Convert a binary number to decimal, hex, octal, or ASCII text using the converter below.
How to Convert a Binary Number
To convert a binary number to decimal, use the following formula:
decimal number10 = (d0 × 20) + (d1 × 21) + … + (dn – 1 × 2n – 1)
In the formula above, d0 is the binary digit furthest to the right, d1 is the digit one position from the right, and dn – 1 is the digit furthest to the left.
Binary Conversion Resources
Use our binary conversion resources to learn more about binary calculations: