Binary to Decimal Calculator
Enter a binary number (0s and 1s) to convert it to decimal.
How to Convert Binary to Decimal
Method: positional notation
Multiply each bit by 2 raised to its position (right to left, starting at 0), then sum all values.
Example: 1010 = 1×2³ + 0×2² + 1×2¹ + 0×2&sup0; = 8 + 0 + 2 + 0 = 10
Quick reference
| Binary | Decimal | Hex |
|---|---|---|
| 0000 | 0 | 0 |
| 0001 | 1 | 1 |
| 1000 | 8 | 8 |
| 1010 | 10 | A |
| 1111 | 15 | F |
| 10000 | 16 | 10 |
