Exact Decimal Arithmetic Calculator
Perform decimal arithmetic without binary floating-point rounding for finite decimal inputs.
Your result
MATHEnter your values and select calculate.
On this page How it works & practical examples
How to use the Exact Decimal Arithmetic Calculator
Perform decimal arithmetic without binary floating-point rounding for finite decimal inputs. Up to 100 digits per input and 50 fractional digits are supported; division has an explicit precision limit.
The calculation
Worked example
0.1 + 0.2 returns exactly 0.3. Division truncates toward zero to the entered decimal places.
Assumptions and limits
No scientific exponent input or recurring-decimal symbolic output. Division is truncated, not rounded, and dividing by zero is rejected.
Common questions
Which inputs should I use?
Perform decimal arithmetic without binary floating-point rounding for finite decimal inputs. Up to 100 digits per input and 50 fractional digits are supported; division has an explicit precision limit.
What does the result exclude?
No scientific exponent input or recurring-decimal symbolic output. Division is truncated, not rounded, and dividing by zero is rejected.