Leiden Scale to Celsius

Leiden Scale (L): The Leiden Scale is a historical temperature scale used in the early 20th century, particularly at the Leiden University lab, for measuring extremely low temperatures, primarily for values below -183 °C.

Celsius (°C): The Celsius scale, also known as the centigrade scale, is the most widely used temperature scale in the world. It is an interval system defined by 0 °C as the freezing point of water and 100 °C as the boiling point of water at standard atmospheric pressure.