Temperature

Celsius, Fahrenheit, and kelvin

Celsius and Fahrenheit are offset scales for weather and cooking; kelvin is an absolute SI scale with the same degree size as Celsius but zero at absolute zero. Edit any field and the others update together using the standard identities.

Formulas

• °F = °C × 9/5 + 32
• °C = (°F − 32) × 5/9
• K = °C + 273.15

Worked example

350 °F → (350 − 32) × 5/9 ≈ 176.7 °C ≈ 449.8 K — a common baking setpoint. Absolute zero is 0 K = −273.15 °C = −459.67 °F.

Common mistakes

• Applying the °F formula to kelvin directly.
• Using room-temperature converters for UK gas mark recipes — see Oven Temperature.

FAQs

Full guide?

Celsius, Fahrenheit, and Kelvin.

When this page helps

Use it when you want a transparent, browser-side calculation with the assumptions spelled out — then verify anything high-stakes against primary docs, a professional, or your own measurements. The related links below point to sibling tools and longer guides when you need more context.

Accuracy notes

Results depend entirely on the numbers you enter and the simplified model described above. Device clocks, tape measurements, market rates, and recipe conventions can all differ from a perfect textbook case. If an output looks surprising, re-check units first, then re-read the formula section.

Related: Oven Temperature, Energy, Pressure.