Temperature Converters

Pick a family to convert between common temperature scales using exact formulas.

Available converter families

Temperature scale mirror pairs

Every direction below is a dedicated page so you can move between Celsius, Fahrenheit, and Kelvin without swapping input values in-place.

Celsius to Fahrenheit Fahrenheit to Celsius Celsius to Kelvin Kelvin to Celsius Fahrenheit to Kelvin Kelvin to Fahrenheit

Related by Same Conversion

Example related converter

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Explanation

Temperature conversions are affine transforms, not pure multipliers. Each direction below uses an exact formula and has its own mirror page.

How to use this hub

  1. Choose a converter family.
  2. If converting to/from grams from a volume unit, select an ingredient.
  3. For pure unit changes (volume↔volume or weight↔weight), use universal conversions.

If your conversion includes grams, you’ll choose an ingredient; otherwise you won’t.

Frequently Asked Questions

Why are these formulas not a single multiply factor?

Temperature scales have different zero points, so each conversion needs an offset plus a scale ratio.

How do I switch direction?

Use Switch Units to navigate to the mirror page for the reverse formula.

Are Kelvin values constrained?

Kelvin is physically non-negative, but the calculator accepts any numeric input so you can inspect the formula behavior.