Calculators
Finance, health and maths — 37 free tools, no sign-up.
CalculatorA fully working premium calculator.
Loan / EMI CalculatorMonthly installment, total payment and interest.
Percentage CalculatorFind percentages, increases and decreases.
Discount CalculatorFinal price and savings after discount and tax.
Tip & Split CalculatorSplit a bill between friends with tip included.
BMI CalculatorBody mass index with a simple explanation.
Age CalculatorYour exact age and days to your next birthday.
GPA CalculatorWork out your GPA from grades and credit hours.
Electricity Bill CalculatorEstimate your LESCO or any DISCO electricity bill from units and rates.
Spinning / Yarn CalculatorYarn count converter, draft and carding / blow room production.
Zakat CalculatorWork out Zakat on cash, gold, silver and business assets.
Date DifferenceDays, weeks and months between two dates.
AdSense Earnings EstimatorEstimate daily, monthly and yearly earnings from impressions and RPM.
Compound Interest CalculatorSee how savings grow with compound interest.
Simple Interest CalculatorWork out simple interest on a loan or deposit.
ROI CalculatorReturn on investment from cost and final value.
Profit Margin CalculatorProfit, margin and markup from revenue and cost.
VAT / GST CalculatorAdd or remove sales tax from any price.
Salary CalculatorConvert yearly pay to monthly, weekly, daily and hourly.
BMR CalculatorEstimate the calories your body burns at rest.
Pregnancy Due Date CalculatorEstimate a due date from the last period.
Fuel Cost CalculatorTrip fuel and cost from distance and mileage.
Average CalculatorMean, median, min, max and sum of a list.
Standard Deviation CalculatorPopulation and sample standard deviation.
GCD & LCM CalculatorGreatest common divisor and least common multiple.
Prime Number CheckerFind out if a number is prime.
Factorial CalculatorCalculate n! for numbers up to 170.
Quadratic Equation SolverSolve ax² + bx + c = 0 with real or complex roots.
Percentage Change CalculatorPercent increase or decrease between two values.
Circle Area CalculatorArea, circumference and diameter from the radius.
Pythagorean Theorem CalculatorFind the hypotenuse of a right triangle.
CAGR CalculatorCompound annual growth rate of an investment.
Days Until CalculatorHow many days until any date.
Add Days to DateAdd or subtract days from a date.
Day of the Week FinderFind out which weekday any date falls on.
Leap Year CheckerCheck if a year is a leap year.
Inflation CalculatorFuture price after years of inflation.About our calculators
Quick, accurate calculators for money, health, dates and everyday maths. Every tool is free, private and works on phones, tablets and computers.
Looking for something else? Try PDF Tools, Image Tools, Video & Audio, Text Tools, Converters, Developer Tools, Everyday Tools.
Frequently Asked Questions about calculators
Quick answers before you start.
What free calculators does Supreme Pro offer?
Supreme Pro has 37 free calculators, including Calculator, Loan / EMI Calculator and Percentage Calculator. Each one opens on its own page, so you can start straight away without installing anything.
Do I need to sign up to use these calculators?
No. The calculators work without an account or sign-up. Open a tool, add your input and download or copy the result.
Are my files and data uploaded to your servers?
Most tools run inside your browser, so what you add stays on your own device. Each tool page explains how it works, and our privacy policy has the details.
Do the calculators work on phones and tablets?
Yes. They are built for current versions of Chrome, Edge, Firefox and Safari on Android, iOS, Windows and macOS. Very large files can be slow on older phones.
How do I find the right tool quickly?
Use the filter box at the top of this page, the search button in the header, or the menus at the top of every page. Related tools are also listed at the bottom of each tool page.
Is there a limit on how often I can use them?
We do not limit how many times you use a tool. Because the work happens in your browser, the practical limit is your device's memory, so try a smaller file if a page slows down.
Can I rely on the calculators for important decisions?
They apply standard formulas to the numbers you enter, so treat results as estimates. For decisions about money, health or legal matters, confirm the figures with a qualified professional.
Why people choose Supreme Pro
