Celsius to Fahrenheit Converter
Enter a temperature in Celsius (°C) to calculate its equivalent in Fahrenheit (°F).
The result shows the Fahrenheit equivalent of the Celsius value you entered.
How to read the result
The result shows the Fahrenheit equivalent of the Celsius value you entered.
How do you convert Celsius to Fahrenheit?
Fahrenheit = Celsius × 9 ÷ 5 + 32.
Formula
- The Celsius value is multiplied by 9 and divided by 5.
- 32 is added to the result.
- The resulting value is the temperature in Fahrenheit.
Example Celsius-to-Fahrenheit conversion
20°C equals 68°F, calculated as 20 × 9 ÷ 5 + 32.
Things to keep in mind
- This conversion isn't a simple multiplier — it includes both scaling and an offset.
- 0°C equals exactly 32°F, and 100°C equals exactly 212°F.
Comparisons
Values around 0°C correspond to around 32°F.
Based on the freezing point of water.
18-25°C corresponds to roughly 64-77°F.
The most common range encountered in daily life.
Values around 100°C correspond to around 212°F.
Based on the boiling point of water at sea level.
Celsius-to-Fahrenheit conversion guide
Celsius and Fahrenheit are two different scales used to measure temperature. This tool instantly converts a Celsius value, common in the metric world, into its Fahrenheit equivalent.
The conversion includes both a scale factor and an offset: Fahrenheit = Celsius × 9/5 + 32. For example, for 20°C: 20 × 9/5 = 36, then 36 + 32 = 68°F.
This tool is useful for interpreting US-based weather reports, oven temperatures in recipes, or scientific and medical measurements.
The two scales have different zero points: 0°C corresponds to 32°F, while -40 degrees gives the same value on both scales (-40°C = -40°F) — the single point where the two scales intersect.
Results are a mathematical conversion and are shown to one decimal place.
FAQ
How do you convert Celsius to Fahrenheit?
Multiply the Celsius value by 9/5 and add 32. For example, 20°C × 9/5 + 32 = 68°F.
What is 0°C in Fahrenheit?
0°C, the freezing point of water, equals exactly 32°F.
What is 100°C in Fahrenheit?
100°C, the boiling point of water at sea level, equals exactly 212°F.
Why does the formula have both multiplication and addition?
Because the Celsius and Fahrenheit scales start from different zero points; the conversion must account for both the scale difference (9/5) and the offset (32).
Can negative Celsius values be entered?
Yes, negative values (such as -10°C) can be entered and converted correctly.
What is this converter used for?
Comparing weather, recipe temperatures, or scientific measurements with US-based Fahrenheit figures.
Can I enter decimal Celsius values?
Yes, decimal values such as 36.6 can be entered.
How do I convert Fahrenheit to Celsius instead?
Use our separate 'Fahrenheit to Celsius Converter' tool.
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