Free calculators for percentages, roots, statistics, geometry and physics. Each one shows the method, so you can check the working, not just the answer.
Percentages
5 toolsThe most-searched everyday math, from percent off to percent change.
Roots and Number Theory
5 toolsRoots, factors and multiples for algebra and homework.
Statistics and Probability
4 toolsSummarise a data set or work out the odds.
Geometry and Coordinates
2 toolsCoordinate geometry helpers.
Physics and Science
4 toolsApplied science and exam tools.
Math you can check, not just copy
The most useful math tool is one that shows its working. Every calculator here returns the answer and, where it helps, the method behind it, so you can learn the step rather than just paste the result. That makes this hub as handy for homework and revision as it is for a quick real-world sum.
Start with the everyday math
Percentages are the calculations people reach for most, so the percentage calculator is a good first stop for discounts, changes and shares. For algebra and homework, the roots and number-theory tools cover square roots, factors and multiples, while the statistics section turns a list of numbers into a clean summary.
Accurate and private
Each tool uses standard mathematical definitions, so results are precise. Everything runs in your browser and nothing you enter is stored.
Frequently asked questions
Do these calculators show the steps?
Many do. Tools like the percentage and statistics calculators display the method or formula alongside the answer, which is useful for learning and for checking your own working.
Are they suitable for school and college homework?
Yes. They cover common school and early-college topics such as percentages, roots, factors, standard deviation and coordinate geometry, and they show enough working to help you understand the result.
How accurate are the results?
They use standard mathematical definitions and full-precision arithmetic, rounding only the display. For most purposes the answers are exact.
Is any of this stored or shared?
No. The math runs entirely in your browser, so the numbers you enter are never saved or sent anywhere.
Reviewed by Prof. Dr. Khalil Mudassar, PhD
Formulas and conversion factors on this page are checked for accuracy against standard references. View profile
These calculators are provided for education and general use. Results are based on standard mathematical definitions and the values you enter. For graded or published work, always verify the method and result yourself.
Creator
Hamza Shakeel is the Chief Technology Officer at MultiCalculators.com, responsible for the platform's technical architecture, calculator engine performance, and infrastructure reliability. He leads engineering efforts focused on site speed, mobile responsiveness, Core Web Vitals optimization, and security. Hamza ensures every calculation runs accurately and instantly across all devices, while maintaining the platform's stability and scalability as it grows. His work directly supports the seamless, trustworthy experience users expect from MultiCalculators.com.
Areas of Expertise: Web Engineering, Core Web Vitals, Site Performance, Calculator Logic, Cloud Infrastructure, Security