Convert Celsius to Fahrenheit instantly — with Kelvin, body temperature context, and step-by-step formula.
This free °C to °F converter uses the exact formula: °F = (°C × 9/5) + 32. The reverse is: °C = (°F − 32) × 5/9. Both formulas are exact with no rounding error in the conversion factor itself.
Celsius (°C) is the standard temperature scale used in most countries and in all scientific contexts. Fahrenheit (°F) is used primarily in the United States for everyday weather, cooking, and body temperature. The two scales cross at −40° (where −40°C = −40°F). Key landmarks: 0°C = 32°F (water freezes), 100°C = 212°F (water boils), 37°C = 98.6°F (body temperature).
Quick reference: 0°C = 32°F · 10°C = 50°F · 20°C = 68°F · 30°C = 86°F · 37°C = 98.6°F · 100°C = 212°F