Conversion from degrees Fahrenheit

Fahrenheit - the temperature scale used for non-scientific purposes in the United States and several other countries. Fahrenheit is equal to 5/9 of a degree Celsius. It uses the degree Fahrenheit (symbol °F) as the unit.

Fahrenheit freezing point of water is 32 °F, and the boiling point of water is 212 °F. Thus, this temperature interval is divided into 180 ° F.

The scale proposed in 1724 a German researcher Daniel Gabriel Fahrenheit. Fahrenheit was the first who started producing thermometers, calibrating them so that different thermometers showed the same temperature. For this he needed reference points which can be reproduced at will. Fahrenheit suggested three points. The first point he chose a mixture of ice and the temperature of ammonium chloride, taking it as zero. The second point - the freezing point of water, and the third point - the temperature of the human body. The freezing point Fahrenheit determined in 32 degrees, and the normal human body temperature three times as many - 96 degrees. Later, noting that the difference between the boiling point and freezing point of water at normal atmospheric pressure is about 180 °F, other scientists have changed the value of a degree, so that the difference was exactly 180 °F. With such a value of a degree is normal human body temperature is 98,6 °F.

By the sixties of the 20th century, the Fahrenheit scale was used in all English-speaking countries. However, most of these countries have shifted to the use of the Celsius scale, and in our time degrees Fahrenheit remains in everyday use almost exclusively in the United States. In science, Fahrenheit is not used, giving the Kelvin scale.

To convert values ​​from degrees Fahrenheit to degrees Celsius using the formula: [°C] = ([°F] − 32) × 5⁄9

To convert values ​​from degrees Fahrenheit to Kelvin uses the formula: [K] = ([°F] + 459.67) × 5⁄9