Temperature Converter
Temperature is a physical quantity expressing hot and cold. Unlike other physical dimensions that start at zero, temperature scales often have arbitrary zero points (like the freezing point of water) or are based on absolute thermodynamic limits (like Absolute Zero).
This professional converter provides instant, bidirectional translation between the modern Celsius, Fahrenheit, and Kelvin scales used in science and daily life. It also supports engineering scales like Rankine and historical scales like Newton and Delisle for educational and scientific completeness.
Core Units
StandardScientific
EngHistorical / Obsolete
HistoryAbsolute Zero Reference
- Kelvin: 0 K
- Celsius: -273.15 °C
- Fahrenheit: -459.67 °F
- Rankine: 0 °R
Common Pitfalls
Converting temperature is distinct from other units because it involves an offset (addition/subtraction) rather than just simple multiplication.
- Absolute Scales: Kelvin and Rankine start at Absolute Zero and cannot be negative.
- Degrees vs Units: We say “Degrees Celsius” and “Degrees Fahrenheit”, but just “Kelvin” (not degrees Kelvin).
- Delisle: This scale is inverted; higher numbers mean colder temperatures (0°De is boiling water, 150°De is freezing).
References
How to Use This Converter
Instantly convert across 8 different temperature scales.
Enter Temperature
Type the value into the known field (e.g., enter “37” in Celsius).
View Equivalents
The converter instantly calculates the values for all other scales, including historical ones.
Copy Result
Click the button to copy the precise value.