Smart Calculations
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Free online calculators for finance, health, and everyday math — accurate formulas, instant results, zero sign-up.

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SIP Calculator

Live

Invested

₹6.0L

Returns

+₹5.6L

Wealth

₹11.6L

Returns proportion48% gains
Monthly SIP₹5,000
₹500₹1L
Expected Return12% p.a.
1%30%
Duration10 Years
1 yr40 yrs
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Every Calculator, One Place

Pick a category or jump straight to the tool you need.

Financial Calculators

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Currency Converter

Convert between 150+ currencies with live exchange rates — updated every 24 hours.

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SIP Calculator

Estimate the future value of your monthly mutual fund investments, with annual step-up support.

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EMI Calculator

Calculate monthly loan instalments with a full amortization schedule.

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PPF Calculator

Project your Public Provident Fund maturity amount, interest earned, and year-by-year growth — completely tax-free under Section 80C.

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FD Calculator

Find the exact maturity value of your fixed deposit with bank-standard quarterly compounding.

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RD Calculator

See how disciplined monthly deposits grow with bank-standard quarterly compounding.

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GST Calculator

Add GST to a price or work backwards from a GST-inclusive amount — with instant CGST/SGST split.

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Income Tax Calculator

Estimate your tax under the New Tax Regime — with the ₹75,000 standard deduction, Section 87A rebate, marginal relief, and cess all applied automatically.

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Compound Interest Calculator

Watch your money grow on itself — choose any compounding frequency and see the year-by-year breakdown.

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Mortgage Calculator

Find your monthly mortgage payment and total interest for any home loan amount, rate, and term.

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Amortization Calculator

Generate a complete payment-by-payment amortization schedule for any loan.

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Mortgage Payoff Calculator

Discover how much time and interest you save by making extra mortgage payments.

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House Affordability Calculator

Find the maximum home price you can comfortably afford based on your income and debts.

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Debt-to-Income Calculator

Calculate your DTI ratio and see if you meet lender requirements for a mortgage or loan.

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Real Estate Calculator

Evaluate any real estate investment with cap rate, NOI, cash-on-cash return, and more.

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Refinance Calculator

Calculate your monthly savings and break-even point to decide if refinancing is worth it.

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Rental Property Calculator

Analyse cash flow, cap rate, and total return for any rental property investment.

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APR Calculator

Calculate the true annual cost of a loan including fees to compare lender offers accurately.

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FHA Loan Calculator

Calculate your FHA loan monthly payment including upfront and annual mortgage insurance premiums.

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VA Mortgage Calculator

Calculate your VA loan monthly payment with VA funding fee for eligible veterans and service members.

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Home Equity Loan Calculator

Calculate home equity loan payments and how much equity you can borrow against your home.

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HELOC Calculator

Calculate HELOC payments for both the draw period (interest-only) and repayment period.

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Down Payment Calculator

Calculate the down payment you need and how long it will take to save for a home purchase.

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UK Mortgage Calculator

Calculate monthly mortgage repayments for UK properties in pounds sterling.

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Canadian Mortgage Calculator

Calculate monthly mortgage payments for Canadian properties using semi-annual compounding.

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Interest-Only Mortgage Calculator

Calculate interest-only payments and see what happens when the loan converts to full amortization.

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Loan Calculator

Calculate monthly payments, total interest, and total repayment for any type of loan.

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Payment Calculator

Reverse-calculate your loan term or interest rate from a known monthly payment amount.

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Personal Loan Calculator

Calculate monthly payments and compare the total cost of personal loan offers.

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Business Loan Calculator

Calculate business loan payments and see if your revenue supports the debt service.

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Auto Loan Calculator

Calculate your car loan monthly payment and compare financing options to get the best deal.

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Student Loan Calculator

Calculate student loan payments and compare repayment plans to minimise total interest paid.

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Boat Loan Calculator

Calculate monthly boat loan payments and total cost of marine financing.

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Debt Payoff Calculator

Find your debt-free date using the avalanche or snowball method and see how much interest you save.

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Debt Consolidation Calculator

Compare multiple debts vs one consolidation loan and see your total interest savings.

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Credit Card Calculator

See how long minimum payments keep you in debt and how much interest you really pay.

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Credit Card Payoff Calculator

Find the monthly payment needed to clear your credit card by your target date.

