Binary Converter
Convert decimal numbers to binary and binary back to decimal.
π Updated October 13, 2026
About the Binary Converter
Solve it in seconds with the Binary Converter. Convert decimal numbers to binary and binary back to decimal. Accurate, instant and free β no signup, no app install. Students also reach for the Percentage Calculator and Scientific Calculator.
How to use this calculator
- Enter your numbers in the fields above.
- Results update instantly β no button to press, no page reload.
- Adjust the inputs to compare scenarios with the Binary Converter.
Keep exploring: Percentage Calculator Β· Basic Calculator Β· Date Difference Calculator Β· Scientific Calculator
Frequently asked questions
What is binary?
Base-2 numbering using only 0 and 1 β the language of computers.
How many bits for 255?
8 bits: 11111111.
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