From basic arithmetic to scientific functions, our calculator tools cover the full range of everyday and academic maths. The basic calculator offers a clean, familiar interface for quick calculations, while the scientific calculator supports trigonometry, logarithms, exponents, factorials, and degree-radian conversion.

Beyond the standard calculators, the collection includes specialized tools for GPA calculation, averages, fractions, ratios, LCM and GCD, quadratic equations, standard deviation, prime checking, and random number generation. Each calculator is designed to be fast and focused — no clutter, no distractions.

Students, teachers, and professionals use these tools for homework, quick estimates, and verifying manual calculations. Every computation runs locally in your browser for instant results.

Frequently Asked Questions

Can I use keyboard shortcuts with the calculators?

Yes. The basic calculator supports number keys, +, -, *, /, Enter for equals, Escape to clear, and Backspace to delete. The scientific calculator uses the same shortcuts plus function buttons.

Does the scientific calculator support trigonometric functions?

Yes, it supports sin, cos, tan and their inverses (asin, acos, atan) in both degree and radian modes. It also includes logarithmic, exponential, and factorial functions.

How is GPA calculated?

The GPA calculator uses the standard weighted average formula: multiply each course grade by its credit hours, sum the products, and divide by total credit hours. You can add as many courses as needed.

Can I use these calculators on my phone?

Yes. Every calculator is fully responsive and works on mobile devices. The button sizes and layouts are optimized for touch screens.