How do we measure temperature?

In order to measure temperature, we need a "scale" to measure it with. When you want to know how tall you are, you use a ruler to measure your height. The scale that used to measure height is feet or meters. If you want to know how much you weigh, the scale used is pounds or kilograms.

The scale we use for temperature is "degrees" (°). Actually, there are three temperature scales that are used today. The Kelvin(K) scale is used by scientists. The Celsius scale (°C) is used in most of the world to measure air temperatures. In the United States, the Fahrenheit scale (°F) is used to measure air temperatures.



How do we measure temperature?

In order to measure temperature, we need a "scale" to measure it with. When you want to know how tall you are, you use a ruler to measure your height. The scale that used to measure height is feet or meters. If you want to know how much you weigh, the scale used is pounds or kilograms.

The scale we use for temperature is "degrees" (°). There are three temperature scales that are used today. The Kelvin (K) scale is used by scientists and for astronomical temperatures. The Celsius scale (°C) is used in most of the world to measure air temperatures. In the United States, the Fahrenheit scale(°F) is used to measure temperatures at or near the surface.

All three temperature scales are related to each other. To convert from one temperature scale to another, use the equations below:


  • Convert Celsius to Kelvin: K = °C + 273
  • Convert Celsius to Fahrenheit: °F = 1.8(°C) + 32



  • Temperature Scales

    The scale we use to measure temperature is "degrees" (°). There are three temperature scales that are used today. The Kelvin (K) scale is used by scientists and for astronomical temperatures. The Celsius scale (°C) is used in most of the world to measure air temperatures. In the United States, the Fahrenheit scale(°F) is used to measure temperatures at or near the surface, while the Celsius scale is use to measure upper air temperatures.

    All three temperature scales are related to each other through the "triple point of water". The triple point of water is the temperature at which water vapor, liquid water, and ice can coexist simultaneously. The triple point occurs at 0.01 °C (273.16 K or 32.02 °F). To convert from one temperature scale to another, use the equations below:


  • Convert Celsius to Kelvin: K = °C + 273
  • Convert Celsius to Fahrenheit: °F = 1.8(°C) + 32




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