Direct reference
Frequently used Celsius-to-Fahrenheit values
Common conversions include 0°C = 32°F, 10°C = 50°F, 20°C = 68°F, 25°C = 77°F, and 30°C = 86°F.
These benchmark temperatures are useful for understanding weather reports, room thermostats, body-temperature readings, ovens, refrigerators, freezers, and scientific references.
To calculate a value not shown in the tables, multiply the Celsius temperature by 9/5 and add 32.
Enter any positive, negative, whole, or decimal Celsius value.
Quick-reference chart
Common Celsius temperatures in Fahrenheit
| Celsius | Fahrenheit | General reference |
|---|---|---|
| −40°C | −40°F | Scales are equal |
| −30°C | −22°F | Extreme cold |
| −20°C | −4°F | Very cold |
| −10°C | 14°F | Below freezing |
| 0°C | 32°F | Water freezes |
| 5°C | 41°F | Cold weather |
| 10°C | 50°F | Cool weather |
| 15°C | 59°F | Mild to cool |
| 20°C | 68°F | Mild room temperature |
| 25°C | 77°F | Warm |
| 30°C | 86°F | Hot weather |
| 35°C | 95°F | Very hot |
| 37°C | 98.6°F | Body reference |
| 40°C | 104°F | High temperature |
| 100°C | 212°F | Water boils at standard pressure |
Outdoor conditions
Common weather temperatures
| Celsius | Fahrenheit | General description |
|---|---|---|
| −20°C | −4°F | Very cold winter conditions |
| −10°C | 14°F | Cold and below freezing |
| 0°C | 32°F | Freezing point |
| 5°C | 41°F | Cold |
| 10°C | 50°F | Cool |
| 15°C | 59°F | Mild to cool |
| 20°C | 68°F | Mild |
| 25°C | 77°F | Warm |
| 30°C | 86°F | Hot |
| 35°C | 95°F | Very hot |
| 40°C | 104°F | Extreme heat |
Temperature descriptions are approximate. Humidity, wind, sunlight, clothing, shade, activity, and personal health affect how weather feels.
Indoor reference
Common room temperatures
Cool indoor setting
Mild room temperature
Common thermostat reference
Warm indoor setting
Warmer room
Warm indoor temperature
Comfortable indoor temperature varies with season, clothing, humidity, airflow, building design, and personal preference.
Thermometer readings
Common body-temperature conversions
| Celsius | Fahrenheit |
|---|---|
| 35°C | 95°F |
| 35.5°C | 95.9°F |
| 36°C | 96.8°F |
| 36.5°C | 97.7°F |
| 37°C | 98.6°F |
| 37.5°C | 99.5°F |
| 38°C | 100.4°F |
| 38.5°C | 101.3°F |
| 39°C | 102.2°F |
| 40°C | 104°F |
Body-temperature meaning depends on the person, measurement site, thermometer, age, symptoms, and medical guidance. Seek appropriate professional advice for health concerns.
Cooking reference
Common oven temperatures
| Celsius | Exact Fahrenheit | Common oven setting |
|---|---|---|
| 100°C | 212°F | About 210°F |
| 120°C | 248°F | About 250°F |
| 140°C | 284°F | About 285°F |
| 150°C | 302°F | About 300°F |
| 160°C | 320°F | 320°F |
| 170°C | 338°F | About 340°F |
| 180°C | 356°F | About 350°F or 355°F |
| 190°C | 374°F | About 375°F |
| 200°C | 392°F | About 390°F or 400°F |
| 220°C | 428°F | About 425°F or 430°F |
| 230°C | 446°F | About 450°F |
Oven controls often use rounded increments. Follow the recipe and appliance instructions, and account for fan or convection settings where applicable.
Scale landmarks
Freezing and boiling reference points
Under standard reference conditions
At standard atmospheric pressure
Both scales show the same number
Water's boiling temperature changes with atmospheric pressure, including differences caused by elevation.
Using reference values
How should conversions be rounded?
Whole degrees are usually sufficient for general weather comparison. Decimal precision may be useful for body temperature, thermostats, laboratories, and technical measurements.
Readable forecast comparison
Useful thermostat detail
Follow the source specification
Keep the original temperature during the calculation and round only the final Fahrenheit result.
Continue reading
Related Celsius-to-Fahrenheit guides
Questions and answers
Frequently asked questions
What is 20 degrees Celsius in Fahrenheit?
Twenty degrees Celsius equals 68 degrees Fahrenheit.
What is 25 degrees Celsius in Fahrenheit?
Twenty-five degrees Celsius equals 77 degrees Fahrenheit.
What is 30 degrees Celsius in Fahrenheit?
Thirty degrees Celsius equals 86 degrees Fahrenheit.
What is 37 degrees Celsius in Fahrenheit?
Thirty-seven degrees Celsius equals 98.6 degrees Fahrenheit.
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Use the Celsius to Fahrenheit Converter
Enter any positive, negative, whole, or decimal Celsius temperature to calculate Fahrenheit instantly.
Open Celsius to Fahrenheit ConverterLast updated: July 27, 2026