Modulo Calculator

Find the remainder when one number is divided by another.

The modulo operation

The modulo (mod) operation returns the remainder after dividing one number by another. For example, 17 mod 5 is 2. It is widely used in programming, number theory and finding cycles. This calculator returns both the quotient and the remainder.

Frequently Asked Questions

What is the Modulo Calculator?

Find the remainder when one number is divided by another. It runs instantly in your browser and is completely free.

Is the Modulo Calculator free and does it require signup?

Yes. Every calculator on Calculatis is 100% free with no registration, and the values you enter are never stored.

How accurate is the Modulo Calculator?

It uses standard, widely-accepted formulas. Results are reliable estimates for general use and are not a substitute for professional advice.