🌍 Calculators and converters for everyday use
Math

Math Calculatrices

25 interactive tools with transparent guidance and tested shared calculation logic.

Math

Percentage Calculatrice

Find what percentage one number is of another.

Math

Percentage Change Calculatrice

Measure the percentage increase or decrease between two values.

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Percentage Increase Calculatrice

Calculate a new value after a percentage increase.

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Percentage Decrease Calculatrice

Calculate a new value after a percentage decrease.

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Average Calculatrice

Calculate the arithmetic mean of a list of numbers.

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Weighted Average Calculatrice

Combine values using custom weights.

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Ratio Calculatrice

Reduce a two-number ratio to its simplest integer form.

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Proportion Calculatrice

Solve a/b = c/x for the missing fourth value.

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Exponent Calculatrice

Raise a base to any real exponent.

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Square Root Calculatrice

Find the principal square root of a non-negative number.

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Nth Root Calculatrice

Find the nth root of a value.

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Quadratic Formula Calculatrice

Solve ax² + bx + c = 0 for real roots.

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Pythagorean Theorem Calculatrice

Find the hypotenuse of a right triangle from its two legs.

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Slope Calculatrice

Calculate slope between two Cartesian points.

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Distance Between Two Points Calculatrice

Find straight-line distance between two 2D points.

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Midpoint Calculatrice

Find the midpoint between two 2D points.

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Circle Area Calculatrice

Calculate circle area from radius.

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Circle Circumference Calculatrice

Calculate a circle circumference from radius.

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Triangle Area Calculatrice

Calculate triangle area from base and perpendicular height.

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Rectangle Area Calculatrice

Calculate rectangle area.

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Trapezoid Area Calculatrice

Calculate trapezoid area from parallel sides and height.

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Cylinder Volume Calculatrice

Calculate cylinder volume from radius and height.

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Sphere Volume Calculatrice

Calculate sphere volume from radius.

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GCD Calculatrice

Find the greatest common divisor of two integers.

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LCM Calculatrice

Find the least common multiple of two integers.