Decimal to Binary Converter

Convert Decimal (Base 10) to Binary (Base 2) with step-by-step solution.

Valid digits: 0123456789
255 (Base 10) = 11111111 (Base 2)
Step-by-Step Solution
1Convert Decimal to Binary:

Divide by 2, collect remainders:

StepDividend÷ 2QuotientRemainderDigit
1255÷ 212711
2127÷ 26311
363÷ 23111
431÷ 21511
515÷ 2711
67÷ 2311
73÷ 2111
81÷ 2011
Read bottom to top: 11111111
2Result:
255 (Base 10) = 11111111 (Base 2)

Conversion Table

DecimalDecimalBinary
000
111
2210
3311
44100
55101
66110
77111
881000
991001
10101010
15151111
161610000
202010100
3232100000

255 (Base 10) in All Bases

Number SystemBaseValue
Binary211111111
Octal8377
Hexadecimal16FF
Ternary3100110
Quaternary43333
Quinary52010
Senary61103
Septenary7513
Duodecimal12193
Vigesimal20CF
Duotrigesimal327V
Hexatrigesimal3673

Popular Conversions

How to Convert Decimal to Binary

To convert from Decimal (base 10) to Binary (base 2), divide repeatedly by 2 and collect remainders.

About Decimal

Standard number system. Uses digits: 0123456789

About Binary

Used in computers and digital systems. Uses digits: 01