21 TOOLS
Free Everyday Calculators and Generators
Solve quick tasks—from percentages and dates to QR codes, invoices and file-size conversions—in one place.
Choose a utility tool
Open a tool to see its instructions, supported inputs and important limitations before starting.
QRCOQR Code GeneratorCreate and download a QR code from text or a URL.PASSPassword GeneratorGenerate strong passwords using secure randomness.UNITUnit ConverterConvert length, weight, temperature and data units.PERCPercentage CalculatorCalculate percentages, changes, increases, and decreases.ONLIOnline TimerSet a countdown timer with a clear visual finish.AGECAge CalculatorCalculate an exact age from a birth date.LOANLoan CalculatorEstimate monthly payment, interest, and total repayment.BMICBMI CalculatorCalculate BMI from metric or imperial measurements.GSTHGST/HST CalculatorCalculate Canadian GST/HST and totals.TIPBTip & Bill SplitterSplit a bill and calculate tip per person.DATEDate CalculatorAdd or subtract days from a date.DISCDiscount CalculatorCalculate sale price and savings.BUSIBusiness Days CalculatorCount weekdays between two dates.TIMETime-Zone ConverterConvert a date and time between time zones.FILEFile-Size ConverterConvert bytes, KB, MB and GB.ASPEAspect-Ratio CalculatorCalculate proportional image or video dimensions.BARCBarcode GeneratorCreate a downloadable Code 128 barcode.AREAArea CalculatorCalculate the area of common shapes.RETIRetirement CalculatorEstimate savings growth toward retirement.INVOInvoice GeneratorCreate a simple printable invoice.RESUResume BuilderCreate a clean resume document from your details.