Celsius to Fahrenheit Converter (°C to °F)
Celsius and Fahrenheit use different zero points and different degree sizes. To convert, multiply the Celsius value by 9/5 and add 32. Water freezes at 0 °C (32 °F) and boils at 100 °C (212 °F).
Convert units
Instant calculation in your browser. No sign-up or upload.
1 °C = 33.8 °F
Calculation working
- Absolute temperature: convert through Celsius; temperature differences use a different rule.
- 1 °C
- (1 × 9/5) + 32 = 33.8 °F
Display: 10 significant digits. More digits do not make the original measurement more accurate.
Try a practical example
Batch conversion
One value per line, up to 200. Uses the selected °C → °F units. Invalid rows stay visible in the results and CSV.
Compare all units
Using this temperature converter
Convert absolute readings from weather reports, thermometers and equipment temperature limits.
These scales have different zero points. A temperature reading and a temperature rise are different quantities: a 10 °C rise is 18 °F, while an absolute reading of 10 °C is 50 °F.
Check before using the result
- Readings below absolute zero are rejected. Negative Celsius and Fahrenheit values can still be physically valid.
- Do not use this absolute-reading converter for a temperature difference, thermal rise or coefficient correction. Kelvin has no degree sign.
Definitions and method: NIST: unit conversion factors and rounding. Calculations use double-precision arithmetic; the display precision can be adjusted above.
Celsius to Fahrenheit conversion chart
| Celsius (°C) | Fahrenheit (°F) |
|---|---|
| -10 | 14 |
| 0 | 32 |
| 10 | 50 |
| 20 | 68 |
| 25 | 77 |
| 30 | 86 |
| 35 | 95 |
| 37 | 98.6 |
| 40 | 104 |
| 50 | 122 |
| 100 | 212 |
| 180 | 356 |
More conversions
Related Guides & Articles
How to Convert Celsius to Fahrenheit: Formula and Table
Exact conversion formulas both ways, worked examples, a reference table and mental shortcuts accurate enough for everyday use.
Read Article →SI Units Explained: Why Base Factors Matter
Understand how exact SI base-unit factors keep conversions precise across length, mass, energy and pressure.
Read Article →PDF to JPG: Complete Guide to Converting PDF Pages into Images
Learn how to convert PDF pages to JPG images, understand image quality and resolution, reduce file size, and choose the right format for documents, websites and online uploads.
Read Article →PDF to PNG: Complete Guide to Converting PDF Pages into High-Quality PNG Images
Learn how PDF to PNG conversion works, when PNG is better than JPG, how resolution affects image quality, and how to convert PDF pages into high-quality PNG images.
Read Article →