Binary ↔ Decimal Converter
Convert between binary and decimal with 4-bit padded output. Runs entirely in your browser.
Binary → Decimal
Padding:
Quick Reference
How Binary Works
Binary is a base-2 number system using only 0 and 1.
Each position represents a power of 2 from right to left:
128
64
32
16
8
4
2
1
0 0 0 0 1 1 0 1 = 8 + 4 + 1 = 13
0 0 0 0 1 1 0 1 = 8 + 4 + 1 = 13