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Calculators that get to the point
Solve one specific thing and get on with your day. Always showing where each figure comes from and what has been assumed.
- 10tools
- 4with a chart
- 6categories
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What you used last
Money
Compound interest, loans, mortgages and savings goals, with a breakdown of where every figure comes from and a chart of how it evolves.
- Compound interest calculator Work out how much your savings will grow with compound interest and regular contributions, and how much of that total came from interest rather than from you.
- Loan payment calculator Work out the monthly payment on a loan or mortgage and, above all, how much you will end up paying in interest.
Dates and time
Days between dates, ages, working days, deadlines and hours worked. Instant results, no sign-up.
Cars and travel
Real fuel economy, what a trip costs, cost per mile and splitting the bill between everyone in the car.
Percentages and maths
Discounts, increases, proportions, VAT, averages and grades. Everyday maths, properly explained.
- Percentage calculator Enter a percentage and a number. Instead of making you pick an operation first, we give you all four answers at once.
- Percentage change calculator From one value to another, how much has it gone up or down in percent? And how many times one is of the other.
- Stacked discount calculator 50% and then an extra 20% is not 70%. Here you see the real final price and the single discount you are actually being given.
- What percentage one amount represents Two numbers, and we tell you what percentage the first is of the second. With the remainder and the ratio in plain language.
- Rule of three calculator Solve a direct or inverse proportion. We show the working, not only the result.
Missing one?
The ones here came from real problems. If yours is not, tell us: it is the best clue about what to build next.