Browse by category
Eight categories, from mortgages to paint — pick one to see its calculators.
Finance & Tax Money, tax, and investing 2 calculators Business & Startup Start and run a business 3 calculators Freelance & Gig Work For freelancers and gig workers 1 calculator Real Estate Buying and owning property 1 calculator Health & Fitness Your body, by the numbers 2 calculators Construction & Home Building and renovating 2 calculators E-Commerce & Marketing Selling online 1 calculator Everyday Life Daily life, calculated Coming soon
Popular calculators
The calculators people reach for most.
Mortgage Payment Calculator Calculate your monthly mortgage payment from the loan amount, interest rate, and term — plus total interest and total paid over the life of the loan. Freelance Tax Calculator Estimate your freelance tax from annual income, business expenses, and your effective tax rate — and see what you actually keep after tax. Compound Interest Calculator See how your savings grow with compound interest — enter the principal, annual rate, years, and compounding frequency. Take-Home Pay Calculator Work out your net take-home pay from your gross salary, tax rate, and other deductions — annual and monthly. BMI Calculator Calculate your body mass index (BMI) from your weight and height — in metric or imperial units — and see which category you fall into. Calorie Calculator Estimate your daily calorie needs with the Mifflin-St Jeor equation — BMR plus your activity level, for weight maintenance, loss, or gain. Profit Margin Calculator Calculate your profit, profit margin, and markup from revenue and cost — and learn the difference between margin and markup.
All calculators
Type in the search box above to filter this list.
Mortgage Payment Calculator Calculate your monthly mortgage payment from the loan amount, interest rate, and term — plus total interest and total paid over the life of the loan. Freelance Tax Calculator Estimate your freelance tax from annual income, business expenses, and your effective tax rate — and see what you actually keep after tax. Business Startup Cost Calculator Add up the one-time and monthly costs of starting a business — and see your first-year total and monthly burn before you spend anything. Break-Even Calculator Find how many units you must sell to cover your costs — from fixed costs, variable cost per unit, and your selling price. Compound Interest Calculator See how your savings grow with compound interest — enter the principal, annual rate, years, and compounding frequency. Take-Home Pay Calculator Work out your net take-home pay from your gross salary, tax rate, and other deductions — annual and monthly. BMI Calculator Calculate your body mass index (BMI) from your weight and height — in metric or imperial units — and see which category you fall into. Calorie Calculator Estimate your daily calorie needs with the Mifflin-St Jeor equation — BMR plus your activity level, for weight maintenance, loss, or gain. Paint Calculator Work out how much paint you need from the wall size, number of walls, and coats — in gallons or litres, with a buy-extra allowance. Tile Calculator Calculate how many tiles you need for a floor or wall — from the area and tile size, including a 10% allowance for cuts and breakage. Ad ROI Calculator Calculate your advertising return on investment (ROI) and ROAS from ad spend and revenue — and see whether your ads actually made money. Profit Margin Calculator Calculate your profit, profit margin, and markup from revenue and cost — and learn the difference between margin and markup.
No calculator matches that search — try “mortgage”, “BMI”, or “tax”.