Temperature Scale Converter
Switch between Celsius, Fahrenheit, and thermodynamic Kelvin scales with instantaneous formula previews.
All Temperature Scales
| Scale | Temperature |
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How to Use Temperature Converter
- Enter a numerical temperature into the value box.
- Choose your source scale (°C, °F, K, or °R).
- Select the desired output scale or compare all scales in the bottom table.
- Copy the result or review the mathematical formula used.
Technical Specifications & How It Works
Unlike linear unit conversions, temperature conversion involves both scaling factors and datum offsets (such as the +32 offset in Fahrenheit and 273.15 offset in Kelvin).
Absolute zero (0 K) corresponds to -273.15 °C and -459.67 °F, representing the point where all thermal motion ceases.
This tool evaluates temperature formulas client-side with zero tracking and full offline capabilities.
Frequently Asked Questions
What is the formula to convert Celsius to Fahrenheit?
Multiply the Celsius temperature by 9/5 (or 1.8) and add 32: °F = (°C × 1.8) + 32.
At what temperature are Celsius and Fahrenheit equal?
Celsius and Fahrenheit are equal at exactly -40 degrees (-40 °C = -40 °F).
What is Kelvin used for?
Kelvin is the SI base unit of thermodynamic temperature, utilized globally in scientific and engineering research.