Everyday Life
Convert Celsius ↔ Fahrenheit
Convert temperatures between Celsius and Fahrenheit instantly. Includes common reference points and formulas.
In this article
Formeln
°F = (°C × 9/5) + 32. °C = (°F - 32) × 5/9. Kopfrechnen C→F: verdoppeln und 30 addieren. 20°C: 20×2+30 = 70°F (exakt: 68°F). Deutschland nutzt Celsius. Fahrenheit begegnet bei US-Rezepten und Wetterberichten.
Referenzen
Wasser gefriert: 0°C = 32°F. Koerpertemperatur: 37°C = 98,6°F. Heisser Sommertag: 35°C = 95°F. Backofen: 180°C = 356°F. 200°C = 392°F.
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Frequently asked questions
Schnelle Umrechnung?▾
C→F: verdoppeln + 30. 25°C: 50+30 = 80°F (exakt 77°F). Genauigkeit ±2-3°F.
Ab wann Fieber?▾
38°C (100,4°F) oder hoeher. Ueber 39,5°C bei Erwachsenen: Arzt aufsuchen.
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