RSRobince Studio

Finance Calculators

Free financial calculators: EMI, home loan, FD, RD, SIP, PPF, NPS, lumpsum, SWP, retirement, GST, mortgage and compound interest with schedules.

Mortgage Calculator

Work out your monthly mortgage payment from price, down payment, rate and term, with optional tax, insurance and HOA, total interest and a yearly payoff table.

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Simple Interest Calculator

Calculate simple interest and the total amount from principal, annual rate and time in years, months or days. Shows the formula and a worked example.

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Inflation Calculator

See what today’s money will cost in future, or how much purchasing power an amount keeps, using your own annual inflation rate and number of years.

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CAGR Calculator

Calculate CAGR from a beginning value, ending value and years, or solve the ending value from a CAGR. Includes the formula and a worked example.

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ROI Calculator

Calculate return on investment from cost and final value, include fees, and see annualised ROI for a holding period. Shows the formula and an example.

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Profit Margin Calculator

Find profit, profit margin percentage and markup from cost and price, or work out the selling price you need for a target margin or markup in seconds.

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VAT Calculator

Add VAT or sales tax to a net price, or remove it from a gross price, using any rate you enter. Shows net, tax and gross amounts with the formulas.

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Salary Converter

Convert pay between hourly, daily, weekly, monthly and annual figures using your own hours per week, days per week and paid weeks per year, free online.

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Tax Bracket Calculator

Estimate progressive tax with your own brackets. Enter limits, rates and a deduction to see tax per bracket, effective rate, marginal rate and take-home.

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Home Loan EMI Calculator

Work out home loan EMI, total interest and cost with processing fee, then test extra monthly or one-time prepayments. Includes yearly and monthly schedules.

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Home Loan Eligibility Calculator

Estimate the maximum home loan you may qualify for from income, existing EMIs and an editable FOIR percentage. See how tenure changes the eligible amount.

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Loan Prepayment Calculator

See how a part-prepayment on an existing loan saves interest, comparing keeping your EMI to finish sooner against lowering the EMI over the same term.

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Car Loan Calculator

Calculate car loan EMI from on-road price, down payment, financed extras like insurance, rate, tenure and an optional balloon (residual) payment at the end.

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Personal Loan Calculator

Calculate personal loan EMI and total payable including processing fee, fixed charges and tax on fees, plus the effective annual rate (IRR) of the real cost.

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Flat vs Reducing Interest Calculator

Convert a flat interest rate to the equivalent reducing-balance rate (IRR) and compare EMIs and total interest side by side. See why flat looks cheaper.

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Loan Comparison Calculator

Compare two or three loan offers by EMI, total interest, processing fee and total cost. The cheapest is highlighted and the difference is shown in money.

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Credit Card Payoff Calculator

See how long a credit card balance takes to clear, the interest you pay, and the payment needed for a target month. Shows the minimum-payment trap.

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FD Calculator

Fixed deposit calculator with cumulative or periodic payout, monthly to yearly compounding, maturity date, optional TDS and a year-wise growth table.

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RD Calculator

Recurring deposit calculator: enter monthly deposit, rate and tenure to see maturity value, total deposited, interest and a quarterly or monthly table.

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PPF Calculator

PPF calculator with 15-year tenure, 5-year extension blocks, deposit at start or end of year, your own rate and a year-by-year balance table.

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Lumpsum Calculator

Lumpsum investment calculator: future value, absolute and annualised gain, an optional inflation-adjusted value, and a year-by-year growth table.

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Step-Up SIP Calculator

Step-up SIP calculator: monthly SIP that rises by a yearly percentage, with total invested, estimated value, gain and a year-wise growth table.

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SWP Calculator

SWP calculator: see your remaining balance each year, the month a corpus runs out and the effect of raising withdrawals yearly, at your expected return.

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NPS Calculator

NPS calculator: monthly contribution, expected return and retirement age to estimate corpus, lump sum, annuity amount and monthly pension. Editable rules.

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Retirement Calculator

Estimate the retirement corpus you need and the monthly investment required, using inflation-adjusted expenses and editable return assumptions. Free, private.

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Savings Goal Calculator

Find the monthly saving needed to hit a target amount, or how long it takes at a set monthly saving. Optional inflation adjustment and editable return.

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Gratuity Calculator

Estimate gratuity with the statutory formula (last drawn salary x 15 x years of service / 26), including the over-six-months rounding rule. Free and private.

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Rule of 72 Calculator

Find how many years it takes to double money at a rate, or the rate needed to double in N years, with exact ln(2) maths beside the 72, 70 and 69.3 rules.

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XIRR Calculator

Calculate XIRR for irregular investments and withdrawals. Paste dated cash flows from a spreadsheet, get the annual rate and absolute gain instantly.

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Break-Even Calculator

Find break-even units and revenue from fixed costs, price and variable cost. See contribution margin, margin of safety and a cost versus revenue chart.

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EMI Calculator

Calculate monthly EMI for home, car or personal loans. See total interest, total payment and a year-by-year amortization table. Free and instant.

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GST Calculator

Add GST to a price or remove it from a GST-inclusive amount. Shows net amount, GST, CGST/SGST split and IGST for 5%, 12%, 18% and 28% slabs.

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Compound Interest Calculator

Calculate compound interest with monthly contributions and your choice of compounding frequency. See a year-by-year table and growth chart. Free, no sign-up.

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SIP Calculator

Estimate the future value of a monthly SIP from your amount, expected return and years. Compare invested money with estimated returns, with optional step-up.

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Tip Calculator

Work out the tip and total for any bill, split it between people and optionally round up the total or each share. Quick presets for 10 to 25 percent.

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Discount Calculator

Find the sale price after a percentage discount, add a second stacked discount and sales tax, and see exactly how much you save. Free and instant.

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About these finance calculators

Money decisions are easier when you can see the numbers. These calculators cover borrowing (EMI, home loan, car loan, personal loan, prepayment and eligibility), saving (fixed and recurring deposits, PPF, savings goals), investing (SIP, step-up SIP, lumpsum, SWP, NPS, CAGR and XIRR), and everyday money maths such as GST, VAT, discounts, margins and inflation.

Each page shows the formula, a worked example and a year-by-year or month-by-month table where it helps. Rates and rules you see as defaults are only examples: enter the rate your bank, lender or scheme actually offers. Results are estimates for planning and comparison, not financial advice.

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