Temperature
°Cto°F
Convert degrees Celsius (°C) to degrees Fahrenheit (°F).
Converter
°C
Accepts numbers or expressions, e.g. 150 + 14.7
Result
°F
Rendered to 6 significant figures.
Formula
Formula
°F = °C × 9⁄5 + 32
Temperature conversions involve different scale zero-points, so a single multiplicative factor does not exist. Apply the formula to each value individually.
Worked example
Convert 100 °C to °F.
- 01100 × 9⁄5 = 180.0000
- 02180.0000 + 32 = 212.0000 °F
Result100 °C = 212 °F
Conversion table
| °C | °F |
|---|---|
| -40 | -40 |
| -20 | -4 |
| 0 | 32 |
| 20 | 68 |
| 25 | 77 |
| 50 | 122 |
| 100 | 212 |
| 150 | 302 |
| 200 | 392 |
| 500 | 932 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the formula to convert °C to °F?
Temperature conversions are not a single multiplier because the scales have different zero points. Use °F = °C × 9⁄5 + 32 to convert any value of °C to °F.
How do I convert 1 °C to °F?
1 °C corresponds to 33.8 °F. Apply the formula °F = °C × 9⁄5 + 32 to your value.
How do I convert °F back to °C?
Use the inverse formula. For example, to go from °F back to °C, rearrange °F = °C × 9⁄5 + 32 for °C. See the °F to °C page for the direct formula.
When would I need to convert degree Celsius to degree Fahrenheit?
Temperature scale conversions are routine in process engineering: instrumentation often reads in °C or °F, while thermodynamic calculations (gas laws, enthalpy) require absolute units (K or °R). Always use absolute units for any equation involving a ratio of temperatures.
Is the conversion exact?
Yes — the temperature scale relationships are exact by definition (the Celsius–Kelvin offset is 273.15 exactly; the Fahrenheit–Rankine offset is 459.67 exactly).