All calculators
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Mortgage Repayment Calculator
Work out your monthly mortgage payments and total interest over your term.
VAT Calculator
Add or remove UK VAT from any price in seconds.
UK Salary Take-Home Calculator
Estimate your take-home pay after Income Tax and National Insurance.
Compound Interest Calculator
See how your savings or investments grow over time with compounding.
Loan Repayment Calculator
Calculate monthly repayments and total interest on any personal loan.
Statutory Redundancy Pay Calculator
Estimate your UK statutory redundancy payment based on age and service.
Stamp Duty (SDLT) Calculator
Estimate Stamp Duty Land Tax on residential property purchases.
ISA Growth Projection
Project how your ISA balance could grow with regular contributions.
Pension Pot Projection
Estimate your pension pot at retirement based on contributions.
Self-Employed Tax Calculator
Estimate tax and Class 2/4 NI for self-employed income.
Capital Gains Tax Calculator
Estimate CGT owed on the sale of shares or property.
Inheritance Tax Calculator
Estimate potential inheritance tax liability on an estate.
Credit Card Payoff Calculator
Find out how long it will take to clear a credit card balance.
50/30/20 Budget Planner
Split your income into needs, wants and savings.
Concrete Mix Calculator
Work out cement, sand, aggregate and bag quantities for a pour.
Paint Coverage Calculator
Estimate how many litres of paint and coats you need for a room.
Sand & Cement Render Mix
Calculate render mix ratios for wall rendering jobs.
House Extension Cost Calculator
Estimate a UK extension cost by type, size, region and spec.
Fencing Cost Calculator
Estimate panels, posts and cost for a garden fence.
Insulation U-Value Calculator
Estimate the U-value of a wall or roof build-up.
Roof Tile Quantity Calculator
Work out how many roof tiles you need by area.
Plasterboard Quantity Calculator
Calculate sheets of plasterboard needed for a room.
Skip Size Selector
Find the right skip size for your waste volume.
Fuel Cost & MPG Calculator
Work out trip fuel cost and convert between MPG and L/100km.
Car Finance (PCP/HP) Calculator
Estimate monthly payments for PCP or HP car finance deals.
Road Tax (VED) Estimator
Estimate annual Vehicle Excise Duty for your car.
Car Insurance Estimator
Get a rough estimate of annual car insurance costs.
Speeding Fine Estimator
Estimate a potential speeding fine and penalty points.
EV Charging Cost Calculator
Work out the cost of charging an electric vehicle at home.
Mileage Allowance Calculator
Calculate HMRC-approved mileage allowance for business travel.
Tyre Size Comparison Calculator
Compare two tyre sizes and see the speedometer difference.
Percentage Calculator
Find a percentage of a number, work out percentage change and more.
Standard Deviation Calculator
Calculate mean, variance and standard deviation for a data set.
Quadratic Formula Solver
Solve any quadratic equation ax² + bx + c = 0 step by step.
Ratio Simplifier
Simplify any ratio to its lowest terms.
Matrix Determinant Calculator
Calculate the determinant of a 2x2 or 3x3 matrix.
Unit Circle Angle Finder
Find sine, cosine and tangent for any angle on the unit circle.
Prime Factorisation Calculator
Break any number down into its prime factors.
Logarithm Calculator
Calculate logarithms to any base.
Unit Converter
Convert length, weight and temperature between metric and imperial.
Pounds (lbs) to Stone Calculator
Convert pounds to stone and pounds, or stone and pounds back to lbs, instantly.
KG to Stone Calculator
Convert kilograms to stone and pounds, including decimal kg values.
Pints to ML Calculator
Convert pints to millilitres — UK/imperial pint or US pint.
Litres to Gallons Calculator
Convert litres to UK (imperial) gallons and US gallons side by side.
Grams to ML Calculator
Convert grams to millilitres by ingredient density — water, flour, milk, sugar and more.
