Binary to Decimal
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Binary to decimal chart
| Binary | Decimal |
|---|---|
| 1 | 1 |
| 10 | 2 |
| 100 | 4 |
| 1000 | 8 |
| 1010 | 10 |
| 1111 | 15 |
| 10000 | 16 |
| 100000 | 32 |
| 1100100 | 100 |
| 11111111 | 255 |
Reverse or related: decimal to binary · hex to decimal · decimal to hex · all bases
Frequently asked questions
How do I convert binary to decimal?
Give each binary digit a place value that doubles from right (1, 2, 4, 8, 16 …) and add the values where the digit is 1. For example 1010 = 8 + 2 = 10. Or paste it into the converter and read the decimal instantly.
What is 11111111 in decimal?
11111111 (binary) is 255 in decimal — eight 1-bits, the maximum value of one byte.
Does it handle long binary strings?
Yes. The converter uses BigInt, so 64-bit and longer binary values convert to exact decimals with no rounding.
Is my input uploaded?
No. TryDevSnip converts locally in your browser. Nothing you type is uploaded to our servers for processing.