Question 1

What is modulo (remainder)?

Accepted Answer

The remainder after division. 17 mod 5 = 2 because 17 = 5×3 + 2. Written as 17 % 5 in programming.

Question 2

Where is modulo used?

Accepted Answer

Clock arithmetic (12-hour), checking even/odd (n%2), cyclic patterns, cryptography, and hash functions.

Question 3

How accurate are these calculations?

Accepted Answer

Our calculator uses double-precision floating-point arithmetic, accurate to about 15-16 significant digits for most calculations.

Question 4

Can I use the result in further calculations?

Accepted Answer

Yes, results are calculated to full precision. You can copy the exact value or use the rounded display depending on your needs.

Modulo Calculator - Free Online Tool

Frequently Asked Questions