Instantly add or remove VAT from any price. Works for standard, reduced and zero rates.

Find your net pay after Income Tax, National Insurance and pension deductions.

Convert your annual salary into an hourly rate, or the other way round.

Calculate how much Statutory Sick Pay you or your employee may be entitled to.

Estimate the Inheritance Tax due on an estate using UK thresholds and reliefs.

Estimate the Special Guardianship Allowance you may be able to claim.

Calculate monthly repayments for Plan 1, 2, 4 and 5, plus how long until your loan is written off.

Work out monthly repayments and total interest on any personal loan.

Estimate your monthly mortgage payments based on price, deposit, rate and term.

Calculate SDLT, LBTT and LTT for England, Scotland and Wales, including first-time buyers and additional homes.

Work out how much rent you can realistically afford using the 30% rule.

See how savings and investments grow over time with compound interest.

Calculate the return on investment for a purchase, project or business decision.

See how inflation changes the value of money in the UK over the years.

Check whether your pay has kept up with inflation over time.

Find the sale price and how much you save after a percentage discount.

Work out the tip and split the bill fairly between everyone.

Convert GBP to major world currencies for travel, shopping or sending money abroad.

Estimate the cost of building a house in the UK based on size and specification.

Estimate your property's Energy Performance Certificate rating and get tips to improve it.

See how much any appliance costs to run per day, week or month.

Calculate the cost of charging an electric vehicle at home or at a public charger.

Estimate petrol or diesel costs for any journey using your car's MPG.

Work out what eBay will charge on your sale and your actual profit after fees.

Calculate PayPal's fees for UK sellers, or how much to charge to receive a set amount.

Price your items right and see exactly what buyers will pay in total on Vinted.

Calculate your Body Mass Index using metric or imperial units.

Get an estimate of life expectancy based on UK statistics and your details.

Find the best bedtime or wake-up time based on natural sleep cycles.

Estimate how much water you should drink each day.

Work out the percentage of body weight you have lost.

Convert kilograms to stone and pounds instantly.

Convert kilograms to pounds quickly and accurately.

Convert ounces to grams, ideal for recipes and postage.

Convert grams to millilitres for different ingredients and liquids.

Convert kilograms to litres based on the density of the substance.

Convert UK pints to litres in one click.

Convert UK pints to millilitres instantly.

Convert litres to UK gallons, handy for fuel and MPG.

Convert speeds between kilometres per hour and miles per hour.

Convert tons to kilograms for freight, building and shipping.

Convert cubic metres to tonnes for sand, gravel, soil and other materials.

Find the moment each day when sunlight on Earth matches the dim glow on Pluto.

Convert between joules, electron volts and their multiples.

Calculate the exact mass of a molecule from its chemical formula.

Calculate relative atomic mass from isotope data.

Work out scaled dimensions for models, drawings and maps.

Scale ingredients and timings for a Christmas cake to fit any tin size.

Work out the cooking time for your gammon joint based on its weight.

Plan food, drink and supplies for your Bonfire Night get-together.

Generate spooky names and costume ideas for Halloween.

Find the right stencil size for your pumpkin before you start carving.

Count down to Halloween and plan your event timeline.

Keep your Halloween party spending under control.

Estimate how much food and drink you need for your guests.

Work out how much sweets to buy for trick-or-treaters.

Look up any UK postcode to find address, region and location details.

Count your till by entering the quantity of each note and coin.

Calculate percentages, increases, decreases and differences.

Count days between dates while taking UK bank holidays into account.

Estimate your final UK degree classification from your module marks.

Practise for the CSCS Green Card health and safety test.

Track your allowed days in the Schengen Area and avoid overstaying.