What's the formula for Celsius to Fahrenheit?

°F = (°C × 9/5) + 32. So 20°C = (20 × 1.8) + 32 = 68°F. The converter handles negatives and decimals.

What's 0 Kelvin in Celsius?

0 K = -273.15°C — absolute zero, the lowest temperature physically possible.

Is body temperature 37°C the same as 98.6°F?

Yes — 37.0°C = 98.6°F is the classic 'normal' body temperature reading.

How do I quickly estimate °F from °C in my head?

Double the Celsius value and add 30. Example: 20°C → (20×2)+30 = 70°F. Close enough for weather forecasts (actual: 68°F).

Filenify

Temperature Converter

Convert Celsius, Fahrenheit, and Kelvin instantly. Includes common reference temperatures.

From

0 °C = 32 °F

Common temperatures

Freezing: 0°C = 32°F
Boiling: 100°C = 212°F
Body temp: 37°C = 98.6°F
Freezing: 32°F = 0°C

About Temperature Converter

Temperature conversion between Celsius, Fahrenheit, and Kelvin is the one conversion nobody can do in their head reliably — the offset in the Celsius-to-Fahrenheit formula trips up almost everyone. Filenify's temperature converter handles all three units with instant two-way updates and shows the underlying formula alongside the result, so you can learn the math while getting the answer. Reference temperatures (water freezing, boiling, human body, absolute zero) are one click away for sanity checks. Handles negatives and decimals correctly — no weird edge cases around zero.