Temperature Converter
Convert between Celsius, Fahrenheit, Kelvin and Rankine, for weather, cooking, fever and science.
About the Temperature Converter
Celsius sets water's freezing point at 0° and boiling at 100° (at sea level). Fahrenheit puts them at 32° and 212°, so each Celsius degree is 1.8 Fahrenheit degrees.
Kelvin is the SI unit used in science. It starts at absolute zero, −273.15 °C, and its steps are the same size as Celsius degrees.
The formula
°F = °C × 9/5 + 32, °C = (°F − 32) × 5/9
- K
- °C + 273.15 (kelvin has no degree sign)
- °R
- °F + 459.67 (Rankine, used in some US engineering)
Temperature scales have different zero points, so you can't convert with a single multiplier. −40 is the same in Celsius and Fahrenheit.
Common conversions
| From | To |
|---|---|
| 0 °C | 32 °F |
| 37 °C | 98.6 °F |
| 100 °C | 212 °F |
| 32 °F | 0 °C |
| 98.6 °F | 37 °C |
| 350 °F | 176.6666667 °C |
| 0 °C | 273.15 K |
| -40 °C | -40 °F |
How to read your result
- Negative values are allowed.
- The table shows the temperature on all four scales.
Worked example
Example: 28 fahrenheit = -2.222222222 °C
- Inputs: Value: 28; From: Fahrenheit (°F); To: Celsius (°C).
- Formula: °F = °C × 9/5 + 32, °C = (°F − 32) × 5/9
- Result: 28 fahrenheit = -2.222222222 °C
Questions people ask
What is a normal body temperature?
About 37 °C (98.6 °F); anything from about 36.1 °C to 37.2 °C (97 °F to 99 °F) is common in healthy adults.
What oven temperature is 180 °C?
356 °F, usually rounded to 350 °F on recipes. 200 °C is 392 °F (about 400 °F).