Percentages, loans, interest, VAT and everyday maths.
What is X% of Y, X is what % of Y, and percentage change — all in one place.
The increase or decrease between two values, as a percentage and an amount.
Exact age in years, months and days — plus a countdown to the next birthday.
Body mass index in metric or imperial, with the healthy range for your height.
Add VAT to a net price or peel it out of a gross one, with common country rates.
Final price and money saved after a discount — including stacked second discounts.
Tip, total and per-person share — split any bill in seconds.
Monthly payment, total repaid and total interest for any loan, with an amortisation preview.
Monthly mortgage payment from price, deposit, rate and term — with loan-to-value shown.
How savings grow with compounding — final balance, contributions and interest split out.
What a trip costs in fuel, from distance, consumption and price per litre.
How many units you must sell before a product turns a profit.