Maths Calculators

Find the mean, total, smallest and largest of up to six numbers.

Find a percentage of any number.

Calculate what percentage one value is of another.

Increase a number by a chosen percentage.

Decrease a number by a chosen percentage.

Measure the percentage change between an old and new value.

Work backwards from a percentage-adjusted amount to the original value.

Calculate a weighted average from three values and weights.

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

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

Convert a fraction into a percentage.

Convert a decimal to a simplified fraction.

Calculate a circle's area and circumference from its radius.

Calculate rectangle area and perimeter.

Calculate triangle area from base and height.

Find the hypotenuse of a right-angled triangle.

Calculate trapezoid area from parallel sides and height.

Calculate sphere volume and surface area.

Calculate cylinder volume and total surface area.

Calculate the volume of a cone.

Calculate cube volume and surface area.

Calculate a rectangular prism's volume and surface area.

Solve ax² + bx + c = 0.

Find the slope between two coordinate points.

Calculate straight-line distance between two coordinate points.

Use a clean, full-size calculator for everyday arithmetic, percentages and brackets.