Calculators

Percentages, dates, money and everyday maths, with the formula shown.

Age CalculatorEnter a date of birth to get the exact age today, or change the second date to find the age on any other day.
Discount CalculatorEnter a price and a discount to see what you pay and what you save. Got two prices instead? The second box tells you the percentage off.
Percentage CalculatorSolve the three everyday percentage questions. Type in any row and the answer and formula appear as you type.