Precise temperature readings are vital for cooking, science, and weather forecasting. Use our free Temperature Converters to switch between different scales instantly.
Browse the list below to convert between the most common units: Celsius (°C), Fahrenheit (°F), and the scientific standard, Kelvin (K).
Master Temperature Converter
Comprehensive Temperature Directory
Our Master Converter supports all major thermodynamic scales. Explore common conversion pairs below.
Standard Scales
- Celsius to Fahrenheit
- Fahrenheit to Celsius
- Celsius to Kelvin
- Fahrenheit to Kelvin
- Kelvin to Celsius
- Kelvin to Fahrenheit
Scientific Scales
- Kelvin to Rankine
- Rankine to Kelvin
- Celsius to Rankine
- Fahrenheit to Rankine
- Rankine to Celsius
- Rankine to Fahrenheit
Historical Scales
- Celsius to Réaumur
- Réaumur to Celsius
- Fahrenheit to Réaumur
- Newton to Celsius
- Newton to Fahrenheit
- Réaumur to Kelvin
Quick References
- Water Freezing Point
- Water Boiling Point
- Body Temperature (Avg)
- Absolute Zero Reference
- Room Temperature Range
- Surface of the Sun
Frequently Asked Questions
A simple mental math trick is to double the Celsius figure, subtract 10%, and add 32. For a precise calculation, use the formula: (Celsius × 9/5) + 32.
Both scales use the same unit magnitude (a change of 1 degree is the same in both), but the starting points differ. Celsius is based on the freezing point of water (0°C), while Kelvin starts at absolute zero (0 K or -273.15°C).
The two scales intersect at exactly -40°. This means -40°C is equal to -40°F.
The Rankine scale is an absolute temperature scale (like Kelvin) but uses the Fahrenheit degree increment. It is primarily used in engineering systems in the United States.