0°C to 32°F
(0 × 9/5) + 32 = 32°F
water freezes
Celsius (°C) to Fahrenheit (°F) Converter
Celsius (°C) and Fahrenheit (°F) are temperature scales used to measure temperature.
Formula: °F = (°C × 9/5) + 32
Common reference points:
- Water freezing: 0°C = 32°F
- Water boiling: 100°C = 212°F
- Body temperature: 37°C = 98.6°F
Celsius to Fahrenheit Converter
Quick Answer
1 °C = 33.8 °F
Formula: Fahrenheit = (Celsius x 9/5) + 32
Formula verifiedLive calculation
To (Fahrenheit)
°F
Quick values
How to Convert Celsius to Fahrenheit
Use the exact formula °F = (°C × 9/5) + 32.
- Multiply the Celsius temperature by 9.
- Divide the result by 5.
- Add 32 and round only at the end.
Worked conversion examples
20°C to 68°F
(20 × 9/5) + 32 = 68°F
room temperature
25°C to 77°F
(25 × 9/5) + 32 = 77°F
warm day
37°C to 98.6°F
(37 × 9/5) + 32 = 98.6°F
body-temperature reference
180°C to 356°F
(180 × 9/5) + 32 = 356°F
common oven setting
−40°C to −40°F
(−40 × 9/5) + 32 = −40°F
the scales are equal
Mental shortcut: For a quick estimate, double the Celsius value and add 30. Use the exact formula when accuracy matters.
View the complete Celsius to Fahrenheit chart →Accuracy, standards, and review
Values use the exact temperature-scale relationship in the shared conversion engine. Intermediate values are not rounded; displayed answers are rounded only for readability.
Reviewed by the All Unit Conversions Editorial Team. Updated .
What are Temperature Scales?
Temperature scales are systems used to measure and quantify thermal energy. The two most common scales worldwide are Celsius (°C) and Fahrenheit (°F), each with different reference points and intervals.
The Celsius scale is defined by setting 0°C at water's freezing point and 100°C at water's boiling point at standard atmospheric pressure. The Fahrenheit scale sets 32°F as water's freezing point and 212°F as water's boiling point.
Learn more about temperature standards from Bureau International des Poids et Mesures (BIPM) or NIST.
Common Temperature Conversions
| Celsius (°C) | Fahrenheit (°F) | Common Reference |
|---|---|---|
| -40 | -40 | Equal temperature point |
| -18 | 0 | Average freezer temperature |
| 0 | 32 | Water freezing point |
| 10 | 50 | Cool day |
| 20 | 68 | Room temperature |
| 30 | 86 | Hot summer day |
| 37 | 98.6 | Normal body temperature |
| 100 | 212 | Water boiling point |
Practical Use Cases
- Weather Forecasting: Converting between scales when traveling or following international weather reports
- Cooking and Baking: Converting oven temperatures from recipes written in different standards (US vs. international)
- Healthcare: Converting body temperature readings between systems for medical assessment
- Science Education: Understanding temperature relationships for students learning physical sciences
- Industrial Processes: Setting and monitoring temperature controls in manufacturing that may use different scales
- Tourism: Understanding local temperature forecasts when traveling between regions using different scales
Educational Resource
This educational video explains the relationship between Celsius and Fahrenheit temperature scales and demonstrates how to convert between them with practical examples.
Conversion Tools
View the full Celsius to Fahrenheit conversion chart (HTML) →Download Conversion Chart (PDF)Get our comprehensive Celsius to Fahrenheit conversion chart for quick reference when you're offline.
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Celsius to Fahrenheit Conversion FAQs
Find answers to common questions about converting between Celsius and Fahrenheit temperatures.