C to F Converter
Convert Celsius (°C) to Fahrenheit (°F). Includes rounding controls, common temperature references, and input validation.
Enter °C then convert. Press Ctrl/Cmd + Enter.
Result will appear here.
| Reference | °C | °F |
|---|
Privacy: runs locally in your browser. No inputs are stored or transmitted.
How it works
°F = (°C × 9/5) + 32
Reverse: °C = (°F − 32) × 5/9
Examples
- 0°C = 32°F
- 25°C = 77°F
- 100°C = 212°F
FAQ
- What is the formula for converting °C to °F?
°F = (°C × 9/5) + 32.
- Can Celsius values be negative?
Yes. Celsius can be below 0 (e.g., −10°C). The converter supports negative values.
- Is there a minimum possible temperature?
Yes. Absolute zero is −273.15°C. Values below that are not physically meaningful; this tool flags them as invalid.
- Are my inputs stored?
No. All calculations run locally in your browser.