Convert Celsius to Fahrenheit Online
The Celsius and Fahrenheit scales are the two most common temperature measurement systems used around the world. While most countries use Celsius for everyday temperatures and scientific work, the United States primarily uses Fahrenheit. Converting between them is necessary when reading weather reports, following cooking recipes, interpreting medical data, or working with engineering specifications from different regions. The conversion formula from Celsius to Fahrenheit is °F = (°C × 9/5) + 32. This tool performs that calculation instantly for any temperature you enter. It also shows the formula so you understand how the conversion works. Common reference points: water freezes at 0°C (32°F) and boils at 100°C (212°F); a comfortable room is 22°C (71.6°F).
Celsius (°C)
Fahrenheit (°F)
Kelvin (K)
FAQ
- What is the formula for Celsius to Fahrenheit?
- Multiply the Celsius value by 9/5 (or 1.8), then add 32. Example: 100°C × 1.8 = 180, then 180 + 32 = 212°F.
- At what temperature are Celsius and Fahrenheit equal?
- At -40 degrees, the Celsius and Fahrenheit scales intersect. -40°C equals -40°F.
- Why does the US use Fahrenheit instead of Celsius?
- The US adopted the Fahrenheit scale before the Celsius scale became the international standard. While the scientific and medical communities use Celsius, everyday weather and cooking in the US still use Fahrenheit.