Temperature Converter
Convert between Celsius, Fahrenheit, Kelvin, and Rankine temperature scales
From
Enter the temperature value and select the source unit
How It Works
Temperature conversions use specific formulas for each scale. All values are converted through Celsius as an intermediate step.
To
Select the target temperature unit and view the result
Quick Reference
Water freezes0°C = 32°F = 273.15K
Water boils100°C = 212°F = 373.15K
Body temperature37°C = 98.6°F
Room temperature20°C = 68°F = 293K
Absolute zero-273.15°C = 0K
Temperature Scales & Applications
Celsius (°C)
- Most commonly used worldwide
- Based on water's freezing (0°) and boiling (100°) points
- Standard in science and most countries
- Used in weather forecasts globally
- Part of the metric system
Fahrenheit (°F)
- Primarily used in the United States
- Water freezes at 32°F, boils at 212°F
- More granular scale for everyday temperatures
- Common in cooking and baking
- Used in some Caribbean countries
Kelvin (K)
- SI base unit for temperature
- Absolute temperature scale (no negative values)
- Zero Kelvin is absolute zero (-273.15°C)
- Used in scientific research and physics
- Essential in thermodynamics
Rankine (°R)
- Absolute scale like Kelvin
- Uses Fahrenheit degree increments
- Used in some engineering fields
- Common in thermodynamics in US
- Zero Rankine is absolute zero
Conversion Formulas
•
°C to °F: (°C × 9/5) + 32•
°F to °C: (°F - 32) × 5/9•
°C to K: °C + 273.15•
K to °C: K - 273.15•
°F to K: (°F + 459.67) × 5/9•
°R to K: °R × 5/9