Free Online Math & Geometry Tools - Calculators for Math Problems
Free online math and geometry tools including percentage calculator, fraction calculator, area and volume calculator, and prime number checker. All tools work in your browser.
Handy math utilities for everyday calculations. From percentages and fractions to geometry and prime numbers, these tools help solve common math problems instantly.
Available Tools
- Percentage Calculator — find percentages, percentage change, and what % one number is of another
- Fraction Calculator — add, subtract, multiply, divide fractions with step-by-step work
- Area & Volume Calculator — area and volume for common shapes and solids
- Prime Number Checker — check primality, find factors, list primes in a range
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🔢 All Math & Geometry
Area & Volume Calculator
Free online area and volume calculator. Calculate area of squares, rectangles, circles, triangles. Calculate volume of cubes, spheres, cylinders, cones. Fast geometry calculations.
Fraction Calculator
Free online fraction calculator. Add, subtract, multiply, and divide fractions. Simplify fractions, convert between improper and mixed numbers. Step-by-step results.
Percentage Calculator
Free online percentage calculator. Calculate percentage of a number, percentage change, percentage difference, and more. Fast and accurate percentage calculations.
Prime Number Checker
Free online prime number checker. Check if any number is prime, find all prime factors, and list primes in a range. Fast primality testing for integers.
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