Complete conversion matrix
Convert physical units, data units, number bases, pixel sizes and common one-way conversions.
Unit converters · No upload · No login
Free Unit Converter
A complete static unit conversion toolbox for length, weight, temperature, area, volume, speed, time, pressure, energy, power, data storage, fuel consumption, angles, force, torque, density and more.
30 live convertersStatic upload readyBrowser-basedNo login required
Unit Converter Tools
All converters are available now. Choose a tool below and convert locally in the browser.
Length Converter
Convert meters, kilometers, miles, feet, inches, yards and more.
LiveWeight Converter
Convert kilograms, grams, pounds, ounces, stones and tons.
LiveTemperature Converter
Convert Celsius, Fahrenheit, Kelvin and Rankine.
LiveArea Converter
Convert square meters, acres, hectares, square feet and more.
LiveVolume Converter
Convert liters, gallons, cups, cubic meters and more.
LiveSpeed Converter
Convert mph, km/h, m/s, knots and more.
LiveTime Converter
Convert seconds, minutes, hours, days, weeks and years.
LivePressure Converter
Convert pascal, bar, psi, atm, torr and more.
LiveEnergy Converter
Convert joules, calories, BTU, watt-hours and electronvolts.
LivePower Converter
Convert watts, kilowatts, horsepower and BTU per hour.
LiveData Storage Converter
Convert bytes, KB, MB, GB, TB and PB.
LiveFuel Consumption Converter
Convert MPG, km/L and L/100km.
LiveAngle Converter
Convert degrees, radians, gradians, arcminutes and arcseconds.
LiveFrequency Converter
Convert hertz, kilohertz, megahertz, gigahertz and RPM.
LiveForce Converter
Convert newtons, pound-force, kilogram-force and dynes.
LiveTorque Converter
Convert newton-meters, pound-feet and kilogram-force meters.
LiveDensity Converter
Convert kg/m³, g/cm³, lb/ft³ and lb/in³.
LiveFlow Rate Converter
Convert liters per second, gallons per minute, cubic meters per hour and more.
LiveNumber Base Converter
Convert binary, octal, decimal and hexadecimal numbers.
LiveCurrency Format Converter
Format numbers as currency without exchange-rate conversion.
LivePixels to Inches Converter
Convert pixels to inches using DPI/PPI.
LiveInches to Pixels Converter
Convert inches to pixels using DPI/PPI.
LiveCM to Inches Converter
Convert centimeters to inches.
LiveInches to CM Converter
Convert inches to centimeters.
LiveKG to LB Converter
Convert kilograms to pounds.
LiveLB to KG Converter
Convert pounds to kilograms.
LiveMiles to KM Converter
Convert miles to kilometers.
LiveKM to Miles Converter
Convert kilometers to miles.
LiveCelsius to Fahrenheit Converter
Convert Celsius to Fahrenheit.
LiveFahrenheit to Celsius Converter
Convert Fahrenheit to Celsius.
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Why use 100308?
A focused unit converter site for everyday users, students, developers, engineers and business workflows.
Browser-based
Most conversions run locally in JavaScript, so your input does not need to be uploaded to a server.
Direct upload ready
No PHP, no database and no backend setup required. Upload the files to your domain root.
FAQ
Are all converters available?
Yes. This version includes 30 live converters and does not use Planned placeholders.
Is my data uploaded?
No. The converters run in the browser. The site does not send converter input to a backend.
Can I upload this to a normal web host?
Yes. It is a static HTML/CSS/JS website.