Free Temperature Converter โ Celsius, Fahrenheit, Kelvin
Convert between Celsius, Fahrenheit, and Kelvin
Visual Thermometer
37ยฐC
98.6ยฐF
310.15 K
Common Temperatures
| Description | ยฐC | ยฐF | K |
|---|---|---|---|
| Absolute Zero | -273.15 | -459.67 | 0 |
| Water Freezes | 0 | 32 | 273.15 |
| Body Temperature | 37 | 98.6 | 310.15 |
| Water Boils | 100 | 212 | 373.15 |
| Oven (moderate) | 180 | 356 | 453.15 |
How to Convert Celsius to Fahrenheit
Multiply Celsius by 1.8 (or 9/5) then add 32. To go the other way, subtract 32 then multiply by 5/9.
Common Temperature Conversions
How Do I Convert Temperature?
Temperature conversion between Celsius, Fahrenheit, and Kelvin is essential for cooking, weather, science, and travel. Most of the world uses Celsius, while the US primarily uses Fahrenheit. Kelvin is used in scientific contexts.
What Is the Celsius to Fahrenheit Formula?
Multiply the Celsius value by 9/5 (or 1.8), then add 32. For example, 25ยฐC ร 1.8 + 32 = 77ยฐF. For a quick mental estimate: double the Celsius number and add 30.
Why Use a Free Online Temperature Converter?
An online converter gives you instant, accurate results without memorizing formulas. Whether you're adjusting a recipe from a foreign cookbook or checking travel weather forecasts, our tool handles Celsius, Fahrenheit, and Kelvin conversions with no sign-up required.
Celsius โ Fahrenheit
ยฐF = (ยฐC ร 9/5) + 32. Quick tip: double, subtract 10%, add 32.
Fahrenheit โ Celsius
ยฐC = (ยฐF โ 32) ร 5/9. Example: 98.6ยฐF = 37ยฐC.
Key Temperature Points
- โถ Water freezes: 0ยฐC = 32ยฐF = 273.15 K
- โถ Water boils: 100ยฐC = 212ยฐF = 373.15 K
- โถ Body temperature: 37ยฐC = 98.6ยฐF
- โถ Room temperature: ~20-22ยฐC = 68-72ยฐF
- โถ Absolute zero: -273.15ยฐC = -459.67ยฐF = 0 K
How Do I Convert Celsius to Fahrenheit Without a Calculator?
Multiply the Celsius value by 1.8 (or roughly double it), then add 32. For a quick mental shortcut, double the Celsius number and add 30 โ this gets you within a couple of degrees for everyday temperatures.
What Temperature Is a Fever in Both Scales?
A fever is generally considered 38ยฐC (100.4ยฐF) and above. Normal body temperature is around 37ยฐC (98.6ยฐF), though it can vary slightly between individuals throughout the day.