Temperature Converter (°C, °F, K)
Convert Celsius, Fahrenheit, Kelvin and Rankine, with body and weather reference points.
Result
How to use
- 1
Type the temperature you want to convert.
- 2
Pick the From and To units — or press Swap to flip them.
- 3
See the answer, the formula, every other unit and a ready table of common values.
Questions
How do I convert Celsius to Fahrenheit?
°F = °C × 9/5 + 32. So 37 °C = 98.6 °F. To go back, °C = (°F − 32) × 5/9.
What is a fever in Fahrenheit?
A temperature of 38 °C (100.4 °F) or higher is usually treated as a fever. Normal body temperature is about 36.5–37.5 °C (97.7–99.5 °F).
Why can Kelvin not be negative?
Kelvin starts at absolute zero (−273.15 °C), the coldest possible temperature, so there are no negative kelvins. Rankine is the same idea using Fahrenheit-sized degrees.
About this Temperature tool
Temperature Converter (°C, °F, K) — Convert Celsius, Fahrenheit, Kelvin and Rankine, with body and weather reference points. It is one of 200 free tools on namasivayam.in, made by software engineer Namasivayam Vadivelan for everyday use in India.
Everything is calculated instantly in your browser: nothing you type or upload is sent to any server, there is no sign-up, and it works on mobile and desktop. Type the temperature you want to convert.
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Results are estimates to help you plan. They are not financial, tax or medical advice.