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Loan Repayment Calculator

Calculate your full repayment schedule and find your exact loan payoff date.

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Simple Interest Calculator

Calculate simple interest and total amount using the SI = P × R × T formula.

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Interest Calculator

Calculate and compare simple vs compound interest for any principal, rate, and time period.

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Interest Rate Calculator

Calculate the implied interest rate from an initial amount, final amount, and time period.

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Investment Calculator

Project the future value of your investments including regular contributions and compound growth.

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Savings Calculator

Calculate savings growth with regular deposits, or find monthly savings needed to reach your goal.

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CD Calculator

Calculate the maturity value and total interest earned on a Certificate of Deposit.

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ROI Calculator

Calculate return on investment as a percentage and annual rate of return.

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Present Value Calculator

Calculate what future money is worth in today's dollars using time value of money.

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Future Value Calculator

Calculate the future value of any investment, savings plan, or regular payment series.

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Bond Calculator

Calculate bond price, yield to maturity, current yield, and Macaulay duration.

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Mutual Fund Calculator

Calculate expected returns for SIP and lump-sum mutual fund investments using CAGR.

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Average Return Calculator

Calculate arithmetic average, CAGR, and annualised returns for any investment.

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IRR Calculator

Calculate the Internal Rate of Return for any series of cash flows to evaluate investment profitability.

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Payback Period Calculator

Calculate how long it takes to recover your initial investment from cash flows.

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Retirement Calculator

Calculate your retirement savings target and whether your current plan gets you there.

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401(k) Calculator

Project your 401(k) balance at retirement including employer matching contributions.

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Roth IRA Calculator

Project tax-free Roth IRA growth and see your retirement income potential.

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IRA Calculator

Calculate traditional IRA growth and tax savings over your retirement timeline.

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Pension Calculator

Estimate your monthly pension benefit based on years of service, salary, and benefit formula.

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Social Security Calculator

Estimate your Social Security benefit and find the optimal age to start claiming.

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Annuity Calculator

Calculate annuity future value, present value, and periodic payment for retirement planning.

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Annuity Payout Calculator

Calculate monthly income you can receive from a lump-sum annuity for life or a fixed period.

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RMD Calculator

Calculate your Required Minimum Distribution to avoid IRS penalties on retirement accounts.

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Salary Calculator

Convert salary between annual, monthly, weekly, and hourly pay rates instantly.

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Take-Home Paycheck Calculator

Calculate your exact net pay after all taxes and deductions.

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Sales Tax Calculator

Add sales tax to a price or find the pre-tax amount from a tax-included total.

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VAT Calculator

Add VAT to a net price or remove VAT from a gross price for any country or rate.

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Discount Calculator

Calculate the final price after discount and the amount you save on any purchase.

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Commission Calculator

Calculate sales commission earnings for any commission rate and sales amount.

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Margin Calculator

Calculate gross margin, net margin, and markup — and convert between margin and markup.

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Estate Tax Calculator

Estimate federal estate tax liability and plan to minimise your estate tax burden.

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Math Calculators

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Percentage Calculator

Three tools in one — percent of a number, percentage of a total, and percent change.

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Age Calculator

Your precise age in years, months, and days — plus days until your next birthday.

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Fraction Calculator

All four fraction operations with simplified results, mixed numbers, and decimals.

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Basic Calculator

A clean, fast online calculator for all basic arithmetic operations.

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Average Calculator

Calculate the mean, median, mode, and range of any data set instantly.

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Ratio Calculator

Simplify ratios, solve proportions, and convert between ratio formats.

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Rounding Calculator

Round numbers to any decimal place, significant figure, or nearest integer.

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Square Root Calculator

Calculate square roots, cube roots, and any nth root with exact and decimal results.

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Quadratic Formula Calculator

Solve any quadratic equation ax² + bx + c = 0 and find real or complex roots.

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Exponent Calculator

Calculate any base raised to any power, including negative and fractional exponents.

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Logarithm Calculator

Calculate log₁₀, natural log (ln), log₂, and logarithms for any base.

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GCF Calculator

Find the Greatest Common Factor of two or more numbers using the Euclidean algorithm.

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LCM Calculator

Find the Least Common Multiple of two or more numbers quickly.

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Prime Factorization Calculator

Find the prime factorization of any number using a step-by-step factor tree.

