Math & Statistics Calculators
Everyday number questions: the average and spread of a list, a percentage of a number, how much something changed, how two quantities compare, and the size of common shapes.
9 calculators
Calculators in this category
- Average CalculatorMean, median, sum, minimum and maximum of a list of numbers.
- Percentage Change CalculatorFind the percentage increase or decrease between two values.
- Ratio CalculatorSimplify ratios and solve proportions with fractions and percentages.
- Percentage CalculatorPercent of a number, what percent one number is of another, and more.
- Circle CalculatorRadius, diameter, circumference and area from any one of them.
- Area CalculatorArea of rectangles, triangles, trapezoids, ellipses and more.
- Volume CalculatorVolume and surface area of boxes, cylinders, spheres, cones and pyramids.
- Standard Deviation CalculatorStandard deviation and variance of a list, for a sample or a population.
- Pythagorean Theorem CalculatorHypotenuse or missing leg of a right triangle, with area and angles.
Which calculator should I use?
- Average Calculator: You have a list of numbers and want the mean, median, sum, smallest and largest value.
- Percentage Change Calculator: You are comparing an old and a new value, or applying an increase or decrease to a number.
- Ratio Calculator: You want to simplify a ratio or find the missing term of a proportion.
- Percentage Calculator: You need a percent of a number, what percent one number is of another, or the whole behind a percentage.
- Circle Calculator: You know one measurement of a circle and want its radius, diameter, circumference and area.
- Area Calculator: You need the area of a rectangle, triangle, trapezoid, parallelogram or ellipse.
- Volume Calculator: You need the volume or surface area of a box, cylinder, sphere, cone or pyramid.
- Standard Deviation Calculator: You want the spread of a list of numbers, for a sample or a whole population.
- Pythagorean Theorem Calculator: You know two sides of a right triangle and need the third, plus its area and angles.