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Maths Calculator Tools

Interactive calculators with step-by-step explanations for all Cambridge topics.

x²

Quadratic Equation Solver

Find roots using the quadratic formula

$$x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$$

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Pythagoras Calculator

Find any side of a right triangle

$$a^2 + b^2 = c^2$$

Find

Side 1

Side 2

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Trigonometry Calculator

SOH-CAH-TOA and inverse functions

Function

Value

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Statistics Calculator

Mean, median, mode, range & more

Data values (comma-separated)

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HCF & LCM Calculator

Highest common factor & lowest common multiple

Number 1

Number 2

Fraction Calculator

Add, subtract, multiply, divide fractions

n₁

d₁

n₂

d₂

Percentage Calculator

Percentages, increase/decrease, reverse %

Original value

Percentage (%)

Type

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Function Graph Plotter

Plot any polynomial function interactively

Function (use x as variable, e.g. x*x - 3*x + 2)

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Standard Form Converter

Convert between standard form and ordinary numbers

Ordinary → Standard Form

Standard Form → Ordinary

a ×

10 ^

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Ratio & Proportion

Share amounts and solve proportion problems

Total amount

Ratio (e.g. 2:3:5)