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Base-N Integer Arithmetic
Add, subtract, multiply or divide exact signed integers across independently chosen bases2–36.
First integer (text), First base (select), Operation (select), Second integer (text), Second base (select), Output base (select)
Complete exact JSON report
Browser only
Runs locally in your browser. Your files, pasted content and generated output are not uploaded. Reset clears this tool’s working data.
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How to use this tool
- Enter First integer and Second integer, then choose their bases from 2–36.
- Choose Operation and Output base, then select Calculate integers.
- Download base-arithmetic.json for original operands, exact decimal values and the result or quotient/remainder.
Examples
FF in base16 plus10 in base2 gives257 decimal and101 in base16.
Limitations
- 256 digits per operand after optional minus and outer whitespace; 512 raw UTF-16 units per operand, 4 KiB combined input, 64 KiB report and a 30-second processing limit.
- Input digits are case-insensitive; output digits are uppercase. No leading plus, base prefixes, separators or fractional operands.
- Division by zero rejects. No expression evaluation, fixed-width wrapping or saturation.
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