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All tools / Calculators

Calculators tools, kept simple.

Reliable date, health, math, and finance calculations. Choose a focused utility and get straight to work.

Date & time

Age CalculatorNewCalculate an exact age and the time until the next birthday.Date CalculatorNewAdd or subtract calendar years, months, weeks, and days.Date Difference CalculatorNewFind the exact calendar difference between two dates.Time CalculatorNewAdd, subtract, or compare durations beyond 24 hours.

Health & fitness

BMI CalculatorNewEstimate adult body mass index using metric or imperial units.Calorie CalculatorNewEstimate adult BMR and daily maintenance calories.Pace CalculatorNewCalculate running pace and speed from distance and elapsed time.Body Fat CalculatorNewEstimate body fat percentage using the U.S. Navy circumference method.Ideal Weight CalculatorNewCompare four recognized height-based reference-weight formulas.Water Intake CalculatorNewEstimate daily water intake from body weight and activity.Due Date CalculatorNewEstimate a pregnancy due date from LMP or conception date.Pregnancy CalculatorNewEstimate gestational age, due date, and trimester.

Math

Percentage CalculatorNewSolve common percentage, change, and adjustment questions.Fraction CalculatorNewAdd, subtract, multiply, divide, and simplify fractions.Average CalculatorNewFind count, sum, mean, median, minimum, and maximum.

Construction

Square Footage CalculatorNewCalculate room or rectangular area in square feet and meters.Concrete CalculatorNewEstimate rectangular slab volume with an optional waste allowance.Paint CalculatorNewEstimate paintable wall area and paint required for multiple coats.

Finance

Compound Interest CalculatorNewEstimate compound growth with optional recurring contributions.Simple Interest CalculatorNewCalculate simple interest for a principal, rate, and duration.Loan CalculatorNewEstimate payments and total interest for an amortizing loan.EMI CalculatorNewEstimate an equated monthly instalment and total payable.Mortgage CalculatorNewEstimate a home loan payment with optional ownership costs.Investment CalculatorNewProject investment value from contributions and an estimated return.Car Loan CalculatorNewEstimate vehicle financing after down payment, trade-in, and fees.Amortization CalculatorNewCalculate a payment and inspect its principal and interest schedule.Discount CalculatorNewFind sale price, discount amount, and percentage saved.Profit Margin CalculatorNewCalculate profit, gross margin, and markup from cost and revenue.Markup CalculatorNewConvert a cost and markup percentage into a selling price and margin.Savings CalculatorNewProject savings from a starting balance, monthly deposits, and interest.Savings Goal CalculatorNewEstimate a monthly contribution or time needed to reach a savings goal.Retirement CalculatorNewProject retirement savings without jurisdiction-specific pension assumptions.Debt Payoff CalculatorNewEstimate payoff time, interest, and savings from extra payments.Credit Card Payoff CalculatorNewEstimate how long a card balance may take to repay.Fuel Cost CalculatorNewEstimate fuel required and trip cost in metric or imperial units.