Everyday calculators
Exact answers with the working shown, so you can check the maths yourself. 26 free tools, all running in your browser on ClipLime.
Age Calculator
Exact age in years, months and days, with totals and the next birthday.
Open toolArea Converter
Convert between 10 area units, from square millimeters to square miles, with exact results and the working shown.
Open toolBreak-Even Calculator
Break-even units and sales from fixed costs, price and variable cost, with a profit target and a chart.
Open toolCompound Interest Calculator
Compound interest with any compounding frequency, regular deposits, a yearly table, a chart and the effective yearly rate.
Open toolData Storage Converter
Convert bytes, KB, MB, GB, TB, KiB, MiB and bits, and see why drives show less space.
Open toolDate Add and Subtract Calculator
A date plus or minus years, months, weeks and days, with the month end rule explained.
Open toolDate Difference Calculator
The time between two dates in years, months, days and totals.
Open toolDiscount Calculator
Price after a discount, percent off between two prices, the original price, stacked discounts and tax.
Open toolEnergy Converter
Convert joules, kWh, calories, BTU and therms with exact factors.
Open toolFuel Economy Converter
Convert US and UK mpg, km/L and L/100 km, including the reciprocal maths.
Open toolLength Converter
Convert between 20 length units, from nanometers to light years, with exact results and a feet and inches calculator.
Open toolLoan Calculator
Loan payment, total interest, a downloadable payment schedule and the effect of extra payments.
Open toolMargin Calculator
Gross margin from cost and price, the price for a target margin, and the markup that goes with it.
Open toolMarkup Calculator
Markup from cost and price, the selling price for a markup percentage, and the margin that goes with it.
Open toolMortgage Calculator
Mortgage payment with taxes and insurance you enter, total interest, term comparison, extra payments and a CSV schedule.
Open toolPercentage Calculator
Percent of, percent change, increase, decrease and reverse percentages, with the working shown.
Open toolPressure Converter
Convert psi, bar, kPa, atm, mmHg and more with exact factors.
Open toolSimple Interest Calculator
Simple interest, principal, rate or time from the other three, with time in years, months, weeks or days.
Open toolSpeed Converter
Convert mph, km/h, m/s, knots and Mach with exact factors and the working shown.
Open toolTemperature Converter
Convert between Celsius, Fahrenheit, Kelvin, Rankine and Réaumur, with the working and a check for absolute zero.
Open toolTime Duration Calculator
Hours and minutes between two times, totals of durations and clock times moved by a duration.
Open toolTip Calculator
Tip, total and each person's share of a bill, with optional rounding up and a table of other percentages.
Open toolVAT Calculator
Net, VAT and gross amounts at a rate you enter, adding VAT or taking it out of a VAT-inclusive price.
Open toolVolume Converter
Convert between 20 volume units, with US and UK gallons, pints and ounces kept apart, and a side by side view.
Open toolWeight Converter
Convert between 13 weight units, from micrograms to tons, with exact results and a pounds, ounces and stone calculator.
Open toolWorking Days Calculator
Working days between two dates, or a date a number of working days away, with your own days off and holidays.
Open toolPopular in everyday calculators
- Square Feet to Square Meters
- MB to GB
- GB to MB
- Add Days to a Date
- Days Between Dates
- Sale Price Calculator
- Calories to Kilojoules
- MPG to L/100 km
- CM to Inches
- Inches to CM
- Feet to Meters
- Meters to Feet
- KM to Miles
- Miles to KM
- Percentage Increase
- Percentage Decrease
- Percentage Change
- PSI to Bar
- MPH to km/h
- km/h to MPH
- Celsius to Fahrenheit
- Fahrenheit to Celsius
- Hours Between Two Times
- GST Calculator
- Liters to Gallons
- KG to LBS
- LBS to KG
Guides for everyday calculators
All Calculators guides →Calculators
A 50% markup is only a 33% margin, and mixing them up quietly costs you money
Calculators
The monthly payment tells you what you can afford. Total interest tells you what the loan costs
Calculators