What Is 37°C in Fahrenheit?
37 degrees Celsius is exactly 98.6 degrees Fahrenheit.
How to Convert Celsius to Fahrenheit
To convert degrees Celsius to degrees Fahrenheit, multiply by 9/5, then add 32.
For example: 25 °C × 9/5 = 45, and 45 + 32 = 77 °F.
Where You Meet This Number
Thirty-seven degrees is the figure everyone learns as normal body temperature, and 98.6 °F is its American equivalent. Anyone reading a thermometer in the wrong scale needs this conversion before they can judge a reading.
A thermometer reading of 37.0 °C is 98.6 °F — squarely normal, whichever scale the device uses.
What People Get Wrong
The famous 98.6 °F is a conversion of a rounded 37 °C from 19th-century measurements, not a precise constant. Normal body temperature actually ranges from about 36.1 to 37.2 °C (97 to 99 °F), varies by person, and is lowest in the early morning.
Body Temperatures in Celsius and Fahrenheit
| Degrees Celsius (°C) | Degrees Fahrenheit (°F) |
|---|---|
| 35 | 95 |
| 35.5 | 95.9 |
| 36 | 96.8 |
| 36.5 | 97.7 |
| 37 | 98.6 |
| 37.5 | 99.5 |
| 38 | 100.4 |
| 38.5 | 101.3 |
| 39 | 102.2 |
| 39.5 | 103.1 |
| 40 | 104 |
| 41 | 105.8 |
About These Scales
Degree Celsius
The Celsius scale puts the freezing point of water at 0 degrees and its boiling point at 100 degrees at sea level. It is the everyday temperature scale in nearly every country except the United States.
Degree Fahrenheit
On the Fahrenheit scale water freezes at 32 degrees and boils at 212 degrees, so one Fahrenheit degree is 5/9 the size of a Celsius degree. It remains the standard scale for weather, ovens and body temperature in the United States.
Definitions follow The SI Brochure, BIPM. See how we calculate for the exact values and rounding rules.
Frequently Asked Questions
Is 37 °C normal?
Yes. It is the textbook figure for normal body temperature, though the normal range spans roughly 36.1 to 37.2 °C.
At what temperature is it a fever?
38 °C (100.4 °F) is the threshold most health services use. Between 37.2 and 38 °C is usually described as elevated rather than feverish.
Why is 98.6 such a precise-looking number?
Because it is a conversion artefact: 37 °C converts to exactly 98.6 °F, and the apparent precision comes from the arithmetic rather than from the measurement.
What is 37 °C in kelvin?
37 °C is 310.15 K, the absolute-scale figure for normal body temperature.