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Temperature (sometimes called thermodynamic temperature) is a measure of the average kinetic energy of the particles in a system. Temperature is the degree of "hotness" ( or "coldness") - a measure of the heat intensity. The most common symbol or abbreviation for temperature is T. When two objects of different temperatures are in contact - the warmer object becomes colder while the colder object becomes warmer. This means that heat flows from the warmer to the colder object. Temperature ConverterConvert between °C (Celsius), °F (Fahrenheit), K (Kelvin) and °R (Rankine) with the calculator below: Temperature °C °F K °R
Temperature Converter - Web AppAdd the Temperature Converter Web App to your mobile device or desktop. The App is saved in your browser and works offline automatically after first visit. Degree Celsius (°C) and Degree Fahrenheit (°F)A thermometer can help us determine how cold or hot a substance is. Temperature is in most of the world measured and reported in degrees Celsius (°C). In the U.S. it is common to report temperature in degrees Fahrenheit (°F). In the Celsius and Fahrenheit scales the temperatures where ice melts (water freezes) and water boils are used as reference points.
In the Celsius scale there are 100 degrees between the freezing point and the boiling point of water compared to 180 degrees in the Fahrenheit scale. This means that 1 °C = 1.8 °F (check the section about temperature differences below). Values can be converted between the two temperature units by using the equations:
Celsius vs. Fahrenheit
Example: A patient with SARS (Severe Acute Respiratory Syndrome) has a temperature of 106 °F. What is the temperature in Celsius?
Temperature Conversion Table - oC vs °FTemperature Difference - or Temperature Change - degree Celsius versus degree FahrenheitNote that for temperature difference (change) - as used in heat loss diagrams
ΔT(°C) = ΔT(°F) / 1.8 (3) ΔT(°F) = 1.8 ΔT(°C) (4) where ΔT(°F) = temperature difference (°F) ΔT(°C) = temperature difference (°C) Example: Water is cooled from 100°C to 60°C. What is the temperature difference in °F? Temperature difference in degrees Celsius: ΔT(°C) = 100 °C - 60 °C = 40 C° Note that °C is used for actual temperatures (temperature relative to 273.15 K) and C° is used for temperature differences. Temperature difference in degrees Fahrenheit calculated by using (1) 100 °C = 1.8 (100 °C) + 32 = 212 °F 60 °C = 1.8 (60 °C) + 32 = 140 °F ΔT(°F) = 212°F - 140°F = 72 °F Temperature difference in degrees Fahrenheit calculated by using (3) ΔT(°F) = 1.8 (40 C°) = 72 °F Temperature Difference ConverterTemperature Difference C° °F
Kelvin - KAnother scale (common in science) is Kelvin, or the Absolute Temperature Scale. On the Kelvin scale the coldest temperature possible, -273 °C, has a value of 0 Kelvin (0 K) and is called the absolute zero. Units on the Kelvin scale are called Kelvins (K) and no degree symbol is used. The Kelvin has the same incremental scale as the Celsius scale and one unit Kelvin is equal in size to one unit Celsius:
To calculate a Kelvin temperature, add 273 to the Celsius temperature:
Example: What is the normal body temperature of 37 oC in the Kelvin scale?
Degree Rankine - RIn the English system the absolute temperature is in degrees Rankine (R), not in Fahrenheit:
Celcius to Fahrenheit Converter (and vice versa)Download and print Celsius to Fahrenheit Converter! |