Conversion
Celsius to Fahrenheit Converter
Convert between Celsius, Fahrenheit, and Kelvin instantly. Includes quick reference for cooking, weather, and body temperatures.
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Enter a temperature in any field to convert
Quick Reference Table
| °C | °F | K | Description |
|---|
How is this calculated?
Celsius to Fahrenheit:
F = C × 9/5 + 32
Fahrenheit to Celsius:
C = (F - 32) × 5/9
Celsius to Kelvin:
K = C + 273.15
Key points:
Water freezes: 0°C = 32°F = 273.15 K
Water boils: 100°C = 212°F = 373.15 K
C equals F at: -40°C = -40°F
Absolute zero: -273.15°C = -459.67°F = 0 KFAQ
Frequently asked questions about temperature conversion
How do I convert Celsius to Fahrenheit?
Multiply the Celsius temperature by 9/5 (or 1.8) and add 32. Formula: F = C × 9/5 + 32. For example, 25°C = 25 × 1.8 + 32 = 77°F.
How do I convert Fahrenheit to Celsius?
Subtract 32 from the Fahrenheit temperature and multiply by 5/9. Formula: C = (F - 32) × 5/9. For example, 72°F = (72 - 32) × 5/9 = 22.2°C.
At what temperature are Celsius and Fahrenheit equal?
Celsius and Fahrenheit are equal at -40 degrees. This is the only point where both scales intersect: -40°C = -40°F. You can verify: -40 × 9/5 + 32 = -72 + 32 = -40.
What is absolute zero?
Absolute zero is the lowest possible temperature: -273.15°C, -459.67°F, or 0 Kelvin. At this temperature, molecular motion theoretically stops. It has never been achieved in a laboratory.
What is normal body temperature in Celsius and Fahrenheit?
Normal human body temperature is approximately 37°C or 98.6°F. However, normal range varies from 36.1-37.2°C (97-99°F). A fever is typically defined as 38°C (100.4°F) or above.
What are common oven temperatures in Celsius and Fahrenheit?
Common oven temperatures: Low 150°C/300°F, Moderate 180°C/350°F, Moderately hot 190°C/375°F, Hot 200°C/400°F, Very hot 220°C/425°F, Extremely hot 250°C/480°F.