Everyday Calculators for Money and Home

Free UK and US calculators for take-home pay, IR35, energy running costs, paint and flooring, fuel, oven temperatures, dates and supermarket unit prices.

Salary & Paycheck

UK take-home pay, HMRC income tax bands, US paycheck with 401(k), and net wage projections.

• UK Take-Home Pay Calculator

  Work out your UK take-home pay after Income Tax, National Insurance, pension and student loan for 2026/27, per year, month and week.

• IR35 Calculator

  Compare your take-home pay inside and outside IR35 for any day rate, using 2026/27 tax, National Insurance and dividend rates.

• US Paycheck Calculator

  Estimate US take-home pay per paycheck after 2026 federal tax, Social Security, Medicare, 401(k), state income tax and state payroll deductions such as SDI.

• Pro Rata Salary Calculator

  Work out your pro rata salary from a full-time figure by hours or days a week, with monthly and weekly pay and pay for part of a year.

• Redundancy Pay Calculator

  Work out your UK statutory redundancy pay from your age, years of service and weekly pay, with the 2026/27 weekly cap and a year-by-year breakdown.

• Canada Income Tax Calculator 2026

  Work out your 2026 take-home pay in any Canadian province or territory, after federal and provincial tax, CPP or QPP and EI.

• Ontario Severance Pay Calculator

  Work out your minimum termination pay and severance pay under Ontario's Employment Standards Act, with the weeks owed, vacation pay, key dates and exclusions.

• UK Tax Code Checker

  Type in your tax code to see what each number and letter means, spot emergency, BR and K codes, and compare your tax with 1257L for 2026/27.

• Second Job Tax Calculator

  See the tax and National Insurance on a second job each payday for 2026/27, what you will owe or get back after 5 April, and if splitting your allowance helps.

• Bonus Tax Calculator

  Work out how much of a UK bonus you keep after Income Tax, National Insurance and student loan in 2026/27, and what your payslip looks like the month it is paid.

• Overtime Calculator

  Work out a week of overtime pay at time and a half or double time under US federal, California, Ontario or UK contract rules, shown day by day.

• Maternity Pay Calculator

  Work out Statutory Maternity or Paternity Pay for 2026/27 from your due date and pay, with a week-by-week table, key dates and eligibility checks.

• Statutory Sick Pay Calculator

  Work out Statutory Sick Pay under the April 2026 rules: £123.25 a week or 80% of pay from day one, per day and week, and when your 28 weeks run out.

• EI Benefits Calculator

  Estimate your Employment Insurance: weekly EI at 55% up to $729, how many weeks you get from your hours and regional rate, and maternity and parental pay.

• Universal Credit Calculator

  Estimate your monthly Universal Credit for 2026/27, see how much you lose when you earn more, and check the benefit cap, savings rules and work allowance.

• Pay Rise Calculator

  See how much more you take home from a pay rise or raise after tax, and whether it beats inflation. UK 2026/27 and US 2026 rules.

• Self-Employed Tax Calculator

  Work out the tax on self-employed or side hustle profit in the UK, US or Canada, how much to put aside each month and when the payments are due.

• Job Offer Comparison Calculator

  Compare two or three job offers side by side after tax, pension, benefits, commuting and time off. UK 2026/27, US 2026 and Canada 2026 rules.

• US Capital Gains Tax Calculator

  Work out 2026 federal tax on a gain from stocks, crypto, a rental or your home: 0%, 15% or 20% long term, ordinary rates short term, plus the 3.8% NIIT.

• Capital Gains Tax Calculator

  Work out UK Capital Gains Tax for 2026/27 on shares, a second home, buy-to-let, crypto or a business, with the £3,000 allowance, 18% and 24% rates and deadlines.

• No Tax on Overtime Calculator

  Work out your no tax on overtime deduction for 2025 to 2028: the qualified FLSA premium, the $12,500 or $25,000 cap, the MAGI phase-out and the tax you save.

Everyday Money & Saving

Percentage arithmetic, dining tip splitters, compound interest projections, and hourly wage converters.

• Percentage Calculator

  Work out X% of a number, what percentage one number is of another, percentage increase or decrease, and a discounted price.

• Tip Calculator and Bill Splitter

  Add a tip to a restaurant bill and split it evenly between any number of people. Pick 10%, 12.5%, 15%, 18% or 20% and see what each person pays.

