BROWSE CATEGORY
Calculators tools
Explore calculators tools and utilities.
Tools in this category
Percentage CalculatorCalculate a percentage of a number, percentage share, or percentage change.Average CalculatorCalculate mean, median, mode, range, and sum from a list of numbers.Discount CalculatorCalculate sale price, discount amount, and savings.Grade CalculatorCalculate weighted course grade or the final-exam score needed to reach a target.GPA CalculatorCalculate credit-weighted GPA on a configurable 4.0 scale.Loan / EMI CalculatorEstimate monthly loan payments, total interest, and total repayment.Compound Interest CalculatorProject savings growth with compounding and optional regular monthly contributions.Tip CalculatorCalculate tip, total bill, and each person’s share.Sales Tax CalculatorAdd or remove GST, VAT, or sales tax and calculate the tax amount.Simple Interest CalculatorCalculate simple interest and final amount using I = P × r × t.ROI CalculatorCalculate return on investment percentage and net profit.Salary to Hourly CalculatorConvert annual salary into hourly, weekly, and monthly pay estimates.Savings Goal CalculatorEstimate monthly savings needed to reach a goal without interest.Fuel Cost CalculatorEstimate trip fuel cost from distance, fuel economy, and fuel price.Inflation CalculatorEstimate future prices and today’s buying power at a chosen inflation rate.BMI CalculatorCalculate adult BMI from height and weight; this is a screening estimate, not a diagnosis.BMR CalculatorEstimate basal metabolic rate using the Mifflin–St Jeor equation.Ideal Weight CalculatorEstimate a broad healthy-weight range from height; not an individual medical recommendation.Calorie Needs CalculatorEstimate daily energy needs from BMR and activity multiplier.Running Pace CalculatorCalculate pace from distance and time.Water Intake EstimatorEstimate a starting daily water target based on body weight.Ratio SimplifierSimplify a ratio using the greatest common divisor.Profit Margin & MarkupCalculate gross profit, profit margin, and markup from cost and selling price.Break-Even CalculatorCalculate break-even sales volume and revenue from fixed and variable costs.50/30/20 Budget CalculatorSplit monthly take-home income into needs, wants, and savings targets.Emergency Fund CalculatorEstimate an emergency fund target and the months needed to build it.Net Worth CalculatorCalculate net worth from total assets minus liabilities.Crypto Profit CalculatorEstimate profit/loss and ROI after buy, sell, quantity, and fees. No live prices or investment advice.Stock Average Cost CalculatorCalculate average cost per share across multiple purchases.Annuity Future Value CalculatorEstimate future value of regular end-of-period contributions at a fixed rate.FIRE Number CalculatorEstimate a financial-independence target using annual expenses and a chosen withdrawal rate.Percentage Change CalculatorCalculate percentage increase or decrease between two values.Fraction CalculatorAdd, subtract, multiply, or divide two fractions and simplify the result.Reverse Sales Tax CalculatorFind pre-tax price and tax amount from a tax-inclusive total.Car Loan CalculatorEstimate monthly car payments from loan amount, annual interest, and term.Debt Payoff CalculatorEstimate payoff time and total paid using a fixed monthly payment.Mortgage CalculatorEstimate principal-and-interest payment for a home loan. Taxes and insurance are not included.Retirement Savings CalculatorProject a savings balance with monthly contributions and an assumed annual return.Income Tax EstimatorEstimate tax using a single effective tax rate; not a substitute for jurisdiction-specific tax advice.Reverse Discount CalculatorFind original price from a sale price and discount percentage.VAT / GST CalculatorAdd VAT/GST to a net price or remove it from a tax-inclusive total.Take-Home Pay CalculatorEstimate take-home pay from gross pay, a flat tax rate, and deductions.Body Fat Calculator (Estimate)Estimate body-fat percentage with the US Navy method; measurements and population assumptions affect accuracy.Savings Drawdown CalculatorEstimate how many months savings may last with fixed monthly withdrawals and a monthly return.Percentage Of CalculatorFind a percentage of any number and show the calculation.Salary Increase CalculatorCalculate the new salary and increase amount from a raise percentage.Scientific Calculator - Online & FreeA free online scientific calculator with trigonometry, logarithms, powers, roots, constants, memory and history. Works in your browser, offline, no signup.Salary to Hourly Calculator - Pay ConverterConvert an annual salary to an hourly wage and back, across weekly and monthly pay too, based on your hours. Free, private, and 100% client-side, no signup.Dividend Reinvestment Calculator - DRIPSee how reinvested dividends compound over time, and compare DRIP vs taking cash. Add dividend growth and contributions. An estimate, not advice. Runs offline.APR Calculator - True Loan CostWork out a loan's true annual cost — the APR — by folding fees into the rate, so you can compare offers fairly. See nominal vs APR. Private, runs offline.Lease vs Buy Calculator - True CostCompare the true net cost of leasing vs buying over the same period — crediting the resale value you keep when you buy. See which is cheaper. Private, runs offline.How Much House Can I Afford? CalculatorEstimate how much house you can afford from your income, debts, and down payment using an adjustable DTI. An estimate, not a pre-approval. Private, runs offline.Refinance Calculator - Break-Even & SavingsSee if refinancing pays off: monthly savings, break-even months, and an honest total-interest comparison (a lower payment can cost more). An estimate, runs offline.401(k) Calculator - Growth with Employer MatchProject your 401(k) at retirement with employer match and compound growth. See contributions vs match vs growth. A US estimate, not advice — runs offline, private.Pension Calculator - Pot & DB IncomeProject a pension pot from contributions and growth, or estimate a defined-benefit pension: salary × service × accrual. You set the rules. An estimate, not advice.RMD Calculator - Required Minimum (US)Estimate your US Required Minimum Distribution: RMD = prior-year-end balance ÷ IRS life-expectancy factor. Dated factors, editable. An estimate, not tax advice.Roth IRA Calculator - Tax-Free GrowthProject your Roth IRA's tax-free growth to retirement and see the advantage vs a taxable account. A US estimate, not advice; limits change yearly. Runs offline.SWP Calculator - Withdrawal Plan & LongevityModel a systematic withdrawal plan: see your ending balance or how long a corpus lasts, and whether withdrawals are sustainable. An estimate, not advice. Offline.Capital Gains Tax Calculator - Any CountryEstimate your capital gain and the tax on it using your own rate — works in any country, for stocks, crypto, or property. An estimate, not tax advice. Runs offline.Income Tax Estimator - Any BracketsEstimate income tax on tax bands you enter — any country, any year. See tax due, after-tax income, effective and marginal rate. An estimate, not tax advice.Self-Employment Tax Calculator (US)Estimate US self-employment tax (Social Security + Medicare): net profit × 92.35% × 15.3%. Shows the deductible half. Dated, editable rates. An estimate, not advice.