Temperature symbol "
Θ", base unit is kelvin .
Kelvin unit (K) is the base unit of temperature. other units Celsius (°C), and Fahrenheit (°F).
Kelvin (symbol: K) = Celsius + 273.15
Celsius (°C) = Kelvin - 273.15
Celsius (°C) = (Fahrenheit - 32) × 5/9
Fahrenheit (°F) = (Celsius x 9/5) + 32
Fahrenheit (°F) = (9/5 × Celsius (°C)) + 32.
Rankine (°R) = Celsius (°C) × 9/5 + 491.67