Temperature Converter — Celsius, Fahrenheit, Kelvin & Rankine
Convert C ⇄ F ⇄ K ⇄ °R instantly with exact scientific formulas — weather, cooking, lab work.
Quick answer: Free temperature converter: C to F, F to C, Kelvin and Rankine — exact formulas, instant results, works offline.
How to use
- Type the temperature.
- Pick the from and to scales.
- The converted value appears instantly.
About this tool
Temperature is offset math, not simple multiplication — this tool applies the exact formulas (°F = °C × 9/5 + 32, K = °C + 273.15) live as you type, with sensible rounding for weather and full precision for lab use.
FAQ
How do I convert Celsius to Fahrenheit?
Why can't temperature use simple ratios?
Does it support Kelvin for science homework?
What is minus 40 in both scales?
Works offline?
Cooking conversions?
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