The calculator collection

All Calculators

Browse every category in one place. Upcoming tools are clearly marked Coming soon.

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167 calculators153 ready to use · 14 coming soon

Loans

Mortgage Calculator

Model mortgage payments, ownership costs and extra payments.

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Loans

EMI Calculator

Explore monthly installments and annual repayment schedules.

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Savings

Fixed Deposit Calculator

Calculate fixed-deposit maturity with compounding and tax assumptions.

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Savings

Interest Calculator

Calculate interest and contributions over time.

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Income

Salary Calculator

Estimate Indian CTC and take-home pay using the existing salary model.

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Tax

GST Calculator

Add or remove Indian GST and split CGST, SGST and IGST.

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Tax

UK VAT Calculator

Calculate VAT-inclusive and VAT-exclusive amounts.

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Investments

SIP Calculator

Project monthly investments, growth and year-by-year balances.

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Investments

Step Up SIP Calculator

Project monthly investments, growth and year-by-year balances.

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Investments

Lumpsum Calculator

Calculate compound growth with an explicit compounding convention.

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Investments

SWP Calculator

Each month: closing balance = opening balance × (1 + monthly return) − withdrawal.

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Investments

SIP vs Lumpsum Calculator

Compare investing the entire budget today with equal monthly instalments totaling the same budget.

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Planning

Savings Goal Calculator

Required periodic saving = (target − present savings × (1 + i)^n) / annuity factor.

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Returns

ROI Calculator

ROI = (ending value + income − fees − initial investment) / initial investment.

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Returns

CAGR Calculator

CAGR = (ending value / beginning value)^(1 / years) − 1.

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Returns

IRR & NPV Calculator

Evaluate periodic cash flows with discounting and numerical IRR.

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Returns

XIRR Calculator

Calculate annualized returns for investments on irregular dates.

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Returns

Rule of 72 Calculator

Approximate doubling time = 72 / annual percentage return.

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Loans

Loan Calculator

Calculate a fixed-rate monthly payment and repayment schedule.

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Loans

Car Loan EMI Calculator

Calculate a fixed-rate monthly payment and repayment schedule.

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Loans

Gold Loan Calculator

Calculate a fixed-rate monthly payment and repayment schedule.

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Loans

Land Loan Calculator

Calculate a fixed-rate monthly payment and repayment schedule.

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Loans

Mudra Loan Calculator

Calculate a fixed-rate monthly payment and repayment schedule.

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Loans

Loan Prepayment Calculator

Compare the original loan with monthly extra payments and an immediate principal reduction.

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Loans

Loan APR Calculator

Solve net proceeds = present value of monthly payments.

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Returns

Bond Calculator

Bond price = present value of coupons plus redemption value.

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Returns

Dividend Calculator

Dividend income = shares × annual dividend per share.

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Returns

CAPM Calculator

Expected return = risk-free rate + beta × (market return − risk-free rate)..

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Retirement

Retirement Planner

Inflate annual expenses to retirement; divide by an assumed withdrawal rate to estimate a target corpus.

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Retirement

FIRE Calculator

FIRE target = net annual expenses / withdrawal rate.

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Retirement

Lean FIRE Calculator

FIRE target = net annual expenses / withdrawal rate.

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Retirement

Fat FIRE Calculator

FIRE target = net annual expenses / withdrawal rate.

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Retirement

Coast FIRE Calculator

FIRE target = net annual expenses / withdrawal rate.

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Retirement

NPS Calculator

Project contributions using an assumed annual return.

Editable assumptions
Retirement

401(k) Save the Max Calculator

Contribution per remaining paycheck = (your applicable annual limit − year-to-date employee contributions) / remaining pay periods..

Editable assumptions
Retirement

Traditional IRA vs Roth IRA Calculator

Compare equal pre-tax budgets: traditional grows the pre-tax amount and pays tax on withdrawal; Roth invests the after-tax amount and qualified withdrawals are assumed tax-free.

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Savings

PPF Calculator

Annual model: balance = (opening balance + annual contribution) × (1 + rate).

Editable assumptions
Savings

Sukanya Samriddhi Yojana Calculator

Contribute at the beginning of each of the first 15 years, then compound without deposits through year 21.

Editable assumptions
Retirement

EPF / PF Calculator

EPF deposit = employee contribution + employer contribution − employer EPS diversion.

Editable assumptions
Tax

HRA Exemption Calculator

Old-regime HRA exemption is the least of HRA received, rent minus 10% of eligible salary, and 50% of salary in specified metro cities (40% elsewhere), with a floor of zero.

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Income

Gratuity Calculator

For covered employees: gratuity = monthly eligible salary × 15 / 26 × qualifying years.

Editable assumptions
Tax

TDS Calculator

Estimated tax = taxable amount × your applicable effective tax rate.

Editable assumptions
Tax

Bonus Tax Estimate

Estimated tax = taxable amount × your applicable effective tax rate.

Editable assumptions
Tax

Tax Refund Calculator

Refund or balance due = tax payments − final assessed liability.

