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General Information, Facts & Tables
[Temperature Converter]

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Overview

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Temperature units have different set points for zero, so the conversion between units cannot be performed using a single coefficient. The formula for each conversion is listed in the Units section.

  1. Enter the value to convert in the "From" edit control.
  2. Select the measurement unit that the value is currently in from list underneath the "From" edit control.
  3. Select the measurement unit to convert the value to from the list underneath of the "To" edit control.
  4. The "Convert" button is only required when the "From" value is changed. When selecting "to" or "From" units from the drop down lists the conversion is performed automatically.

The history of conversions listed underneath the converter can be cleared by pressing the "Clear History" button.
The icons at the right of the controls allow data to be exchanged with the "Cookie Clipboard".

See Also: Open Another, Common Unit ConvertersMetric Measurement SystemMeasurement units named after people
 

Calculator

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From 

 

To

Units

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Unit

Symbol

Relationship from base unit

Relationship to base unit

Celcius

ºC

K = ºC + 273.15

ºC = K - 273.15

Centigrade

 

K = centigrade + 273.15

centigrade = K - 273.15

Fahrenheit

ºF

K = (ºF + 459.67) / 1.8

ºF = (K * 1.8) - 459.67

Kelvin

K

Base unit

Base unit

Rankine

ºR

K = ºR / 1.8

ºR = K * 1.8

Réaumur

ºr

K = (ºr / 0.8) + 273.15

ºr = (K - 273.15) * 0.8

 

Notes

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For a wider range of conversion units and greater precision see G.I.F.T. Converter.