Converters tools
Convert length, weight, temperature, speed, data size and more. Also time zones, number bases, Roman numerals, CSV to JSON and Markdown to HTML.
Length ConverterConvert cm, inches, feet, metres, miles and km.
Weight ConverterConvert kg, pounds, ounces, grams and stone.
Temperature ConverterConvert Celsius, Fahrenheit, Kelvin and Rankine.
Area ConverterConvert square feet, m², acres and hectares.
Volume ConverterConvert litres, gallons, cups, fl oz and m³.
Speed ConverterConvert km/h, mph, m/s, knots and Mach.
Data Storage ConverterConvert MB, GB, TB, GiB and bits (1000 and 1024).
Time Unit ConverterConvert seconds, minutes, hours, days and years.
Pressure ConverterConvert bar, psi, kPa, atm and mmHg.
Energy ConverterConvert kcal, kJ, kWh, joules and BTU.
Cooking ConverterConvert cups, tbsp, ml and grams by ingredient.
Time Zone ConverterCompare times across cities and plan meetings.
Number Base ConverterConvert binary, octal, decimal, hex and base 2–36.
Roman Numeral ConverterConvert numbers to Roman numerals and back.
Color ConverterConvert HEX, RGB, HSL, HWB and CMYK colours.
Markdown to HTMLConvert Markdown to HTML with a live preview.
HTML to MarkdownConvert HTML to clean Markdown, with tables.
Text to BinaryConvert text to binary, hex or ASCII codes and back.
Number to WordsSpell out numbers in English, cheque style too.