# Modulo Calculator

> Modulo calculator: compute a mod b with quotient and remainder for programming, hashing, ciphers, and clock math. Free, private, runs in your browser.

- **Canonical URL:** https://boringtoolskit.com/modulo-calculator/
- **Category:** Everyday Calculators
- **Evidence level:** catalogue
- **Reviewed:** July 26, 2026
- **Last verified:** 2026-10-12
- **Privacy:** Inputs and results stay in this browser unless the page clearly labels an external request.

---

*Local planning estimate. Verify current terms, rates, and policies before acting.*