KG to Lbs Calculator
Convert kilograms to pounds and back, both ways, instantly.
CM to Feet Calculator
Convert centimetres to feet and inches, or feet and inches back to cm.
CM to Inches Calculator
Convert centimetres to inches and inches back to cm, instantly.
Fahrenheit to Celsius Calculator
Convert Fahrenheit to Celsius and Celsius to Fahrenheit, both ways.
KM to Miles Calculator
Convert kilometres to miles and miles back to km, instantly.
Inch to MM Calculator
Convert inches to millimetres and mm back to inches, instantly.
Stone to KG Calculator
Convert stone and pounds to kilograms, or kg back to stone and pounds.
Earth Curvature Calculator
Calculate how much the Earth curves over a given distance.
Wavelength & Frequency Calculator
Convert between wavelength and frequency for any wave.
Resistor Colour Code Calculator
Decode resistor colour bands into resistance values.
Dilution Calculator (C1V1=C2V2)
Work out dilution volumes for a target concentration.
Moment of Force Calculator
Calculate the turning moment of a force about a pivot.
Escape Velocity Calculator
Calculate escape velocity for a given mass and radius.
BMI Calculator
Calculate your Body Mass Index using metric or imperial units.
Calorie & BMR Calculator
Find your BMR and daily calorie needs for maintenance, loss or gain.
Pregnancy Due Date Calculator
Estimate your baby's due date and current week from your last period.
VO2 Max Estimator
Estimate your VO2 max from recent run times.
Sleep Cycle Calculator
Find the best bedtime or wake time based on 90-minute sleep cycles.
Body Fat % Calculator (Navy Method)
Estimate body fat percentage using the US Navy tape method.
Running Pace Calculator
Convert running pace to finish time for any distance.
Daily Water Intake Calculator
Estimate how much water you should drink per day.
Heart Rate Zone Calculator
Find your training heart rate zones by age.
UK School Year Checker
Find out what school year a child is in based on their date of birth.
University Degree Classification
Estimate your final degree classification from module marks.
Childcare Cost Estimator
Estimate monthly nursery or childcare costs.
Term-Time Only Salary Calculator
Convert a full-year salary to a term-time-only equivalent.
UCAS Tariff Points Calculator
Add up UCAS tariff points from A-level and BTEC grades.
Student Loan Repayment Calculator
Estimate monthly UK student loan repayments by plan type.
GCSE Grade Boundary Checker
Estimate a 9-1 GCSE grade from a raw exam mark.
Age Calculator
Find your exact age in years, months and days from your birthday.
Time & Date Difference Calculator
Calculate the exact duration between two dates and times.
Annual Leave Entitlement Calculator
Work out statutory holiday entitlement for part-time or full-time work.
Working Days Calculator
Count working days between two dates, excluding weekends.
Countdown Calculator
Count down the days, hours and minutes to any future date.
Timezone Converter
Convert a time between UK and international timezones.
Holiday Cost Splitter
Split total trip costs fairly between travellers.
Meal Prep vs Eating Out Savings
See how much you could save each year by meal prepping instead of eating out.
Sunday Roast to Burpees Converter
Find out how many burpees it takes to burn off a Sunday roast.
Height in Double-Decker Buses
Convert your height into double-decker buses stacked on top of each other.
Time Left With Parents Calculator
A thought-provoking estimate of how much time you may have left with your parents.
Greggs Sausage Roll Inflation Tracker
Track how sausage roll prices have crept up over the years.
Beatles Discography Duration
Find out how long it takes to listen to the entire Beatles discography.
Harry Potter Reading Time Estimator
Estimate how long it takes to read the whole Harry Potter series.
Royal Family Wealth Comparison
Compare your savings to the wealth of the Royal Family, just for fun.
Wedding Cost vs House Deposit
Compare the average UK wedding cost to a house deposit.
Netflix Binge Time Calculator
Work out how long it would take to binge your favourite show.