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Calculators for everyday life

Loan payments, tips, percentages, BMI, savings, units, dates, pay and more. Type your numbers and get the answer instantly. Nothing is uploaded and nothing needs signing up.

All calculators

Mortgage & Loan Payment

Monthly payment, total interest and payoff time for a mortgage, car loan or personal loan.

Tip & Bill Split

Work out the tip and split the bill evenly between friends.

Percentage

Percent of a number, percent change, what percent is X of Y, and increase or decrease by a percent.

BMI

Body mass index for adults in metric or imperial units, with the healthy weight range for your height.

Compound Interest & Savings

See how savings or an investment can grow with regular deposits and compound interest.

Unit Converter

Convert length, weight, volume, speed, area, temperature and time - metric and imperial.

Age & Date Difference

Exact age, or the time between two dates in years, months, days, weeks and working days.

Hourly to Salary

Convert hourly pay to annual, monthly, weekly and daily pay - or the other way round.

Fuel Cost & Trip

What a road trip will cost in fuel, and the cost per person - metric (L/100 km) or imperial (mpg).

Discount & Sales Tax

Sale price after a discount and tax - or take tax back out of a total.

Guides to help you decide

How to pay off your mortgage faster

Five practical ways to cut years and thousands in interest from a mortgage - with the maths behind each.

Tipping around the world: a quick guide

How much to tip in North America, Europe, Asia and elsewhere - and when not to tip at all.

Compound interest explained simply

What compound interest is, why starting early matters, the rule of 72, and how fees and inflation change the picture.

Percentages made easy: mental maths tricks

Quick ways to work out 10%, 15%, 20%, sale prices and percentage change in your head.

Why DailyCalc?

Most calculator sites bury a simple answer under pop-ups. DailyCalc keeps it plain: a clear form, an instant result, a short explanation of the maths and honest notes on what the number does not include. Every tool works on phones, tablets and large desktop screens, in light or dark mode, and with the keyboard.