🌡️ Celsius to Fahrenheit Converter
Convert Celsius temperatures to Fahrenheit, both directions.
About this tool
Converts temperatures between Celsius and Fahrenheit using the standard formula F = C × 9/5 + 32.
Useful for weather, oven temperatures, and body temperature readings when a recipe or a thermostat uses the scale you're not used to.
Worked example
A 20°C spring day is 68°F, and a 350°F oven is about 177°C.
How to use it
- Enter a temperature in Celsius.
- The Fahrenheit equivalent appears instantly.
- Swap direction to convert Fahrenheit back to Celsius.
Tips
- Body temperature: 37°C (normal) is 98.6°F.
- Water freezes at 0°C / 32°F and boils at 100°C / 212°F at sea level.
- For a rough mental estimate: double the Celsius figure and add 30 — it's close enough for weather chat, not for baking.
FAQ
What's the exact formula?
Fahrenheit = Celsius × 9/5 + 32, and the reverse is Celsius = (Fahrenheit − 32) × 5/9.
Why does the US still use Fahrenheit?
Historical convention — most of the world switched to Celsius through the 20th century, but the US kept Fahrenheit for everyday weather and cooking.
Is there a temperature where both scales agree?
Yes — −40° is the same on both scales: −40°C equals −40°F.
From the blog: getting the most out of this tool
Oven temperature conversions are a classic reason people land on this page mid-recipe with flour on their hands — so we kept the layout to one field, one instant answer, nothing else to scroll past.
The swap button remembers your last input, so switching from "what's 180°C in Fahrenheit" to "what's 350°F in Celsius" takes one tap, not a page reload.
📖 Want the fuller explanation?
See Metric vs Imperial Units for the reasoning behind this calculation, with worked examples.