104°F to Celsius
104 °F is 40.0 °C. 104 °F is a high fever — exactly 40 °C — worth medical attention, especially in children.
40.0 °CCelsius
104 °FFahrenheit
−32 ×5/9formula
Nearby temperatures
| °F | °C |
|---|---|
| 102 °F | 38.9 °C |
| 103 °F | 39.4 °C |
| 104 °F | 40.0 °C |
| 105 °F | 40.6 °C |
| 106 °F | 41.1 °C |
Body-temperature notes follow the common clinical convention (fever ≥ 100.4 °F / 38.0 °C). Readings vary with thermometer type and time of day — general information, not medical advice.
Frequently asked questions
What is 104 degrees Fahrenheit in Celsius?
104°F equals 40.0°C.
Is 104°F a fever?
Yes — 100.4 °F (38.0 °C) and above is commonly counted as a fever.