Calculator

8 tools available

Calculate percentages, percentage change and increases or decreases, with the formula and steps shown.

Convert between units across 12 categories, including length, weight, temperature, area and volume.

An online scientific calculator with trigonometry, logarithms, exponents and factorials.

Add, subtract, multiply, divide and simplify fractions, with mixed-number and decimal output.

Paste a list of numbers to get the mean, median, sum, count, and min/max

A metric and imperial BMI calculator showing the adult BMI category, for reference only.

Calculate a weighted GPA from course grades and credits, on a common 4.0 scale by default — results are an estimate

Calculate the final exam score needed to reach a target course grade, with a clear explanation when the target is unreachable or already secured