Celsius to Fahrenheit Converter
Convert Celsius to Fahrenheit and Fahrenheit to Celsius. Free, fast and private.
Your result will appear here.
Formula: °F = (°C × 9/5) + 32 — °C = (°F − 32) × 5/9.
How to use Celsius to Fahrenheit Converter
- Enter the temperature in the Amount box.
- Choose Celsius or Fahrenheit as the From unit, then the other as the To unit.
- The result updates as you type — or press Convert. Use Swap to reverse the direction.
- Press Copy Result to copy the answer.
Note: this tool runs in your browser. Nothing is uploaded.
Frequently Asked Questions
How do I convert Celsius to Fahrenheit?
°F = (°C × 9/5) + 32. So 25 °C = 77 °F, 0 °C = 32 °F and 100 °C = 212 °F.
How do I convert Fahrenheit to Celsius?
°C = (°F − 32) × 5/9. So 77 °F = 25 °C, 32 °F = 0 °C and 212 °F = 100 °C.
Is the Celsius to Fahrenheit Converter free?
Yes, it is 100% free with no sign-up. Your data stays in your browser.
Does it work on mobile?
Yes, it is fully mobile-friendly and works in any modern browser on phone, tablet or computer.