Math calculators
Quadratics, triangles, fractions, factors, logarithms and sequences. Free, instant and with the working shown.
All 14 tools
- Quadratic Formula CalculatorSolve ax² + bx + c = 0, including complex roots and the vertex.
- Pythagorean Theorem CalculatorFind a missing side of a right triangle.
- Triangle CalculatorFind area, angles and radii of a triangle from its three sides.
- Circle CalculatorFind area, circumference, radius and diameter from any one of them.
- GCD and LCM CalculatorFind the greatest common divisor and least common multiple of two or more numbers.
- Prime Factorization CalculatorBreak a number into prime factors and count its divisors.
- Factorial CalculatorCalculate n! for whole numbers up to 170 exactly.
- Combinations and Permutations CalculatorCalculate nCr and nPr.
- Fraction CalculatorAdd, subtract, multiply and divide fractions with simplified results.
- Scientific Notation CalculatorConvert numbers to and from scientific notation.
- Logarithm CalculatorCalculate logarithms to any base, with ln, log₁₀ and log₂.
- Ratio CalculatorSolve proportions and simplify ratios.
- Slope CalculatorFind slope, distance, midpoint and the line equation between two points.
- Arithmetic and Geometric Sequence CalculatorFind the nth term and the sum of an arithmetic or geometric sequence.