Fahrenheit to Celsius Converter
Kostenloser Temperaturrechner, Celsius, Fahrenheit und Kelvin mit Formeln Umrechnen
Fahrenheit
- Symbol
- °F
- System
- Metric/Imperial
- Dimension
- Various
Celsius
- Symbol
- °C
- System
- Metric/Imperial
- Dimension
- Various
Quick Reference Table
| Fahrenheit | Celsius | Celsius | Fahrenheit |
|---|---|---|---|
| 1 | -17.2222222222 | 1 | 33.8 |
| 2 | -16.6666666667 | 2 | 35.6 |
| 3 | -16.1111111111 | 3 | 37.4 |
| 5 | -15 | 5 | 41 |
| 10 | -12.2222222222 | 10 | 50 |
| 25 | -3.8888888889 | 25 | 77 |
| 50 | 10 | 50 | 122 |
| 100 | 37.7777777778 | 100 | 212 |
| 500 | 260 | 500 | 932 |
| 1000 | 537.7777777778 | 1000 | 1832 |
Conversion Formula
Celsius = Fahrenheit × -17.2222222222
Fahrenheit = Celsius × 33.8
Factors are from BIPM SI brochure and NIST SP 811, stored unrounded and computed via a base unit. Reverse factor is 1 ÷ -17.2222222222.
How to convert Fahrenheit to Celsius
Multiply the value in fahrenheit by -17.2222222222 to get celsius. For example, 5 Fahrenheit = -15 Celsius. All results in the temperatur converter update instantly as you type, so you can see every unit at once without manual math.
Common mistakes
Do not round the factor to -17. too early — keep full precision until the final display. For temperatur, always verify critical calculations (medicine, engineering) with a second source.
FAQ
- How many Celsius in 1 Fahrenheit?
- 1 Fahrenheit = -17.2222222222 Celsius.
- How many Fahrenheit in 1 Celsius?
- 1 Celsius = 33.8 Fahrenheit.
- What is the source?
- BIPM/NIST via OmniConverter base-unit engine. Source table and formula above are exact.
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