• Compound Interest Calculator

  See how savings grow with compound interest. Enter a starting deposit, a monthly top-up, an interest rate and the number of years.

• Salary to Hourly Calculator

  Convert an annual salary, monthly pay or hourly wage into hourly, weekly, monthly and yearly figures, based on the hours you work each week.

• Mortgage Overpayment Calculator

  See how much interest and time you save by overpaying your mortgage each month or paying a lump sum. Side-by-side balance table included.

• Mortgage Affordability Calculator

  Estimate how much you could borrow for a mortgage from one or two incomes, your monthly commitments and your deposit, using income multiples.

• Buy to Let Mortgage Calculator

  Estimate buy-to-let mortgage payments, loan-to-value, gross rental yield and the rental cover test, plus the largest loan your rent could support.

• Child Maintenance Calculator

  Estimate weekly, monthly and yearly child maintenance using the Child Maintenance Service rates for England, Scotland and Wales, including shared care.

• Mortgage Calculator

  Work out monthly mortgage payments in the UK, US or Canada, with total interest, loan-to-value, US taxes and insurance, and Canadian half-yearly compounding.

• TFSA Contribution Room Calculator

  Estimate how much you can put in your TFSA in 2026 from the year you turned 18 or moved to Canada, your contributions and your withdrawals.

• Credit Card Payoff Calculator

  See how long it takes to clear a credit card and the interest you pay, with minimum payments, a fixed amount, a target date or a 0% balance transfer.

• Mortgage Recast Calculator

  See your new monthly payment after a lump sum and a mortgage recast, the interest saved, the fee break-even and how it compares with keeping the same payment.

• Investment Calculator

  See what your investments could grow to after fund fees and inflation, or work out how much to invest each month to reach a target. Works in £, $ or C$.

• Retirement Calculator

  Project your pension or 401(k) pot at retirement, the income it could pay to age 95 and the age your money runs out, with State Pension, Social Security or CPP.

• Dividend Calculator

  Work out your dividend income now and in future, with dividend growth, share price growth and dividend reinvestment (DRIP). Shows yield on cost and a yearly table.

• Coast FIRE Calculator

  Find your FIRE number and your Coast FIRE number: the amount invested today that could grow to fund retirement with no more saving. See the age you would reach it.

• CPP Calculator

  Estimate your Canada Pension Plan retirement pension at every start age from 60 to 70, with break-even ages and lifetime totals in Canadian dollars.

• OAS and GIS Calculator

  Estimate your Old Age Security pension, the OAS clawback on higher incomes and a check on the Guaranteed Income Supplement, in Canadian dollars.

• RRSP Tax Refund Calculator

  See how much income tax an RRSP contribution saves in your province for 2026, your marginal rate and your RRSP deduction limit, in Canadian dollars.

• RRIF Withdrawal Calculator

  Work out your RRIF minimum withdrawal by age, project your balance year by year and see the tax withheld on RRIF and RRSP withdrawals, in Canadian dollars.

• Prorated Rent Calculator

  Work out prorated rent when you move in or out part way through a month, comparing actual days, a 365-day year and a 30-day month side by side.

• Debt Payoff Planner

  Plan how to clear several debts: compare avalanche, snowball and your own order, and see your debt-free date, total interest and when each debt is cleared.

• Stamp Duty Calculator

  Work out stamp duty on a UK home: SDLT in England and NI, LBTT in Scotland and LTT in Wales, with first-time buyer relief and second home rates.

• Land Transfer Tax Calculator

  Work out the land transfer tax you pay when you buy a home in Canada, with Toronto MLTT, BC first-time and new build exemptions and Quebec welcome tax.

• Council Tax Calculator

  Work out your 2026/27 Council Tax for any band and council in England, Wales or Scotland, with single person discount, disabled reduction and monthly payments.

• Canada Child Support Calculator

  Estimate monthly child support under the Federal Child Support Guidelines using the 2025 tables for every province and territory, with shared parenting set-off and special expenses.

• US Child Support Calculator

  Estimate guideline child support in Texas, Florida, California, Illinois or Indiana from both parents' income, overnights, health insurance and childcare.

• Scam Recovery Planner

  Sent money to a scammer? Get an ordered, dated plan for the UK or US: who to call first, the official numbers, and the real deadlines for claims and disputes.

• Complaint Route Finder

  A company won't sort out your problem? See who to complain to next in the UK or US, how long to wait, the deadline to escalate and a letter to send.

