Skip to contentMaths Calculators
- Area CalculatorChoose a shape, enter the measurements it needs and get its area. The calculator also shows the formula it used.
- Circle CalculatorEnter the radius of a circle and this calculator gives you its area, circumference and diameter.
- Fraction CalculatorEnter two fractions and choose an operation. The answer is simplified automatically and shown as a fraction, a mixed number and a decimal.
- Mean, Median & Mode CalculatorType a list of numbers separated by commas, spaces or semicolons. This calculator gives the mean, median, mode, range, count and sum.
- Percentage CalculatorChoose the type of percentage calculation, enter two numbers and see the result straight away.
- Percentage Change CalculatorEnter the old value and the new value to see the percentage it went up or down, and the actual difference between the two.
- Pythagorean Theorem CalculatorChoose whether to find the hypotenuse or one of the other sides of a right-angled triangle, then enter the two lengths you know.
- Scientific CalculatorWork out full expressions like 2+3×4 or sin(30) right in your browser, with sin, cos, tan, log, ln, powers, square roots and factorials. It works on phones and desktops.
- Triangle CalculatorEnter the lengths of the three sides. This calculator gives the area, perimeter, all three angles, the type of triangle and whether it has a right angle.
- Trigonometry CalculatorEnter an angle, choose degrees or radians and get sin, cos and tan together.
- Volume CalculatorChoose a solid, enter the measurements it needs and get its volume. The formula used is shown too.