Free calculators for your website
Run a blog, a school site, a flying club page or a small business website? Add any of our 100 calculators and converters to your page for free. Your visitors get a working tool, and you never have to maintain it.
How to add one
- Open the tool you want below.
- Press Embed on your site under its name.
- Copy the code and paste it into your page. In WordPress, use a Custom HTML block; in Wix or Squarespace, use an embed or code block.
What you get
- Free forever, no sign-up and no ads inside the tool.
- It sets itself to your visitor’s country, currency and units.
- It resizes to fit and works on phones.
- We keep it up to date when tax rates and rules change.
Popular with
Property and car blogs (bond and car finance calculators), personal finance writers (tax, SIP, savings), schools (marks and percentage), health and fitness sites (BMI, body fat, water intake) and flying schools (E6B, density altitude, crosswind).
Choose a tool
Money
Loan & EMI calculatorCompound interest calculatorIncome tax calculatorVAT & GST calculatorCurrency converterSalary to hourly calculatorSavings goal calculatorSIP calculatorFixed deposit calculatorPPF calculatorGratuity calculatorCar finance calculatorHome loan affordability calculatorInflation calculatorSimple interest calculatorProfit margin calculatorCredit card payoff calculator
Everyday
Age calculatorPercentage calculatorDiscount calculatorBill splitter & tip calculatorDays between datesZodiac sign & birthday finderTime zone converterCountdown timerUnit price comparisonElectricity cost calculatorMarks, percentage and CGPA calculatorHours and time calculatorDate calculatorStopwatch and timerRandom number generatorRoman numeral converterDog age calculator
PDF & file converters
Word to PDFPDF to WordPDF to JPGExcel to PDFText to PDFSplit PDFRotate PDFCompress imageImage converterResize imageImage to PDFMerge PDF
Health
BMI calculatorDaily calorie calculatorSteps to lose weightCalorie counterSleep calculatorPregnancy due date calculatorOvulation calculatorBody fat calculatorWater intake calculator
Vehicles & fuel
Conversions
Text & digital
Aviation & flight
E6B flight computerDensity & pressure altitudeTrue airspeed calculatorWind correction & ground speedFind the windCrosswind calculatorFlight fuel plannerTime, speed & distanceClimb & descent plannerCloud base calculatorRate one turn calculatorTake-off & landing distance checkMass & balance calculatorAviation unit converter
Questions
Want a version in your brand colours or a tool we do not have? Email hello@handysums.com.