• Scam Message Checker

  Paste a text, email or WhatsApp message to see which scam warning signs it shows, each with its official UK or US source. It runs in your browser.

• Data Request Letter Generator

  Write a subject access request or data access letter for the UK, California or Canada, see the date the reply is due and get a chaser if it is late.

• Tax-Free Childcare Calculator

  Work out your Tax-Free Childcare top-up, the free hours you can get in England and what childcare costs you after help, with a Universal Credit comparison.

Home, Energy & DIY

Appliance electricity running costs (kWh), paint room coverage estimators, and flooring box calculators.

• Appliance Running Cost Calculator

  Work out what any electrical appliance costs to run per hour, day, month and year, starting from the current Ofgem price cap rate.

• Paint Calculator

  Work out how much paint you need for a room in litres, with doors and windows taken off and the right mix of 5L and 2.5L tins.

• Flooring Calculator

  Work out how much laminate, vinyl, wood or tile flooring you need, how many packs to buy and what it will cost, with an allowance for offcuts.

• Concrete Calculator

  Work out how much concrete you need for a slab, footing, post holes or steps in m³ or cubic yards, and how many pre-mixed bags to buy.

• Square Footage and Square Metre Calculator

  Work out floor area in square metres, square feet and square yards for one room or a whole house, from metric or feet and inches, with a cost estimate.

• BTU Calculator

  Find the air conditioner size a room needs in BTU per hour and kW, using the ENERGY STAR sizing chart, plus a BTU, kW and watts converter.

• Roof Pitch Calculator

  Work out roof pitch as x in 12, degrees and percentage, plus rafter length with overhang, roof area in m² and ft², and roofing squares.

• Stair Calculator

  Work out risers, treads, riser height, total run, stair angle and stringer length, then check them against UK, US IRC or Canadian stair rules.

• Cubic Yard Calculator

  Work out cubic yards and cubic metres of topsoil, mulch, compost, sand or gravel for beds and paths, with bags needed and an optional cost.

• Cubic Feet Calculator

  Work out cubic feet for boxes, rooms, fridges and tanks from inches, feet, cm or metres, with cubic metres, litres and US and UK gallons.

• Gravel Calculator

  Work out how much gravel, crushed stone or sand you need in cubic yards, m³, US tons and tonnes, with bulk bags and cost, using cited densities.

• Asphalt Calculator

  Work out asphalt or tarmac tonnage for a driveway or path from its area and compacted thickness, in US tons and tonnes, with a cost estimate.

• Energy Tariff and Bill Checker

  Check if a new energy tariff is cheaper for your usage, find the break-even kWh and exit fee payback, or see exactly why your bill went up.

Car, Fuel & Commuting

Commute petrol expenses, road trip fuel cost sharing, and UK/US MPG unit economy converters.

• MPG Converter

  Convert fuel economy between UK MPG, US MPG, litres per 100km and kilometres per litre. Type one figure and see all four.

• Car Tax Calculator

  Check UK car tax (VED) for 2026/27 by registration date, CO2 and list price, including the first-year rate, the £440 supplement and Direct Debit costs.

• Company Car Tax Calculator

  Work out UK company car tax for 2026/27 and 2027/28 from the list price, CO2, electric range and your tax band, plus employer Class 1A NIC.

• Car Finance Calculator

  Work out monthly payments on PCP, hire purchase or a car loan from the price, deposit, APR and term, with total interest and a yearly balance table.

• Fuel Cost Calculator

  Work out the fuel cost of a trip or your commute in miles or km, and compare a petrol or diesel car with an electric car per trip, month and year.

Shopping & Supermarket Deals

Unit price comparison across grams, ml, and packs to reveal which supermarket deal is truly cheaper.

• Unit Price Comparison Calculator

  Compare two products by unit price to see which is better value. Enter each price and pack size in g, kg, ml, litres or items.

• Canada Sales Tax Calculator (GST, HST, PST, QST)

  Add GST, HST, PST or QST to a price, or take the tax out of a total, for any Canadian province or territory, with the 2026 rates.

• US Sales Tax Calculator by State

  Add sales tax to a price or take it out of a total for any US state, with the 2026 state rate, an editable local rate and a price-before-tax reverse mode.

Time, Age & Calendar

Chronological age calculator, birthday countdown, and working business days between dates.

• Age Calculator

  Find your exact age in years, months and days from your date of birth, plus total days and weeks lived and a countdown to your next birthday.

