The Kelvin(uppercase) scale is named after Lord Kelvin(uppercase), the unit is the kelvin(lowercase), and the symbol is K(uppercase). This agrees with all SI u

The Kelvin(uppercase) scale is named after Lord Kelvin(uppercase), the unit is the kelvin(lowercase), and the symbol is K(uppercase). This agrees with all SI units named after a person. The unit's name is lowercase (unless at the beginning of a sentence), and the symbol has its first letter in uppercase. Examples: newton (N), tesla (T), hertz (Hz), pascal (Pa), joule (J), watt (W), volt (V), ampere (A). Note that "degrees Celsius" is capitalized in a special way. See also: "I bought one bitcoin (1 BTC) on the Bitcoin network."