Degrees Celsius to Degrees Fahrenheit Converter
Convert degrees Celsius to degrees Fahrenheit instantly with this free degrees Celsius to degrees Fahrenheit converter. Enter any value to get an accurate temperature conversion, plus the formula, the conversion factor and a full reference table.
What is 1 degree Celsius in degrees Fahrenheit?
1 degree Celsius is equal to exactly 33.8 degrees Fahrenheit.
1°C → 33.8°F using °F = (°C × 9/5) + 32
1 degree Celsius = 33.8 degrees Fahrenheit
Degrees Celsius to Degrees Fahrenheit formula
°F = (°C × 9/5) + 32
Temperature scales use an offset as well as a ratio, so degrees Celsius and degrees Fahrenheit cannot be converted by multiplication alone.
Worked examples
- -20 degrees Celsius = -4 degrees Fahrenheit — -20°C → -4°F using °F = (°C × 9/5) + 32
- 10 degrees Celsius = 50 degrees Fahrenheit — 10°C → 50°F using °F = (°C × 9/5) + 32
- 30 degrees Celsius = 86 degrees Fahrenheit — 30°C → 86°F using °F = (°C × 9/5) + 32
Degrees Celsius to Degrees Fahrenheit conversion table
Every value below is calculated with the exact conversion factor and rounded for display.
| Degrees Celsius (°C) | Degrees Fahrenheit (°F) |
|---|---|
| -40 °C | -40 °F |
| -20 °C | -4 °F |
| -10 °C | 14 °F |
| 0 °C | 32 °F |
| 5 °C | 41 °F |
| 10 °C | 50 °F |
| 15 °C | 59 °F |
| 20 °C | 68 °F |
| 25 °C | 77 °F |
| 30 °C | 86 °F |
| 35 °C | 95 °F |
| 37 °C | 98.6 °F |
| 40 °C | 104 °F |
| 50 °C | 122 °F |
| 75 °C | 167 °F |
| 100 °C | 212 °F |
When you need to convert degrees Celsius to degrees Fahrenheit
- Setting an oven from a recipe written in the other scale.
- Reading a weather forecast while travelling.
- Interpreting a thermostat, fever reading or industrial spec sheet.
Getting a feel for the scale
A converted number is easier to trust when you can picture it. These reference points let you sanity-check the result at a glance.
Degree Celsius (°C)
- Water freezes at 0 °C and boils at 100 °C
- Room temperature is about 21 °C
Degree Fahrenheit (°F)
- Water freezes at 32 °F and boils at 212 °F
- Room temperature is about 70 °F
Mental shortcut
Double the Celsius value and add 30. 20 °C → 70 °F (exact answer 68 °F) — close enough for weather.
Common mistakes to avoid
- Multiplying without applying the offset. Temperature scales do not share a zero point, so a plain conversion factor gives the wrong answer.
- Converting a temperature difference the same way as a temperature. A change of 10 °C is a change of 18 °F, not 50 °F.
- Rounding too early. Convert first at full precision, then round the final answer to the precision the task actually needs.
How precise does the answer need to be?
For weather and cooking, one decimal place is more than enough. Clinical and laboratory readings normally need 0.1° resolution, and scientific work should carry the full value through the calculation before rounding.
How these units are defined
- Degree Celsius (°C): Water freezes at 0 °C and boils at 100 °C at sea level. This unit's relationship to the SI base unit is exact by definition, so no rounding enters the conversion factor.
- Degree Fahrenheit (°F): The everyday US temperature scale: water freezes at 32 °F, boils at 212 °F. This unit's relationship to the SI base unit is exact by definition, so no rounding enters the conversion factor.
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Frequently asked questions
- What is 1 degree Celsius in degrees Fahrenheit?
- 1 degree Celsius is equal to 33.8 degrees Fahrenheit.
- How many degrees Celsius are in one degree Fahrenheit?
- There are -17.2222222 degrees Celsius in 1 degree Fahrenheit.
- How do you convert degrees Celsius to degrees Fahrenheit?
- Use the formula °F = (°C × 9/5) + 32.
- What is 10 degrees Celsius in degrees Fahrenheit?
- 10 degrees Celsius is 50 degrees Fahrenheit. 10°C → 50°F using °F = (°C × 9/5) + 32.