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Temperature Converter
A temperature converter helps in the conversion of the measurement units of the temperature recorded in a particular unit. Temperature expresses the degree of heat or cold of a solid, liquid, or gas. Temperature is measured using a thermometer. While Kelvin (K) is the SI unit of temperature, people generally use Centigrade or Celsius (°C) and Fahrenheit (°F) to measure temperature.
For example, the lowest practical temperature on Earth is 273.15 degrees Celsius. Celsius is a measure of temperature. This recording can be represented in Kelvin as 0 K. We use temperature converter to find the different readings of a given temperature on different unit measuring scales.
1.  Define Temperature Converter 
2.  Units of Temperature 
3.  Formula for Converting Temperature Scales 
4.  FAQs on Temperature Converter 
Define Temperature Converter
A temperature converter helps convert the temperature between Fahrenheit and Celsius scale. Temperature is measured using a thermometer. While Kelvin (K) is the SI unit of temperature, people generally use Centigrade or Celsius (°C) and Fahrenheit (°F) to measure temperature. The temperature converter formula is used to convert Celsius to Fahrenheit.
Units of Temperature
Different units can be used to record the temperature. The three different units used for measuring temperature are Celsius (°C) Fahrenheit (°F), and Kelvin (K). Kelvin is the SI unit of measuring temperature, whereas Fahrenheit and Celsius are commonly used scales.
Celsius
Celsius scale was Invented in 1742 by Swedish astronomer Anders Celsius and hence named after him. Celsius, also called centigrade, is based on the freezing point of water which is 0°, and the boiling point of water which is 100° The temperature in celsius is represented with °C. Normal human body temperature is 37°C.
Fahrenheit
The Fahrenheit scale is a temperature scale developed by Daniel Gabriel Fahrenheit and hence named after him. This scale has the boiling point of water at 212° F and the freezing point at 32° F. The temperature in Fahrenheit is represented with °F. The normal human body temperature is 98.6°F.
Kelvin
Kelvin is the SI unit of temperature. The unit symbol is K. It is named after the physicist William Thomson, 1^{st} Baron Kelvin (1824–1907). Here the degree symbol ° is not used to represent the temperature, unlike in Celsius or Fahrenheit.
Formula for Converting Temperature Scales
Temperature reading given in one unit can be converted into the other using certain conversion formulas. These conversion formulas can be studied as,
 Celsius to Fahrenheit Conversion
 Fahrenheit to Celsius Conversion
 Celsius to Kelvin Conversion
 Fahrenheit to Kelvin Conversion
Celsius to Fahrenheit Conversion
Temperature recorded in celsius can be represented in its fahrenheit equivalent using the Celsius to Fahrenheit conversion formula. The temperature converter formula to convert celsius to fahrenheit is given by, °F = (9/5) × (°C) + 32
Example: A normal body temperature is 37°C Fahrenheit. Convert 37°C to Fahrenheit.
Solution:
The temperature of a normal body in Celsius = 37°C. Convert 37°C temperature of the body into °F. Using Celsius to Fahrenheit conversion formula, F = (9/5)C + 32. Put the values, F = (9/5)(37)+32
F = 66.6 + 32
F = 98.6
Therefore, normal body temperature in Fahrenheit is 98.6°F
Fahrenheit to Celsius Conversion
Temperature recorded in Fahrenheit can be represented in its celsius equivalent using the Fahrenheit to Celsius conversion formula. The formula to convert Fahrenheit to celsius is given by, °C = (5/9) × (°F − 32)
Example: What is 115°F on the Celsius scale?
Solution:
Temperature in Fahrenheit = 115°F. Using Fahrenheit to Celsius conversion formula, °C = (5/9) × (°F − 32)
= (5/9) × (115 − 32)
= 46.11°F
Therefore, 115°F is 46.11°C on the centigrade scale.
Celsius to Kelvin Conversion
Temperature recorded in Celsius can be represented in its Kelvin equivalent using the Celsius to Kelvin conversion formula. The formula to convert Celsius to Kelvin is given by, K = °C + 273.15
Example: Convert 16°C into Kelvin.
Solution:
T(°C) = 16°C (Given). Using the Celsius to Kelvin conversion formula, T(K) = T (°C) + 273.15
16 + 273.15 = 289.15 K
Therefore, 16°C is equivalent to 289.15 K.
Fahrenheit to Kelvin Conversion
Temperature recorded in Fahrenheit can be represented in its Kelvin equivalent using the Fahrenheit to Kelvin conversion formula. The formula to convert Fahrenheit to Kelvin is given by, K = °F + 457.87
Example: Convert 100 degrees Fahrenheit to Kelvin.
Solution:
Temperature in Fahrenheit, T_{F} = 1000 F(Given). Using Fahrenheit to Kelvin Formula, T_{K }= 5/9(T_{F }+ 459.67)
= 5/9(100 + 459.67)
= 5/9(559.67)
= 310.93 K
Therefore, 100 degree Fahrenheit = 310.93 K
Here is a temperature conversion table for your easy reference!
Kelvin  Celsius  Fahrenheit 