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Business

Depreciation Calculator

Straight-line annual depreciation = (cost − salvage) / years.

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Income

Bonus Calculator

Bonus = eligible salary × bonus percentage.

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Income

Leave Encashment Calculator

Encashment = eligible monthly salary / payroll day divisor × eligible leave days.

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Income

Hourly to Salary Calculator

Annual gross pay = hourly pay × paid hours per week × paid weeks per year..

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Planning

Emergency Fund Calculator

Target emergency fund = essential monthly expenses × months of protection..

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Planning

Net Worth Calculator

Net worth = total assets − total liabilities.

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Insurance

Life Insurance Needs Calculator

Required cover = present value of annual expenses + debt + other needs − available assets.

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Property

Rent vs Buy Calculator

Compare buyer equity after sale with the renter’s invested down payment and purchase costs.

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Property

Stamp Duty Calculator

Estimated charge = applicable value × your jurisdiction’s rate + fixed charges − eligible rebate, with a floor of zero.

Editable assumptions
Property

Property Registration Fee Calculator

Estimated charge = applicable value × your jurisdiction’s rate + fixed charges − eligible rebate, with a floor of zero.

Editable assumptions
Property

Property Tax Calculator

Estimated charge = applicable value × your jurisdiction’s rate + fixed charges − eligible rebate, with a floor of zero.

Editable assumptions
Property

Home Equity Loan Calculator

Available equity borrowing = home value × combined LTV − existing secured mortgage, floored at zero.

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Property

HELOC Calculator

Assumes the full balance is drawn immediately, interest-only payments during the draw period, then full amortization at the entered repayment rate.

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Loans

Auto Lease Calculator

Base lease payment = (adjusted capitalized cost − residual) / months + (adjusted capitalized cost + residual) × money factor.

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Tax

Mortgage Tax Saving Estimate

Incremental saving = smaller of deductible mortgage interest and incremental itemized deduction × marginal tax rate.

Editable assumptions
Trading

Credit Card Rewards Comparison

Net annual value = eligible spending × reward value, limited by a cap, less any non-waived annual fee.

Editable assumptions
Utilities

Currency Converter

Converted amount = source amount × entered exchange rate × (1 − fee%).

Editable assumptions
Utilities

Tip Calculator

Tip = bill × tip percentage.

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Utilities

Date Difference Calculator

Elapsed calendar days = end date − start date, excluding the start date.

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Utilities

Fuel Cost Calculator

Fuel needed = distance / kilometres per litre.

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Utilities

Unit Converter

Uses exact metric definitions: mile = 1.609344 km; pound = 0.45359237 kg; inch = 2.54 cm; US gallon = 3.785411784 litres.

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Retirement

Atal Pension Yojana Calculator

Monthly contribution is looked up by entry age and pension tier in the PFRDA APY contribution chart.

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Property

Home Equity Loan vs HELOC Calculator

Compare a fixed amortizing home equity loan with an immediately fully drawn HELOC that pays interest only during its draw period.

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Loans

Housing Interest Subsidy Scenario Calculator

Illustrative subsidy present value = present value of equal monthly interest support on the eligible loan portion, capped at the entered subsidy limit.

Editable assumptions
Fitness & Health

BMI Calculator

Estimate body mass index from height and weight for a quick health range check.

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Fitness & Health

Calorie Calculator

Estimate daily calorie needs from activity level, body metrics, and goal.

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Fitness & Health

Body Fat Calculator

Estimate body fat percentage from common body measurements.

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Fitness & Health

BMR Calculator

Calculate basal metabolic rate for baseline energy planning.

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Fitness & Health

Ideal Weight Calculator

Compare common ideal weight formulas for a practical target range.

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Fitness & Health

Pace Calculator

Convert distance and time into training pace and finish estimates.

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Math

Fraction Calculator

Add, subtract, multiply, divide, and simplify fractions.

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Math

Algebra Calculator

Work through algebraic expressions and equation setup.

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Math

Equation Solver

Solve common equation forms and inspect each result.

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Utilities

Age Calculator

Calculate exact age from birth date to today or any target date.

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Utilities

Time Calculator

Convert and compare durations across hours, minutes, and seconds.

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Utilities

GPA Calculator

Estimate grade point average from courses and credit hours.

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Utilities

Password Generator

Create strong password options for safer account setup.

Coming soon
Scientific

Scientific Calculator

Calculate powers, roots, logarithms and trigonometric functions with keyboard support.

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Scientific

Graphing Calculator

Plot functions, explore inequalities, build tables and investigate how changing a parameter changes a graph.

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Scientific

3D Graphing Calculator

Explore surfaces and parametric curves in three dimensions. Rotate the view to see the mathematics from a different angle.

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Scientific

Matrix Calculator

Work with matrices, calculate determinants and inverses, and use row reduction to investigate systems of equations.

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Scientific

Geometry Tool

Construct points, lines, circles and polygons. Drag objects and explore measurements and geometric relationships.

Ready to calculate

See each calculator for its supported scope and assumptions.