Binary Calculator
Convert between binary, decimal, hexadecimal, and octal numbers. Perform binary arithmetic operations and number system conversions.
Number System Converter
Base 10 number system
Number System Information
Decimal (Base 10)
Uses digits 0-9. Most common number system in everyday life.
Binary (Base 2)
Uses digits 0-1. Used in computer systems and digital electronics.
Hexadecimal (Base 16)
Uses digits 0-9 and A-F. Common in programming and computer science.
Octal (Base 8)
Uses digits 0-7. Sometimes used in computing and digital systems.
How the Binary calculator works
This free binary calculator runs entirely in your browser using standard mathematical formulas. Enter your figures, tap Calculate, and results update instantly — no signup required.
Figures are estimates for general information. Always verify important decisions with a qualified professional where relevant.
- Input your values using the fields above (numeric keypad on mobile).
- Results use precise floating-point arithmetic rounded for display.
- Refresh or change inputs and recalculate anytime.
Worked example
- Choose typical values for a common binary scenario.
- Enter those values in the calculator fields above.
- Tap Calculate and compare the on-screen result with the expected formula outcome.
- Adjust one input at a time to see how the result changes.