273.15 K  0° C (freezing point of water)  32 °F 
274.15 K  1° C  33.8 °F 
275.15 K  2 °C  35.6 °F 
276.15 K  3°C  37.4 °F 
277.15 K  4°C  39.2 °F 
278.15 K  5°C  41.0 °F 
283.15 K  10°C  50.0 °F 
288.15 K  15°C  59.0 °F 
293.15 K  20°C  68.0 °F 
298.15 K  25°C  77.0 °F 
303.15 K  30°C  86.0 °F 
308.15 K  35°C  95.0 °F 
310.15 K  37°C (Normal body temperature)  98.6 °F 
313.15 K  40°C  104.0 °F 
323.15 K  50°C  122.0 °F 
333.15 K  60°C  140.0 °F 
343.15 K  70°C  158.0 °F 
353.15 K  80°C  176.0 °F 
363.15 K  90°C  194.0 °F 
373.15 K  100°C (boiling point of water)  212.0 °F 
473.15 K  200 °C  392.0 °F 
 A simple trick to remember the temperature conversion formula without fractions is 5(°F)= 9(°C) +160
 Another trick to convert Celsius to Fahrenheit is to multiply 1.8 to the Celsius degree and add 32
 To find the approximate temperature in degrees Fahrenheit, subtract 30 from the Celsius and then divide by 2
Important Notes
 Temperature is the degree of hotness of any object. A thermometer is used to measure temperature.
 Kelvin, Celsius, and Fahrenheit scales are used to measure temperature. Kelvin is the SI unit of temperature.
 ºFahrenheit = (ºCelsius × 9/5) + 32º
 ºCelsius = 5/9(Fahrenheit − 32º)
Solved Examples on Temperature Converter

Example 1: Convert 15°centigrade to Fahrenheit.
Solution:
We know that °F = (9/5)×(°C) + 32. Substituting °C = 15 We get, °F = (9/5)×(15) + 32
= 27 +32
= 59
Hence, 15°C is 59°F

Example 2: The room temperature recorded on a cold day was 10°C. What is the temperature in Fahrenheit?
Solution:
We know that °F = (9/5) × (°C) + 32. Substituting C = 10, we get °F = (9/5)×(10) + 32
= 18 +32
= 50
Therefore, Tim's room temperature is 50°F
Practice Questions on Temperature Converter
FAQs on Temperature Converter
Which is Better Celsius or Fahrenheit?
The celsius scale is good for measuring the temperature of the water. But Fahrenheit is more precise and for convenience, people measure the air temperature using the Fahrenheit scale.
What are the Formulas for Temperature Conversion?
The formulas for temperature conversion are given as,
 Celsius to Fahrenheit Conversion: °F = (9/5) × (°C) + 32
 Fahrenheit to Celsius Conversion: °C = (5/9) × (°F − 32)
 Celsius to Kelvin Conversion: K = °C + 273.15
 Fahrenheit to Kelvin Conversion: K = °F + 457.87
How do you Convert Celsius to Fahrenheit Fast?
To convert Celsius to Fahrenheit quickly, multiply 1.8 to the Celsius degree and 32 to get the Fahrenheit equivalent. You could also double the Celsius degree and reduce it by 10% (which is basically 1.8 times) and add 32 to it.
What Temperature in Fahrenheit is Degree Celsius?
Use the formula °C = (5/9) × (°F − 32) to convert the given celsius degree to Fahrenheit.
What is Degrees C Equal to in Fahrenheit?
Degrees C can be converted to Fahrenheit scale using the C to F conversion formula. 1ºC is equal to 33.8 Fahrenheit.
What are the 4 Units of Temperature?
There are three temperature scales used commonly in our daytoday lives: kelvin (K), centigrade or Celsius (C), and Fahrenheit (F). A fourth scale, known as the Rankine (R) temperature scale, is quite less often used, comparatively. The Kelvin is the S.I. unit of temperature measurement.
How do you Calculate F to C?
F to C conversion can be done using Fahrenheit to Celsius conversion formula. For a fast conversion simply, subtract 32 and multiply by 5556 (or 5/9).
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