Fahrenheit, Celsius, and Kelvin are three commonly used temperature scales, each with distinct applications and contexts.

Fahrenheit, named after the German physicist Daniel Gabriel Fahrenheit, is primarily utilized in the United States for everyday temperature measurements.

Celsius, also known as the centigrade scale, is the standard temperature scale used in most countries around the world, especially in scientific and academic settings. Named after the Swedish astronomer Anders Celsius, this scale is widely adopted due to its simplicity and alignment with the metric system

Kelvin, the absolute temperature scale, is primarily employed in scientific and engineering applications where precise temperature measurements are crucial. Named after the Scottish physicist William Thomson, 1st Baron Kelvin, this scale starts from absolute zero, the point at which all molecular motion ceases.