Temperature Unit Converter
Convert engineering quantities quickly and consistently.
Quick Access:
Manual Conversion Shortcut
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Equivalent Units
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Standard Reference Tables
SI System
| SI Unit | Formula / Base |
|---|---|
| Kelvin (K) | Absolute Zero = 0 K |
| Celsius (°C) | K = °C + 273.15 |
FPS System
| FPS Unit | Formula / Base |
|---|---|
| Rankine (°R) | Absolute Zero = 0 °R |
| Fahrenheit (°F) | °R = °F + 459.67 |
CGS System
| CGS Unit | Formula / Base |
|---|---|
| Celsius (°C) | Standard CGS thermal base |
Temperature
What is Temperature?
Temperature is the physical measure of the average kinetic energy of molecules within a substance. In process design, temperature is the primary driver for chemical kinetics, heat transfer rates, and thermodynamic phase changes.
Temperature conversions are critical for:
- Heat Exchanger Design: Calculating Log Mean Temperature Difference (LMTD).
- Reaction Engineering: Determining Arrhenius reaction rates and catalyst activation constraints.
- Distillation: Establishing bubble point and dew point curves.
Because temperature conversions often involve offsets (such as the +32 in Fahrenheit or +273.15 for Kelvin) rather than simple multipliers, utilizing a reliable engineering temperature converter ensures accuracy across Celsius, Fahrenheit, Kelvin, and Rankine scales.