Convert between kelvin, Celsius, Fahrenheit, Rankine, Reaumur, and other temperature interval units with scientific precision.
The kelvin is the SI unit of thermodynamic temperature. It is an absolute temperature scale where zero kelvin (-273.15°C) is absolute zero. 0 K = -273.15°C.
Common uses: Scientific research, physics, chemistry, and international standards.
The Celsius scale is a temperature scale where water freezes at 0°C and boils at 100°C at standard atmospheric pressure. °C = K - 273.15.
Common uses: Everyday weather, medicine, cooking, and most scientific applications.
The Fahrenheit scale is used primarily in the United States. Water freezes at 32°F and boils at 212°F. °F = (°C × 9/5) + 32.
Note: The interval conversion factor is 1.8 (or 9/5).
The Rankine scale is an absolute temperature scale based on Fahrenheit intervals. °R = K × 1.8.
Application: Used in some engineering applications, particularly in the United States.
The Reaumur scale is a historical temperature scale where water freezes at 0°r and boils at 80°r. °r = °C × 0.8.
Note: Rarely used in modern applications but found in historical scientific texts.