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Math & CalcPalaceulators

Quick everyday maths: percentage change, ages, discounts and tips.

Percentage ChangeIncrease or decrease between two numbers Age CalculatorExact age in years, months and days Discount CalculatorSale price and amount saved Tip CalculatorGratuity and per-person split

About everyday math

These tools handle the small calculations that come up daily — comparing two figures as a percentage, working out how old someone is, applying a discount, or splitting a restaurant bill. Each shows the formula so you can check the result by hand.