Scales of temperature

Celcius scale

Fahrenheit scale

Kelvin scale

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There are 3 types of temperature scale

Celcius scale =100 degree celcius

Fahrenheit scale=32°F for water and 212°F for boiling point

Kelvin scale = 273K

SI unit of temperature is Kelvin

Scales of thermometers
Celsius scale
Celsius is the common unit of measuring
temperature, termed after Swedish astronomer,
Anders Celsius in 1742, before that it was
known as Centigrade as thermometers using
this scale are calibrated from (Freezing point
of water) 0°C to 100°C (boiling point of water).
In Greek, ‘Centium’ means 100 and ‘Gradus’
means steps, both words make it centigrade and
later Celsius.

Fahrenheit Scale
Fahrenheit is a Common unit to measure
human body temperature. It is termed after the
name of a German Physicist Daniel Gabriel
Fahrenheit. Freezing point of water is taken as
32°F and boiling point 212°F. Thermometers with
Fahrenheit scale are calibrated from 32°F to 212°F.

Kelvin scale
Kelvin scale is termed after Lord Kelvin.
It is the SI unit of measuring temperature and
written as K also known as absolute scale as it
starts from absolute zero temperature.