Calculators

Project a workplace pension including the employer match.

Find the true APR once fees are included in the cost of a loan.

Add or subtract days from any date.

Work out an exact age in years, months and days.

See a year-by-year breakdown of interest and principal on a loan.

Find the future and present value of a regular payment stream.

Find the area of a rectangle, triangle, circle or trapezoid.

Convert square metres, feet, acres, hectares and miles.

Find the mean, median, minimum and maximum of a list of numbers.

Calculate body mass index and see which range it falls in.

Estimate your basal metabolic rate and daily calorie needs.

Estimate blood alcohol concentration from drinks and time.

Estimate body fat percentage from tape measurements.

Find how many units you must sell to cover your costs.

See the monthly cost and total interest on a car loan.

Estimate your yearly CO2 from driving, electricity and flights.

Work out sales commission and total earnings.

See what savings grow to with compound interest.

Work out how much concrete a slab needs.

Convert cups, tablespoons, teaspoons, millilitres and more.

Count the days until (or since) any date.

Find out how long a card balance takes to clear, and the interest cost.

Convert bytes, KB, MB, GB, TB and bits.

Count the days, weeks and months between two dates.

See how long a fixed monthly payment takes to clear a debt.

Roll any number of dice with any number of sides.

See the sale price and how much a discount saves you.

Work out dividend income and yield from your holding.

Work out a deposit and the loan amount left over.

Calculate an equated monthly instalment for any loan term in months.

See what an appliance costs to run per day, month and year.

Convert joules, calories, watt-hours and BTU.

Raise any number to any power.

Work out maturity on a fixed or recurring deposit.

Add, subtract, multiply or divide two fractions.

Work out the fuel needed and the cost of a journey.

Convert between mpg, km/l and L/100km.

Find the future or present value of a sum of money.

Find the greatest common factor and lowest common multiple.

Calculate a weighted grade point average from grades and credits.

Work out a weighted grade and what you still need to score.

See an ideal weight for your height plus the healthy BMI range.

See how inflation changes what your money is worth.

Calculate return on investment and the annualised rate.

Convert between mm, cm, m, km, inches, feet, yards and miles.

Work out the monthly payment and total interest on any loan.

Calculate a logarithm in any base, plus ln and log10.

See what a one-off investment grows to.

Split a calorie target into protein, carbs and fat.

Work out profit, markup and margin from cost and price.

Work out mileage reimbursement for a journey.

Estimate a home loan payment from price, deposit, rate and term.

Total up assets and debts to find your net worth.

Convert between binary, octal, decimal, hex and any base to 36.

Enter any two of volts, amps and ohms to find the rest.

Estimate your one-rep max and training percentages.

Calculate overtime pay and total earnings for a week.

Find your likely ovulation date and fertile window.

Work out running pace per kilometre and per mile.

Work out how much paint a room needs.

Estimate take-home pay from gross salary and your deduction rates.

Find a percentage of a number, plus the value with it added or removed.

Work out the percentage increase or decrease between two numbers.

Work out what percentage one number is of another.

Find the perimeter or circumference of common shapes.

Calculate nPr and nCr for any n and r.

Convert watts, kilowatts, megawatts and horsepower.

Estimate a due date from the last period.

Convert between Pa, kPa, bar, psi, atm and mmHg.

Find prime factors and all divisors of a number.

Work out probability, odds and the chance over repeated trials.

Solve ax² + bx + c = 0, including complex roots.

Generate random numbers in any range, with or without repeats.

Simplify a ratio and see it as a decimal and a percentage.

Compare your current loan with a new one and find the break-even point.

Read a resistor's value from its colour bands.

Project your retirement pot and the income it could provide.

Find the square root, cube root or any nth root of a number.

Round a number to any number of decimal places, up or down.

See what a monthly investment grows to over time.

Convert a salary between hourly, daily, weekly, monthly and yearly.

Find out how long it takes to reach a savings target.

Evaluate any arithmetic expression, with roots, logs and trig.

Convert shoe sizes between US, UK and EU.

Calculate simple interest and the total repayable.

Find the best times to wake up based on sleep cycles.

Find slope, distance and midpoint between two points.

Convert km/h, mph, m/s, knots and feet per second.

Split a bill with tip and tax between any number of people.

Calculate standard deviation, variance and mean for a data set.

Find your daily calorie needs and targets for losing or gaining weight.

Find your training heart rate zones.

Convert between Celsius, Fahrenheit and Kelvin.

Work out how many tiles a floor or wall needs.

Add or subtract hours and minutes from a time.

Find the time between two clock times.

Convert a time between any two world time zones.

Work out a tip and split the bill between people.

Find area, perimeter and angles from three sides.

Compare two pack sizes and see which is better value.

Add VAT to a price or work backwards to the net amount.

Find the volume of a box, cylinder, sphere or cone.

Convert litres, millilitres, cups, pints, quarts and gallons.

Work out how much water to drink a day for your weight.

Convert between grams, kilograms, ounces, pounds and stone.

Work out hours worked in a shift, and pay if you add a rate.