↳ Finance tools
Finance calculators that show their work.
Plan a loan, project an investment, estimate tax, and size a retirement goal. Every calculator shows the breakdown behind the number with a chart, not just a total, so you can see where the money actually goes.
Finance tools turn a money question into a clear answer with the working shown. This set covers the everyday ones: loan and mortgage repayment, compound interest, investment projections like SIP and lumpsum, fixed and recurring deposits, income tax, and retirement and savings goals.
Each calculator runs the real formula, validates your inputs, and visualizes the result, so you see the principal-versus-interest split, the year-by-year growth, or the contribution-versus-returns breakdown instead of a bare figure.
Some tools are tuned for specific markets. The mortgage, loan, compound interest, retirement, and savings calculators work in any currency, while EMI, SIP, FD, RD, PPF, gratuity, HRA, and income tax follow Indian rules and rupee conventions.
All finance tools
14 toolsWhich finance calculator should I use?
- Compound Interest CalculatorSee how savings grow with compounding over time.
- EMI CalculatorCalculate the EMI, interest, and amortization on an Indian loan.
- FD CalculatorEstimate maturity value and interest on a fixed deposit.
- Gratuity CalculatorCalculate the gratuity payable on leaving a job in India.
- HRA CalculatorWork out the House Rent Allowance exemption you can claim.
- Income Tax CalculatorEstimate Indian income tax under the old and new regimes.
- Loan Repayment CalculatorPlan repayments and interest on any personal or auto loan.
- Lumpsum CalculatorProject the growth of a one-time lumpsum investment.
- Mortgage CalculatorWork out monthly mortgage payments and total interest on a home loan.
- PPF CalculatorProject a Public Provident Fund balance over its term.
- RD CalculatorEstimate maturity value on a recurring deposit.
- Retirement CalculatorSize the corpus you need to retire and track progress toward it.
- Savings Goal CalculatorFind the monthly saving needed to hit a target by a date.
- SIP CalculatorProject the future value of a monthly SIP investment.
Frequently asked questions
What are finance tools?
Finance tools are calculators that answer money questions like loan repayments, investment growth, tax, and retirement targets. ToolBook shows the breakdown behind each result, such as the principal-versus-interest split or year-by-year growth, so you see how the number is built, not just the total.
Are these finance calculators free to use?
Yes. Every finance calculator here is free and runs in your browser, with results that update live as you change the inputs.
Do these calculators work for any country?
It depends on the tool. The mortgage, loan, compound interest, retirement, and savings calculators are currency-agnostic and work anywhere. EMI, SIP, FD, RD, PPF, gratuity, HRA, and income tax follow Indian rules, so they suit users in India.
Which tool should I use to plan a loan?
For a home loan, use the mortgage calculator; for any other loan, the loan repayment calculator. Both show the monthly payment, total interest, and how the balance falls over time. In India, the EMI calculator does the same with rupee conventions.
How accurate are the results?
Each calculator runs the standard formula for its product, with inputs validated and edge cases handled. Tax and statutory tools follow the published rules and rates for the relevant year. Treat the results as well-grounded estimates, not formal financial advice.
Is my financial data private?
Yes. These calculators run entirely in your browser, so the numbers you enter never leave your device and are not stored anywhere.