• Days Between Dates Calculator

  Count the calendar days, working days and weekend days between two dates, and see the gap in weeks and days.

• Holiday Entitlement Calculator

  Work out your UK annual leave: statutory holiday in days or hours, part-time and part-year entitlement, irregular hours at 12.07%, and NHS contracts.

Health & Fitness

Health and fitness calculators built on NHS, EFSA, ADA and peer-reviewed figures: BMI, body fat, FFMI, A1C, water intake, steps, due date and 1RM.

• BMI Calculator

  Work out your adult BMI in metric or imperial, see which NHS category it falls in and the healthy weight range for your height.

• Due Date Calculator

  Estimate your baby's due date from your last period, conception date or IVF transfer, and see how many weeks pregnant you are today.

• One Rep Max Calculator

  Estimate your one-rep max (1RM) from any weight and reps using the Epley and Brzycki formulas, in kg or lb, with a percentage table.

• Water Intake Calculator

  Work out how much water to drink a day from EFSA and US National Academies reference intakes, in litres, ml, fl oz and glasses.

• Steps to Miles Calculator

  Convert steps to miles and kilometres using your measured step length or the common 2,000 steps a mile estimate, with optional calories.

• A1C Calculator

  Convert HbA1c between % and mmol/mol, turn A1C into estimated average blood sugar in mg/dL or mmol/L, and see UK and US ranges.

• FFMI Calculator

  Work out your fat-free mass index (FFMI), normalised FFMI, lean mass and fat mass from your height, weight and body fat percentage.

• Body Fat Calculator

  Estimate your body fat percentage with the US Navy tape method from your height, neck, waist and (for women) hip measurements, plus fat mass.

Lifestyle & Everyday Helpers

Cooking and life-admin calculators: oven temperature and gas mark conversions, recipe scaling, and points calculators for moving to Canada.

• Recipe Scaler

  Scale any recipe up or down by servings. Type in your ingredients and see every amount multiplied, with the units kept as you wrote them.

• Oven Temperature Converter

  Convert oven temperatures between gas mark, conventional °C, fan oven °C and °F, using the gas mark chart UK recipes follow.

• CRS Score Calculator

  Estimate your Express Entry CRS score out of 1,200 from IRCC's point tables, with IELTS, CELPIP, PTE Core, TEF and TCF converted to CLB for you.

• BC PNP Points Calculator

  Estimate your BC PNP Skills Immigration registration score out of 200 from the official guide, with wage points, CLB conversion and the latest draw cut-offs.

Maths & Science

Free maths calculators for homework, work and everyday sums: fractions, averages, LCM and GCF, scientific notation and more, with the working shown.

• LCM Calculator

  Find the lowest common multiple of two or more whole numbers, with the working shown by prime factorisation and by the GCD method.

• GCF Calculator (GCD and HCF)

  Find the greatest common factor (GCF), also called the GCD or HCF, of two or more whole numbers with Euclid's algorithm and prime factors.

• Average Calculator

  Paste a list of numbers to get the mean, median, mode, range, count and sum, with the working, plus an optional weighted average.

• Fraction Calculator

  Add, subtract, multiply and divide fractions and mixed numbers, then simplify and convert the answer to a mixed number, decimal and percentage.

• Scientific Notation Calculator

  Convert numbers to and from scientific, E and engineering notation, round to significant figures, and add, subtract, multiply or divide with steps.

• Midpoint Calculator

  Find the midpoint between two points in 2D or 3D, the distance between them and the gradient, or find a missing endpoint, with the working.

• Percent Error Calculator

  Work out the percent error between a measured value and the true value, with absolute and relative error, a signed option and the working.

Grades & Education

Grade, GPA and exam score calculators for students in the US, Canada and the UK, including final grade and weighted grade calculators.

• UCAS Points Calculator

  Add your A levels, BTECs, Highers, EPQ or IB grades and see your total UCAS Tariff points, using the official UCAS tables.

• Final Grade Calculator

  Work out the score you need on your final exam to reach the course grade you want, or see what overall grade a final score gives you.

• Weighted Grade Calculator

  Add your assignments or grade categories with their weights to see your weighted course grade and letter grade, using %, points or letters.

• GPA Calculator

  Work out your unweighted and weighted GPA on the US 4.0 scale, with honours and AP bonuses, credits and cumulative GPA. Custom scales too.