Converters — Toolkit

Convert between Celsius, Fahrenheit, and Kelvin.

Convert between meters, feet, miles, inches, and more.

Convert between kilograms, pounds, ounces, and grams.

Convert between litres, millilitres, gallons, cups, and more.

Convert between square metres, acres, hectares, square feet, and more.

Convert between km/h, mph, m/s, knots, and feet per second.

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

Convert between bytes, KB, MB, GB, and TB.

Convert between binary, octal, decimal, and hexadecimal.

Convert numbers to Roman numerals and back (1–3999).

Convert a date and time between world time zones.

Convert between world currencies at recent exchange rates.