58 tools · no upload, ever
Free online calculators
Finance, insurance, health and everyday calculators with clear, accurate results.
100% private Instant Unlimited No sign-up
Finance & loans 10
Mortgages, loans, savings, investing and currency.
Mortgage calculatorUse this free mortgage calculator in your browser to estimate monthly payments with taxes, insurance and PMI, plus a full amortization breakdown. No upload, no sign-up.Compound interest calculatorFree compound interest calculator with instant results. Add monthly contributions, choose any compounding frequency, and see a year-by-year growth breakdown privately.Loan calculatorFree loan calculator with instant EMI, total interest, and a year-by-year breakdown. Private, runs in your browser, no sign-up, works in any currency.Savings goal calculatorUse this free savings goal calculator in your browser to find the monthly contribution needed to hit a target by a deadline, with growth. No upload, no sign-up.ROI calculatorFree ROI calculator with instant, accurate results. Enter your cost and final value to get net profit, total return on investment, and annualized ROI (CAGR), privately.Retirement calculatorFree retirement calculator that projects your nest egg instantly. Enter your age, savings, and monthly contribution to see growth year by year, privately in your browser.Debt payoff calculatorFree debt payoff calculator comparing the snowball and avalanche methods instantly. See months to debt-free and total interest for each, and which saves more.Credit card payoff calculatorFree credit card payoff calculator. See how many months to clear your balance and the total interest you'll pay, or the payment needed to be debt-free by a date.Car loan calculatorFree car loan calculator with instant monthly payment, total interest, and full auto loan cost. Factors in down payment, trade-in, and sales tax. Private, any currency.Currency converter with live exchange ratesFree currency converter with live exchange rates. Convert any amount between dozens of currencies instantly and see the exact rate used. Private, no signup.
Tax & income 4
Estimate income tax, deductions and take-home pay.
Salary calculatorFree salary calculator and pay converter. Turn a wage between hourly, daily, weekly, bi-weekly, monthly, and annual, with unadjusted and holiday-adjusted amounts.GST calculatorFree GST, VAT, and sales tax calculator. Add tax to a net price or remove it from a gross price, with presets for UK, Australia, India, Canada, NZ, and more.US federal income tax calculator (2026)Free, private US income tax calculator for 2026. Enter your gross income and filing status to instantly estimate federal tax, FICA, and take-home pay.UK income tax calculator (2026/27)Free UK income tax calculator for 2026/27. Enter your gross salary to instantly see income tax, National Insurance and take-home pay, privately in your browser.
Health & body 3
Body and health metrics with clear, accurate results.
Calorie calculatorFree calorie and TDEE calculator. Enter age, sex, height, weight, and activity to find your BMR, maintenance calories, weight-loss and gain targets, plus macros.Due date calculatorFree pregnancy due date calculator. Estimate your due date from your last period, conception, IVF transfer, or ultrasound, and see how far along you are today.BMI calculatorFree BMI calculator with instant, accurate results. Enter height and weight in metric or imperial to find your body mass index and WHO weight category.
Everyday 5
Quick, useful maths for day-to-day life.
Date calculatorFree date calculator. Find the days, weeks, months, and years between two dates, or add and subtract days from a date, with an option to count business days only.Percentage calculatorFree percentage calculator that works out percentages three ways with instant, accurate results as you type. Find X% of Y, percent of a total, and change.Tip calculatorFree tip calculator that instantly works out the tip and total from your bill and tip percentage, then splits the cost evenly between any number of people.Discount calculatorFree discount calculator that instantly shows the final sale price and how much you save. Enter a price and percent off, get accurate results in your browser.Age calculatorFree age calculator that finds your exact age in years, months and days from any birth date, plus total days lived. Instant, accurate results for any date.
Clear, accurate calculators for money, health and everyday questions. From mortgages and loans to BMI and tip splitting, these free calculators give you a headline number plus a readable breakdown — instantly and privately in your browser.
Nothing you enter is uploaded or stored. Financial and health calculators are for information and education only and are not professional advice.
Frequently asked questions
Are these calculators free?
Yes, every calculator is free to use with no account required.
Is my data saved or sent anywhere?
No. Calculations run in your browser and the values you enter are never uploaded or stored.
Are the results financial or medical advice?
No. Finance and health calculators are for general information and education only — consult a qualified professional for advice.
How accurate are the calculations?
The math uses precise, well-tested formulas. Real-world figures can vary with rates, fees and rules specific to your situation and country.