🌡️ °C ↔ °F Quick Convert
Fast Celsius to Fahrenheit and back
About this calculator
Instantly convert Celsius to Fahrenheit and back — for weather, cooking, and travel. Enter a temperature in either scale and get the other, with handy reference points like freezing, body temperature, and oven settings shown alongside.
Fahrenheit equals Celsius × 9/5 + 32; Celsius equals (Fahrenheit − 32) × 5/9. The crossover point both scales share is −40, and a quick mental estimate is double the Celsius and add 30 — close enough for weather.
Tip: Ovens are the main trap: 350°F is 175°C, not 350°C — always check which scale a recipe uses before preheating, or dinner becomes charcoal.