Temperature Converter
Convert between Celsius, Fahrenheit, and Kelvin.
Temperature Reference
| From | To | Value |
|---|---|---|
| 0°C | Fahrenheit | 32°F |
| 100°C | Fahrenheit | 212°F |
| -40°C | Fahrenheit | -40°F |
| 0°C | Kelvin | 273.15 K |
| 37°C (body) | Fahrenheit | 98.6°F |
Temperature scales differ around the world and across scientific disciplines. Celsius (°C) is the standard in most countries for everyday use, Fahrenheit (°F) is used in the United States for weather and cooking, and Kelvin (K) is the scientific standard used in physics and chemistry. Unlike unit conversions that use simple multiplication, temperature conversions require formula-based calculations because the scales have different zero points.
How to use this tool
- Enter the temperature value in the input field.
- Select the scale you are converting from (Celsius, Fahrenheit, or Kelvin).
- Select your target scale. The converted value appears instantly.
Frequently asked questions
How do I convert Celsius to Fahrenheit?
Use the formula: °F = (°C × 9/5) + 32. For example, 20°C = (20 × 9/5) + 32 = 68°F.
What is absolute zero in Celsius and Fahrenheit?
Absolute zero is 0 Kelvin, which equals −273.15°C or −459.67°F. It is the lowest theoretically possible temperature.
At what temperature are Celsius and Fahrenheit equal?
Celsius and Fahrenheit are equal at −40°. That is, −40°C = −40°F.
What is normal human body temperature in Fahrenheit and Celsius?
Normal body temperature is approximately 37°C or 98.6°F, though it can vary slightly between individuals.