Binary Calculator

Calculate binary instantly in your browser.

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What this tool does

Calculate binary instantly in your browser. Nonnegative binary integers; subtraction may give a negative (sign-magnitude) result and division is integer division with a remainder.

How to use the Binary Calculator

  1. Enter or select first binary number.
  2. Enter or select second binary number.
  3. Enter or select operation.
  4. Read the calculated result; change any measurement to compare alternatives.

Formula

Binary arithmetic works like decimal arithmetic but each digit is only 0 or 1 and you carry at 2 instead of 10; the calculator converts to integers, operates exactly, and converts back.
a
First binary number
b
Second binary number
op
Operation

Nonnegative binary integers; subtraction may give a negative (sign-magnitude) result and division is integer division with a remainder.

Worked example

For binary calculator, the following measurements illustrate the exact method: First binary number: 1010; Second binary number: 0101; Operation: add.

Inputs

  • First binary number1010
  • Second binary number0101
  • OperationAdd

Result

  • Result (binary)1111
  • Result (decimal)15
  • First number (decimal)10
  • Second number (decimal)5

Results explained

Result (binary)
Result (binary) from the formula above. Nonnegative binary integers; subtraction may give a negative (sign-magnitude) result and division is integer division with a remainder.
Result (decimal)
Result (decimal) from the formula above. Nonnegative binary integers; subtraction may give a negative (sign-magnitude) result and division is integer division with a remainder.
First number (decimal)
First number (decimal) from the formula above. Nonnegative binary integers; subtraction may give a negative (sign-magnitude) result and division is integer division with a remainder.
Second number (decimal)
Second number (decimal) from the formula above. Nonnegative binary integers; subtraction may give a negative (sign-magnitude) result and division is integer division with a remainder.

Frequently asked questions

Binary arithmetic works like decimal arithmetic but each digit is only 0 or 1 and you carry at 2 instead of 10; the calculator converts to integers, operates exactly, and converts back.

Nonnegative binary integers; subtraction may give a negative (sign-magnitude) result and division is integer division with a remainder.

Where mathematically meaningful, yes. Fields specify permitted ranges and undefined operations display an error.

Exact integer calculations use safe integers; decimal calculations use browser floating point, so small rounding differences can occur.

All values remain in your browser and are never uploaded.