A little clarity for everyday life.
Everyday Maths is a small collection of free tools for the calculations that come up in everyday life: checking a discount, comparing two numbers, counting days, or working out an average.
An answer you can understand
Every calculator shows its formula, a worked result, and examples. You should be able to follow the calculation with a pencil as easily as you can use the tool.
Simple by design
No account, no subscription, and no need to send your numbers anywhere. The calculators run in your browser. We keep the pages lightweight so finding an answer is quick, even on a slower connection.
Accuracy and limitations
These are general arithmetic tools. The pages explain their assumptions, input limits, and rounding. Time tools do not model time zones; discounts exclude taxes and fees. For a consequential decision, check the method and confirm the result independently.