Everyday Calculators
Quick, reliable answers for the sums that come up in daily life — at the shop, in a restaurant or at school.
Dates and ages
Looking for an age or date calculation? Those live in the Time & Date section, including the age calculator, days between dates and business days calculator.
Shopping and prices
Straightforward arithmetic for prices — these tools do not give financial advice. Interest, loans and margins are in money math.
- Discount CalculatorSale price and savings after a percentage discount, including stacked discounts.
- Sales Tax / VAT CalculatorAdd sales tax or VAT to a price, or remove it from a tax-inclusive total.
- Unit Price CalculatorCompare two package sizes to see which is cheaper per unit.
- Markup CalculatorSelling price from cost and markup, or markup and margin from cost and price.
- Tip CalculatorTip amount, total and each person’s share of the bill.