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Celsius to Fahrenheit Converter: °C to °F Instantly
Cooking a recipe from another country, checking the weather in °F, or setting an oven — temperature conversion comes up constantly. A Celsius to Fahrenheit converter handles it instantly, in both directions, with no mental math. No signup, nothing uploaded.
The formula
- °C → °F: (°C × 9/5) + 32
- °F → °C: (°F − 32) × 5/9
- Example: 25°C × 9/5 + 32 = 77°F
Convert temperature free with Tooly
The Tooly Celsius to Fahrenheit Converter makes it instant:
- Type a temperature → converted in real time as you type
- Both directions with a single swap button
- Formula shown so you learn the math too
- Free, no signup, runs in your browser
Convert temperature free — no signup
Open Temperature Converter
Open Temperature Converter
Reference table
| °C | °F | What it is |
|---|---|---|
| -40 | -40 | Equal on both scales |
| 0 | 32 | Freezing point |
| 20 | 68 | Room temperature |
| 37 | 98.6 | Body temperature |
| 100 | 212 | Boiling point |
When you'll use it
- Converting recipes between metric and imperial ovens
- Checking travel weather in a different unit
- Science homework and lab work
- For other units, the Unit Converter covers everything else
Frequently Asked Questions
Is this temperature converter really free? Yes — unlimited conversions, no account, no watermark.
At what temperature are °C and °F equal? At -40 — the only point where both scales match.
Is my input uploaded? No — conversion runs entirely in your browser.
What else should I check? The Unit Converter handles length, weight, volume, and speed too.