Math Calculators
The maths you need for homework or on the job: area and volume, ratios, exponents, logarithms, quadratic roots, LCM and GCF, and probability.
- Ratio CalculatorEnter three values to find the fourth — the unknown in the proportion.
- Area CalculatorChoose a shape and enter its dimensions to get the area and perimeter.
- Volume CalculatorChoose a solid and enter its dimensions to get the volume, surface area and litres.
- Distance Formula CalculatorEnter the coordinates of two points to get the distance, midpoint and slope.
- Exponent CalculatorEnter a base and an exponent to get the power, its root and scientific notation.
- Log CalculatorEnter a number and choose a base to get its logarithm.
- Quadratic Formula CalculatorEnter the coefficients a, b and c to get the roots and the discriminant.
- LCM and GCF CalculatorEnter your numbers to get their greatest common factor, least common multiple and prime factors.
- Probability CalculatorEnter the probability of two events to see the chance of both, either or neither.
How do you calculate area and volume?
Area is the space a surface covers, measured in square units; volume is the space a solid takes up, measured in cubic units. A rectangle’s area is length × width; a box’s volume is length × width × height.
The area calculator covers eight shapes and the volume calculator six solids, with the result also shown in everyday units such as litres.
Where are ratios and probability used in everyday life?
Ratios appear wherever two quantities change together, from scaling a recipe to reading a map scale; probability measures how likely an event is.
The ratio calculator solves direct and inverse proportions, and the probability calculator works out the chance of two events happening together, separately or not at all.
Ratio CalculatorProbability CalculatorLCM and GCF Calculator
How do you solve exponents, logarithms and quadratics?
An exponent multiplies a number by itself, a logarithm finds the exponent, and a quadratic equation’s roots come from the discriminant formula.
These tools show the working alongside the answer: roots and scientific notation for exponents, the discriminant and vertex for quadratics.
Exponent CalculatorLog CalculatorQuadratic Formula Calculator
Frequently Asked Questions
Can I use the maths tools for homework?
Yes. They are ideal for checking answers and seeing how a formula works; every page includes the formula and a worked example.
How precise are the results?
Results show up to eight significant digits; very large and very small numbers switch to scientific notation.