Conversions
Temperature Converter
Use the temperature converter to switch between Celsius, Fahrenheit, and Kelvin for science, weather, and cooking.
Converted temperature
—
- Kelvin
- —
Student quick launch
Grade planning, algebra checks, and formulas students reach for most.
Study path
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What the temperature converter solves
Use the temperature converter to switch between Celsius, Fahrenheit, and Kelvin for science, weather, and cooking.
Formula
How to use it
- Enter the temperature.
- Choose the starting scale.
- Choose the target scale.
How to read the answer
Kelvin starts at absolute zero, while Celsius and Fahrenheit use different offsets and step sizes.
Common mistakes and edge cases
- Do not treat temperature conversion as a simple multiplier.
- Kelvin values cannot be negative.
- Use temperature difference conversion separately when converting intervals.
Worked examples
Room temperature
Converted temperature
22.2222
Boiling water
Converted temperature
212
Frequently asked questions
Why is Fahrenheit not just Celsius times a number?+
The scales have different zero points, so conversion needs both multiplication and addition.
What is absolute zero?+
Absolute zero is 0 K, equal to -273.15 C or -459.67 F.
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Last updated: May 8, 2026