Binary to Decimal Converter

My calculations
History
Number
2
Direction

How to convert

Converting binary numbers to decimal involves expressing the binary number as a sum of powers of 2. Each binary digit (bit) represents a power of 2, starting from the rightmost bit (which is the least significant bit).

abc2 = (a×22 + b×21 + c×20)10

1102 = (1*22 + 1*21 + 0*20)10 = 610
100100102 = (1*27 + 0*26 + 0*25 + 1*24 + 0*23 + 0*22 + 1*21 + 0*20)10 = 14610

See also

Catalog
Favourites
Add calculators to favourites and they will appear here.
Account
Unregistered
Saved calculations
/ 5
Register and ...
  • Access saved calculations from any device
  • Save up to 15 calculations
  • Add calculators to favourites
Search