Online temperature conversion tool supporting Kelvin, Celsius, Fahrenheit, Rankine, Delisle, Newton, Réaumur and Rømer scales
SI unit of temperature measurement
Used In: International
Established: 1848
Created By: William Thomson, 1st Baron Kelvin
Most widely used temperature scale
Established: 1742
Created By: Anders Celsius
Temperature scale used in the US and a few other countries
Used In: United States & Dependencies
Established: 1724
Created By: Daniel Gabriel Fahrenheit
Absolute temperature scale used in engineering
Used In: Engineering (US)
Established: 1859
Created By: William John Macquorn Rankine
Temperature scale used in 18th century Russia
Used In: Historical (Russia)
Established: 1732
Created By: Joseph-Nicolas Delisle
One of the earliest temperature scales
Used In: Historical
Established: 1701
Created By: Isaac Newton
Widely used in 18th-19th century Europe
Used In: Historical (France)
Established: 1730
Created By: René Antoine Ferchault de Réaumur
Scale used in the first modern thermometer
Used In: Historical (Denmark)
Created By: Ole Christensen Rømer