Modulo Calculator
Enter a dividend and a divisor to get the remainder, the whole-number quotient, and the true mathematical modulo. The modulo operation returns what is left over after dividing one number by another, which powers clock arithmetic, hashing, cycling through lists, and checking whether numbers are even or divisible. Many programming languages return a negative remainder when the dividend is negative, so this calculator shows both the raw remainder that matches most code and the always-non-negative mathematical modulo, so you can pick the one your problem needs. It works with decimals as well as whole numbers. Type the two values and every result appears at once. All of the arithmetic happens locally in your browser, so it is instant and nothing you enter is ever uploaded.
How to use Modulo Calculator
- Enter the dividend, the number being divided.
- Enter the divisor.
- Read the remainder, quotient and true modulo.
Frequently asked questions
What does the modulo operation return?
It returns the remainder left after dividing one number by another, so 17 mod 5 is 2.
What is the difference between remainder and true modulo?
For negative numbers the remainder can be negative while the true mathematical modulo is always non-negative, and the tool shows both.
Does it also show the quotient?
Yes. Alongside the remainder you get the whole-number quotient of the division.
What is Modulo Calculator?
Enter a dividend and a divisor to get the remainder, the whole-number quotient, and the true mathematical modulo. The modulo operation returns what is left over after dividing one number by another, which powers clock arithmetic, hashing, cycling through lists, and checking whether numbers are even or divisible.
Is Modulo Calculator free to use?
Yes. Modulo Calculator is completely free, with no sign-up and no usage limits.
Does Modulo Calculator work in a web browser?
Yes. Modulo Calculator runs in any modern web browser. There is nothing to download or install.
Is my data private with Modulo Calculator?
Yes. Modulo Calculator runs entirely on your device in your browser, so nothing you enter is uploaded to a server.
Badge
Link this tool from a README, doc or site. The badge links back to this page.
[](https://yourhack.ai/modulo-calculator)