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Free calculators for finance, salary, real estate, math and more. No account needed, no ads — just results.
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Featured Calculators
Start with the most useful calculators for finance, percentages, and dates.
VAT Calculator
Free VAT calculator to add VAT to a net price or extract VAT from a gross price. Use common preset rates or enter a custom VAT percentage for your country, product or special case.
Loan Monthly Payment Calculator
Calculate your loan monthly payment, total interest and total repayment instantly. Useful for mortgages, personal loans, car loans and credit simulations with optional insurance cost.
Compound Interest Calculator
Free compound interest calculator to project investment growth over time. Estimate your final balance, total interest and effect of monthly contributions with annual, monthly or daily compounding.
Margin Calculator
Calculate gross profit, profit margin and markup from cost and selling price. Use this online margin calculator for retail pricing, ecommerce products, wholesale offers and business planning.
ROI Calculator
Calculate return on investment (ROI), net profit and investment multiple instantly. Useful for marketing campaigns, ecommerce, property, startups, equipment purchases and business decisions.
Break-Even Calculator
Calculate break-even point in units and revenue from fixed costs, selling price and variable cost. Useful for pricing strategy, forecasts, business plans and profitability analysis.
Percentage Calculator
Free percentage calculator to find a percent of a number, calculate percentage change and see what percent one value is of another. Useful for finance, school, discounts, statistics and everyday calculations.
Inverse Percentage Calculator
Find the original value before a percentage increase or decrease. Perfect for discounts, VAT back-calculation, sale prices, price recovery and reverse percentage problems.
Rule of Three Calculator
Solve proportions instantly with this rule of three calculator. Useful for prices, quantities, recipes, ratios and school math.
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Success is not final, failure is not fatal: it is the courage to continue that counts.
— Winston Churchill
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