Table of selected points[]
The following table gives a comparison of the numerical value of temperatures on a number of different scales:
Kelvin | Celsius | Fahrenheit | Rankine | Delisle | Newton | Réaumur | Rømer | |
---|---|---|---|---|---|---|---|---|
Absolute zero | 0 | −273.15 | −459.67 | 0 | 559.725 | −90.14 | −218.52 | −135.90 |
Fahrenheit's ice/salt mixture | 255.37 | −17.78 | 0 | 459.67 | 176.67 | −5.87 | −14.22 | −1.83 |
Water freezes (at standard pressure) | 273.15 | 0 | 32 | 491.67 | 150 | 0 | 0 | 7.5 |
Average human body temperature (See note below) |
310.0 | 36.8 | 98.2 | 557.9 | 94.5 | 12.21 | 29.6 | 26.925 |
Water boils (at standard pressure) | 373.15 | 100 | 212 | 671.67 | 0 | 33 | 80 | 60 |
Titanium melts | 1941 | 1668 | 3034 | 3494 | −2352 | 550 | 1334 | 883 |
The surface of the Sun | 5800 | 5526 | 9980 | 10440 | −8140 | 1823 | 4421 | 2909 |
Note: Normal human body temperature is 36.8 °C ±0.7 °C, or 98.2 °F ±1.3 °F. The commonly given value 98.6 °F is simply the exact conversion of 37 °C, and therefore has excess (invalid) precision. Some numbers in this table have been rounded off.
Formulas for conversion[]
Given any two fixed points, the formula for conversion between any two scales in the table above can be determined. If two rows and two columns appar as:
Scale X | Scale Y | |
---|---|---|
Fixed point 1 | a | b |
Fixed point 2 | c | d |
the formula can be derived:
where
and
- .
if you are a fan of measurement conversion, you are a virgin.