Temperature Converter
Convert precise temperatures between Celsius, Fahrenheit, and Kelvin.
Unlike other units, temperature scales have different "zero" points, requiring specific formulas rather than simple multiplication. 0°C is accurate freezing water, 0°F is a brine solution, and 0 Kelvin is absolute zero—the point where all atomic motion stops.
Temperature Conversion
Convert temperature conversion instantly.
Key Temperatures
- Freezing point: 0°C = 32°F
- Boiling point: 100°C = 212°F
- Body temp: 37°C ≈ 98.6°F
- Room temp: 21°C ≈ 70°F
- Absolute Zero: -273.15°C (0 K)
- -40°C = -40°F (The intersection)
Frequently Asked Questions
Thermodynamics 101
1. Why is Kelvin used in science?
Kelvin is an Absolute Scale so it has no negative numbers. 0K is the theoretical limit of coldness where energy is minimal. This simplifies equations in physics (like the Ideal Gas Law: PV=nRT).
2. Celsius vs. Fahrenheit
Celsius is built around water (0-100 range states of matter).
Fahrenheit is built around humans. 0°F is really cold, 100°F is really hot. It offers more granularity for weather (70 vs 71 is a smaller step than 21 vs 22 C).