Free financial calculators for better decisions
Calculate your savings, loans, taxes, investments and more with free, clear and easy-to-use tools.
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Popular calculators
Free financial tools to calculate and plan
Eight calculator categories, with explained formulas and visible assumptions behind every result.
- SavingsGrow your money with simple and compound interest, goals and emergency funds.7 tools
- Loans & mortgagesPayments, interest, early repayment and debt payoff.8 tools
- SalaryGross to net, payslips, overtime and bonuses.7 tools
- TaxesVAT, income tax, freelancers and businesses.7 tools
- InvestmentsReturns, ROI, dividends and capital gains.7 tools
- BudgetingOrganize personal and household income and expenses.6 tools
- Basic financePercentages, discounts, margins and break-even.7 tools
- RetirementPlan your savings, pension and retirement income.5 tools
Adapted to your country
Currency, taxes and contributions differ by country. You will always see which country and year apply.
Why use our calculators
Free
No sign-up and no cost for everyday use.
Transparent
We show the formulas, assumptions and limitations behind every result.
Easy to use
Clear forms, prominent results and step-by-step breakdowns.
Country-aware
Rules per country and tax year, with official source and verification date.
How it works
1. Enter your details
Fill in a few fields with clear units.
2. Calculate
Get your result instantly.
3. Understand
Review the breakdown, formula and assumptions.
4. Copy the result
Take away a summary with your inputs, result and assumptions.
Financial guides
See all financial guides- How to calculate compound interest: formula and examplesLearn how to calculate compound interest with its formula, a step-by-step example and the effect of compounding frequency and regular contributions.
- Simple vs. compound interest: the differencesCompare simple and compound interest with their formulas and the same example over 1, 10 and 20 years, and see when each one is used.
- How to calculate a loan paymentCalculate a loan's monthly payment with the standard amortization formula, a worked example and the effect of the term, interest rate and APR on the total cost.
- How to create a monthly budgetBuild your monthly budget in four steps: net income, expenses by category, balance and savings rate, with an example and the 50/30/20 rule.
Frequently asked questions
- Are the calculators free?
- Yes. You can use every calculator at no cost and without creating an account.
- Are the results exact?
- Results are based on documented formulas and the values you enter. They are estimates: tax, payroll and pension calculations may vary with your personal circumstances.
- How are results rounded?
- We calculate with decimal arithmetic and round at the end, or when an amount is fixed, such as a loan payment. Each currency's decimals are respected.