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Temperature conversion · The exact answer, the formula, nearby values, and the full chart
100 °F = 37.7778 °C
100 °F is exactly 37.7778 °C. The working is shown below — every figure on this page is computed with the exact conversion formula, not copied from a rounded chart.
100 × -17.2222 = 37.7778 — so 100 °F is 37.7778 °C.
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| Fahrenheit (°F) | Celsius (°C) |
|---|---|
| 90 °F | 32.2222 °C |
| 92 °F | 33.3333 °C |
| 94 °F | 34.4444 °C |
| 96 °F | 35.5556 °C |
| 98 °F | 36.6667 °C |
| 100 °Fthis page | 37.7778 °C |
| 102 °F | 38.8889 °C |
| 104 °F | 40 °C |
| 106 °F | 41.1111 °C |
| 108 °F | 42.2222 °C |
| 110 °F | 43.3333 °C |
100 °F is exactly 37.7778 °C. The figure is computed with the exact conversion formula, not rounded from a chart: 100 × -17.2222 = 37.7778 — so 100 °F is 37.7778 °C.
Celsius = Fahrenheit × -17.2222. The two scales meet at −40, the one temperature that reads the same number in both Celsius and Fahrenheit.
100 °F is 310.928 K. Convert to Celsius first — (100 − 32) × 5/9 = 37.7778 °C — then add 273.15.
Use the Fahrenheit to Celsius converter on this page for any value, or open the printable fahrenheit to celsius chart to look up the whole range at a glance.
Need the opposite direction? Use the Celsius to Fahrenheit Converter to convert celsius back to fahrenheit.
Browse every tool in this category on the Temperature Converter hub page.