About Temperature Scales

• infoCelsius (°C)

  The Celsius scale uses the freezing point of water (0°C) and boiling point (100°C) as reference points.

  Key Points: Water freezes at 0°C and boils at 100°C at standard pressure.

• infoFahrenheit (°F)

  The Fahrenheit scale sets water's freezing point at 32°F and boiling at 212°F.

  Key Points: Water freezes at 32°F, boils at 212°F, and normal body temperature is 98.6°F.

• infoKelvin (K)

  Kelvin is an absolute temperature scale where 0K is absolute zero (the theoretical absence of all thermal energy).

  Key Points: Absolute zero is 0K (-273.15°C), water freezes at 273.15K, and boils at 373.15K.

• infoRankine (°R)

  Rankine is an absolute scale that uses Fahrenheit degrees for interval measurements.

  Key Points: Absolute zero is 0°R, water freezes at 491.67°R, and boils at 671.67°R.

• infoNewton (°N)

  The Newton scale was created by Isaac Newton with 0°N at water's freezing point and 33°N at water's boiling point.

  Key Points: Water freezes at 0°N and boils at 33°N. Rarely used today.