Celsius ↔ Fahrenheit
°F = (°C × 9/5) + 32
°C = (°F − 32) × 5/9
Celsius ↔ Kelvin
K = °C + 273.15
°C = K − 273.15
Fahrenheit ↔ Kelvin
K = ((°F − 32) × 5/9) + 273.15
°F = ((K − 273.15) × 9/5) + 32
Temperature is a measure of the average kinetic energy of particles in a substance. There are three main temperature scales used worldwide: Celsius, Fahrenheit, and Kelvin. Each scale has its own history and primary applications, making temperature conversion an essential skill in science, cooking, weather forecasting, and international communication.
The Celsius scale (°C), also known as centigrade, is used in most countries around the world and is the standard for scientific measurements. It was developed by Swedish astronomer Anders Celsius in 1742 and sets the freezing point of water at 0°C and the boiling point at 100°C under standard atmospheric pressure.
Celsius (°C)
The most widely used scale globally. Based on the freezing (0°C) and boiling (100°C) points of water. Used in weather forecasts, cooking, and everyday life in most countries.
Fahrenheit (°F)
Primarily used in the United States and some Caribbean nations. Water freezes at 32°F and boils at 212°F. Developed by Daniel Gabriel Fahrenheit in 1724.
Kelvin (K)
The SI unit for temperature used in scientific research. Starts at absolute zero (0 K = -273.15°C) where all molecular motion theoretically stops. No degree symbol is used.
Temperature conversion is essential in many everyday and professional situations:
- Cooking and Baking: Many recipes from different countries use different temperature scales. Converting oven temperatures accurately ensures proper cooking results.
- Travel: Understanding local weather forecasts when visiting countries that use different temperature scales.
- Health: Converting body temperature readings between Celsius and Fahrenheit for medical purposes.
- Science and Engineering: Kelvin is essential for thermodynamic calculations and scientific research.
- HVAC and Refrigeration: Understanding temperature specifications for heating, cooling, and refrigeration systems.
Disclaimer: Temperature conversions are mathematical estimates and may vary slightly due to rounding. The conversions provided are accurate to two decimal places for most practical purposes. For scientific applications requiring extreme precision, additional decimal places may be necessary.