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Factor Calculator

Find all factors and divisors of any whole number.

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Area Calculator

Calculate the area of any shape — circle, triangle, rectangle, and more.

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Volume Calculator

Calculate the volume of any 3D shape — sphere, cylinder, cone, cube, and more.

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Triangle Calculator

Solve any triangle — find area, perimeter, angles, and altitudes from known sides/angles.

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Right Triangle Calculator

Find hypotenuse, sides, angles, and area of any right triangle using Pythagoras and trig.

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Circle Calculator

Calculate area, circumference, diameter, and radius — enter any one measurement.

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Pythagorean Theorem Calculator

Solve a² + b² = c² for any unknown side of a right triangle.

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Surface Area Calculator

Calculate surface area of any 3D shape — sphere, cylinder, cone, and more.

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Distance Calculator

Calculate the distance between any two points using the coordinate distance formula.

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Standard Deviation Calculator

Calculate mean, variance, and standard deviation for any data set.

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Statistics Calculator

Complete descriptive statistics — mean, median, mode, quartiles, SD, and more.

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Mean Median Mode Calculator

Calculate mean, median, mode, and range for any data set with step-by-step working.

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Probability Calculator

Calculate simple probability, conditional probability, and event combinations.

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Permutation & Combination Calculator

Calculate nPr (permutations) and nCr (combinations) for counting and probability problems.

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Z-Score Calculator

Calculate z-score, percentile, and probability from any raw score in a normal distribution.

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Confidence Interval Calculator

Calculate 90%, 95%, and 99% confidence intervals for population means.

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Sample Size Calculator

Find the minimum sample size for your survey or study with given confidence and margin of error.

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P-Value Calculator

Calculate p-value from z or t statistics for hypothesis testing.

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Scientific Calculator

Full-featured online scientific calculator with trig, log, exponent, and factorial functions.

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Binary Calculator

Perform binary arithmetic and convert between binary, decimal, hex, and octal.

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Hex Calculator

Perform hex arithmetic and convert between hexadecimal, decimal, and binary.

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Scientific Notation Calculator

Convert numbers to scientific notation and perform arithmetic with very large or small numbers.

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Half-Life Calculator

Calculate remaining amount, elapsed time, or half-life for any exponential decay process.

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Percent Error Calculator

Calculate the percent error between your measured result and the true or theoretical value.

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Random Number Generator

Generate random integers, decimals, or lists between any minimum and maximum values.

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Long Division Calculator

Perform long division step-by-step with quotient, remainder, and full working shown.

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Big Number Calculator

Perform arithmetic on arbitrarily large numbers beyond standard calculator limits.

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Why Use SmartCalculations for Your Calculations?

In an era where precision matters most, SmartCalculations provides a seamless interface for your daily computational needs. Whether you are planning your financial future with a Mutual Fund SIP Calculator, estimating tax with the FY 2025-26 Income Tax Calculator, or monitoring fitness goals with a BMI Calculator, our tools deliver instant, accurate, and actionable insights.

Accuracy Guaranteed

Every formula is cross-verified with standard financial and medical references — bank EMI math, WHO BMI categories, government tax slabs.

Built for Search & AI

Structured data and clear explanations make answers easy to find in Google, AI Overviews, ChatGPT, Gemini, and Claude.

Wealth Planning

Visualize growth with interactive charts, year-wise projections, and amortization schedules.

Health Monitoring

Track BMI, BMR, calories, and body fat with personalized recommendations grounded in validated equations.

Frequently Asked Questions

Are these calculators free to use?

Yes, all calculators on SmartCalculations are 100% free and do not require any registration or personal data.

How accurate are the calculators?

Every calculator uses the standard, industry-accepted formula — the same reducing-balance EMI formula banks use, the Mifflin-St Jeor BMR equation, FY 2025-26 income-tax slabs, and so on. Results match bank and government calculators.

Is my data stored anywhere?

No. All calculations run instantly in your browser. Nothing you type is sent to or stored on our servers.

Which calculators are available?

Finance: SIP, EMI, PPF, FD, RD, GST, Income Tax, and Compound Interest. Fitness: BMI, BMR, Calorie, and Body Fat. Math: Percentage, Age, and Fraction calculators. Business: Profit Margin, Break-Even, and CPC/CPM calculators.