# What is *temperature difference*?

**Temperature Difference**is the difference between two temperatures of the same scale.

## Input

**Degree Fahrenheit**is defined by two fixed points, the freezing point (32°) and the boiling point (212°) of water. In temperature difference, 1°F is the same as 1°R (Degree Rankine).

## Output

**Kelvin**is the base unit of temperature in the International System of Units (SI). In temperature difference, 1K is the same as 1°C (Degree Celsius).