Online Calculators

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Factorial Calculator

Calculate factorial of any number up to 20.

📐 Math & Statistics

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Permutation Calculator (nPr)

Calculate number of permutations of n objects taken r at…

📐 Math & Statistics

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Combination Calculator (nCr)

Calculate number of combinations of n objects taken r at…

📐 Math & Statistics

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Probability Calculator

Calculate basic probability of an event occurring.

📐 Math & Statistics

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🔢

LCM & GCD Calculator

Find LCM and GCD of two numbers.

📐 Math & Statistics

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🔍

Prime Number Checker

Check if a number is prime. Works for numbers up…

📐 Math & Statistics

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Circle Calculator

Calculate area, circumference and diameter of a circle.

📐 Math & Statistics

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Rectangle Calculator

Calculate area, perimeter and diagonal of a rectangle.

📐 Math & Statistics

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Triangle Calculator

Calculate area and perimeter of a triangle.

📐 Math & Statistics

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📐

Pythagorean Theorem Calculator

Calculate the hypotenuse or any side of a right triangle.

📐 Math & Statistics

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🔭

Quadratic Equation Solver

Solve quadratic equations ax² + bx + c = 0.

📐 Math & Statistics

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Cube Calculator

Calculate volume, surface area and diagonal of a cube.

📐 Math & Statistics

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