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v0.31:Temperature

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For temperature as it relates to choosing an embarkation site, see Climate.


Template:AV

Temperature scale

Dwarf Fortress uses its own temperature scale in most cases, often called "Degrees Urist" on this wiki. So if you see something like [HOMEOTHERM:10067], don't be amazed.

Magma's temperature is 12,000° Urist.

Conversion

[DF scale] = [FAHRENHEIT] + 9968

[DF scale] = [CELSIUS] * 9/5 + 10000

[DF scale] = [KELVIN] * 9/5 + 9508.33

[DF scale] = [RANKINE] + 9508.33

Reference Chart

Significance DF Scale Fahrenheit Celsius Kelvin Rankine
Human Body Temperature 10066.62 98.6 37.0 310.15 558.27
Freezing Point of Water 10000 32 0 273.15 491.67
Boiling Point of Water 10180 212 100 373.15 671.67
Absolute Zero 9508.332 -459.67 −273.15 0 0
DF Scale's Zero1 0 -9968 -5555.555... -5282.40555... -9508.33

1 - Yes, temperatures in Dwarf Fortress can go far, far below absolute zero, which is physically impossible. Considering Dwarf Fortress also allows Template:L, it's best not to ask questions.
2 - Technically, fractional temperatures are not possible in Dwarf Fortress, as they are stored as unsigned 16-bit integers.

Melting point

This is the temperature at which an object will melt. Any material with a melting point over 12,000°U is Template:L.

Boiling point

This is the temperature at which an object will evaporate.

Ignition point

This is the temperature at which an object will catch fire.

Specific heat

This determines how long it takes an object to heat up or cool down. An object with high specific heat will change temperature more slowly.