Converter tools

Generate Code 128, EAN, UPC and Code 39 barcodes as PNG or SVG files.

Create a downloadable QR code from a URL or any text.

Convert Roman numerals to decimal numbers and decimal numbers to Roman notation.

Convert between about 250 units of measurement, offline in your browser.

Convert grays, milligrays and rads.

Convert m/s², g-force, ft/s² and km/h per second.

Convert degrees, radians, gradians - and percent slope.

Convert square metres, hectares, acres and square feet.

Convert farads, microfarads, nanofarads and picofarads.

Convert coulombs, ampere-hours and mAh.

Convert amperes, milliamperes and microamperes.

Convert bytes, KB, MB, GB, TB and the KiB/MiB/GiB units.

Convert Mb/s, MB/s, Gb/s and internet speeds.

Convert kg/m³, g/cm³, lb/ft³ and lb/gal.

Convert sieverts, millisieverts and rem.

Convert joules, calories, kWh and BTU.

Convert l/min, m³/h, GPM and CFM.

Convert newtons, kilogram-force, pound-force and dynes.

Convert Hz, kHz, MHz, GHz, RPM and rad/s.

Convert l/100 km, MPG (US and UK) and km/l.

Convert lux, foot-candles and phots.

Convert metres, feet, inches, miles and 25 more units of length.

Convert cd/m² (nits), stilbs, lamberts and foot-lamberts.

Convert kilograms, pounds, ounces, stones and tonnes.

Convert kilowatts, horsepower (KM/PS) and BTU/h.

Convert bar, psi, pascals, atmospheres and mmHg.

Convert becquerels, curies and their multiples.

Convert ohms, kilohms, megohms and milliohms.

Convert km/h, mph, m/s, knots - and running pace.

Convert Celsius, Fahrenheit, Kelvin and Rankine.

Convert seconds, minutes, hours, days, weeks and years.

Convert N·m, lbf·ft, kgf·m and lbf·in.

Convert volts, millivolts, kilovolts and megavolts.

Convert litres, millilitres, gallons, pints and cups.