World calculators, one place
Every calculation you need, instantly solved.
A growing library of calculators for math, finance, health, time and everyday life. No sign-up, no ads, results update as you type.
18 calculators
Standard Calculator
Everyday arithmetic with keyboard support, percent and sign toggle.
Open calculator →MathPercentage Calculator
Percent of a number, what-percent-is-X, and increase or decrease.
Open calculator →MathGPA Calculator
Weighted grade point average from any number of courses and credits.
Open calculator →FinanceLoan & Mortgage
Monthly payment, total interest and full cost of any amortized loan.
Open calculator →FinanceCompound Interest
Project savings growth with contributions and any compounding frequency.
Open calculator →FinanceDiscount & Sales Tax
Sale price, money saved and the final total after tax or VAT.
Open calculator →HealthBMI Calculator
Body Mass Index in metric or imperial units with WHO categories.
Open calculator →HealthCalorie & BMR
Daily calorie needs from BMR, activity level and your weight goal.
Open calculator →EverydayUnit Converter
Length, weight, temperature and volume across metric and imperial.
Open calculator →EverydayTip & Bill Split
Tip amount, grand total and the fair share for each person at the table.
Open calculator →EverydayFuel Cost & Economy
Trip fuel cost, consumption per 100 km and cost per kilometre.
Open calculator →TimeAge & Date Difference
Exact years, months and days between dates, plus a birthday countdown.
Open calculator →MathArea & Perimeter
Area and perimeter for rectangles, circles, triangles and trapezoids.
Open calculator →FinanceSavings Goal
How much to set aside each month to hit a target amount on time.
Open calculator →HealthBody Fat Percentage
US Navy tape method estimate with fat mass, lean mass and category.
Open calculator →TimeWork Hours & Pay
Hours worked between two times, minus breaks, plus overtime pay.
Open calculator →CustomBuild Your Own Calculator
Answer five questions, get a working calculator, and save it as a .calc file.
Open calculator →CustomMy Calculators
Your saved and imported calculators, stored privately on this device.
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