Free Math Calculators
Fast, accurate math tools for students, professionals, and everyday calculations. Percentage calculator, scientific calculator, GPA calculator, and more — all free, no sign-up required.
Math & Utility Tools
Percentage Calculator
Calculate percentages, percentage increase/decrease, percentage of a number, and reverse percentage.
Scientific Calculator
Perform advanced math: trigonometry, logarithms, exponents, roots, and more — with keyboard support.
GPA Calculator
Calculate cumulative GPA from your grades and credit hours. Supports weighted and unweighted GPA.
Date Calculator
Find the number of days between two dates, add or subtract time periods, and calculate future/past dates.
Password Generator
Generate cryptographically strong random passwords with custom length and character requirements.
Built for Students & Professionals
No Installation
All tools run in your browser. No app, no plugin, no account. Open any calculator and start computing instantly.
Keyboard Support
Our scientific calculator works with your keyboard for fast calculations — perfect for students and professionals.
Ad-Free Core Experience
The calculator input and results area are always clean and distraction-free. We only place ads outside the core tool area.