About the Binary Arithmetic Calculator
A binary addition, subtraction, and multiplication calculator with full working, in your browser.
What it is
The Binary Arithmetic Calculator performs addition, subtraction, and multiplication on binary numbers and shows the column-by-column working โ carries in addition, borrows in subtraction, and partial products in multiplication. It's built for computer science students and anyone learning or checking binary arithmetic by hand.
Features
Three operations
Add, subtract, or multiply binary numbers in one tool.
Full working shown
See every carry, borrow, and partial product used to reach the result.
Decimal verification
Every binary value is shown alongside its decimal equivalent.
Instant validation
Invalid binary input or an unsupported negative subtraction is flagged immediately.