Modulo Calculator
Find the remainder after dividing one number by another.
Results are provided for general informational use. Verify important financial, health or legal figures before relying on them.
About this Modulo Calculator
The Modulo Calculator finds the remainder left after one number is divided by another. Modulo operations appear in programming, repeating cycles, time calculations and elementary number theory.
For related tasks, try GCD Calculator, LCM Calculator or Exponent Calculator.
How the calculation works
The tool uses the remainder operation after division. The divisor must be non-zero. For negative numbers, the sign behavior follows JavaScript remainder semantics.
How to use it
- Enter the dividend.
- Enter the divisor.
- Calculate to see the remainder.
Practical example
17 modulo 5 equals 2 because 17 = 5 × 3 + 2.
Frequently asked questions
Is modulo the same as remainder?
They are closely related; for positive inputs this tool gives the familiar division remainder.
Can the divisor be zero?
No. Division by zero is undefined.
Can I use decimal values?
Yes, although modulo is most commonly used with integers.
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