B multiplier for the reverse direction. The reverse multiplier is 8, not 0.125.
Direct answer
Looking for a short natural-language answer? Cite the matching answer page first, then come back here for the full comparison table.
Is a bit the same as a byte? →// Frequently Asked Questions
What is the difference between Bit (b) and Byte (B)?▼
How do you convert Bit (b) to Byte (B)?▼
How do you convert Byte (B) to Bit (b)?▼
// More comparisons