Conversion Tools
Convert units, colours, angles and more with instant, two-way converters built for everyday and technical use.
26 free tools · everything runs in your browser
Radians Converter
Convert between radians, degrees and gradians with precise step-by-step results.
Open ToolHexadecimal to Decimal Converter
Convert between hexadecimal, decimal, binary and octal number systems instantly.
Open ToolEngineering Unit Converter
Convert values across SI prefixes — kilo, mega, giga, milli, micro and more.
Open ToolPower Unit Converter
Convert power between watts, kilowatts, horsepower, BTU/hour and other units.
Open ToolElectrical Unit Converter
Convert electrical units — volts, amps, ohms, watts and their multiples.
Open ToolNumber to Words
Spell out any number in Indian (lakh and crore) and international systems, plus currency wording.
Open ToolRoman Numeral Converter
Convert numbers to Roman numerals and back with strict canonical validation and symbol breakdowns.
Open ToolData Size Converter
Convert file sizes between bytes, KB/MB/GB/TB (decimal) and KiB/MiB/GiB (binary) with a complete table.
Open ToolColor Space Converter
Convert colors live between RGB, HEX, HSL, HSV and CMYK — edit any field and every other format updates instantly.
Open ToolPPM Concentration Converter
Convert concentration units between ppm, ppb, ppt, percent, mg/L and µg/L with water-solution assumptions spelled out.
Open ToolDegrees Minutes Seconds Converter
Convert degrees-minutes-seconds (DMS) to decimal degrees and back with hemisphere handling and radian output.
Open ToolWire Gauge Converter
Convert AWG and SWG wire gauges to mm and inches with a full gauge table and circular-mil areas.
Open ToolLight Unit Converter
Convert lumens, lux, candelas, footcandles and watts using beam angle, distance and luminous efficacy.
Open ToolHeight Unit Converter
Convert height between feet+inches, decimal feet, total inches, centimeters and meters in one editable row.
Open Tool