Celsius to Fahrenheit Conversion
Quick formula: °F = (°C × 1.8) + 32 — with common conversions
⚡Quick Answer
°F = (°C × 1.8) + 32. Quick trick: double Celsius + 30. Key points: 0°C=32°F (freezing), 100°C=212°F (boiling), 37°C=98.6°F (body temp).
🌡️ Temperature Converter
Convert between Celsius, Fahrenheit, and Kelvin
1 Celsius = 33.8 Fahrenheit
Quick Reference
Water Freezes
0°C = 32°F = 273.15K
Water Boils
100°C = 212°F = 373.15K
Body Temperature
37°C = 98.6°F = 310.15K
Formulas
- °F = (°C × 9/5) + 32
- °C = (°F - 32) × 5/9
- K = °C + 273.15
Step-by-Step Guide
The Formula
°F = (°C × 9/5) + 32 — Multiply Celsius by 9, divide by 5, add 32. Or simply: °F = (°C × 1.8) + 32
Quick Mental Math
For a rough estimate: Double the Celsius, then add 30. Example: 20°C → 40 + 30 = 70°F (actual: 68°F).
Common Conversions
0°C = 32°F (freezing) | 10°C = 50°F | 20°C = 68°F | 25°C = 77°F | 30°C = 86°F | 37°C = 98.6°F (body temp) | 100°C = 212°F (boiling)
Example Calculation
Convert 25°C to Fahrenheit: 25 × 1.8 = 45, then 45 + 32 = 77°F. So 25°C = 77°F.
Frequently Asked Questions
What temperature is the same in Celsius and Fahrenheit?
-40 is where they meet! -40°C = -40°F. This is the only temperature that's the same on both scales.
How do I convert Fahrenheit to Celsius?
Use the reverse formula: °C = (°F - 32) × 5/9, or °C = (°F - 32) ÷ 1.8. Subtract 32 first, then divide.
Is 37°C a fever?
37°C (98.6°F) is normal body temperature. A fever is generally considered 38°C (100.4°F) or higher.