Celsius to Fahrenheit
A Celsius reading and its Fahrenheit equivalent, side by side.
FREE - NO SIGN-UP - RUNS ON YOUR DEVICE
Readings are converted in your own tab
- °C → °Fand back again
- 1formula shown
- 0data sent out
- Freeno sign-up
What you can count on
- 1formula
- Printed next to the converted value
- So the arithmetic is visible
- 2scales
- Celsius on one side
- Fahrenheit on the other
- 0uploads
- The reading is converted here
- Nothing goes to a server
Celsius to Fahrenheit at a glance
- Category
- Temperature
- Input
- Celsius in, Fahrenheit out
- Output
- Fahrenheit and the formula
- Reverse
- Swap the menus to reverse it
- Processing
- Runs locally in your browser
- Which gallon
- US gallons, quarts and cups
- Price
- Free
- Account required
- No
How to use Celsius to Fahrenheit
- 1
Pick temperature
Choose temperature so both unit menus offer temperature scales.
- 2
Enter the Celsius figure
Type the reading and set the second menu to Fahrenheit.
- 3
Read the formula too
The Fahrenheit value appears with the formula. Copy result keeps the whole summary.
Frequently asked questions
Can I go from Fahrenheit back to Celsius?
Yes. Put Fahrenheit on the input side and Celsius opposite. The two menus are set independently, so either scale can be the starting point.
Why is a formula shown at all?
Because temperature is a scale conversion, not a single factor. Showing the arithmetic means you can check the answer rather than take it on trust.
Is the reading sent anywhere?
No. The conversion is done by the page you already loaded. Nothing you type is transmitted, and nothing is kept once the tab closes.
Why does my answer differ by a fraction?
The displayed figure is rounded to stay readable. A source carrying more decimal places can end on a different final digit for the same input.
Is Kelvin available?
Yes. Temperature has three units here, not two: Celsius, Fahrenheit and Kelvin, and any of the six directions between them works.
Why the formula is on screen
Temperature is a scale conversion rather than a plain multiplication, so the panel prints the formula next to the result. Choose temperature, enter the Celsius reading, and set Fahrenheit on the other side.
- The two scales have different zero points, so a factor alone will not convert between them.
- Seeing the arithmetic makes it easy to spot when the wrong scale is selected.
- The result is rounded before display, which is what makes it readable at a glance.
- The same temperature category handles the conversion in either direction.
Full specification
| Category | Temperature, which is where the two scales live. |
|---|---|
| Input | A Celsius reading, with Fahrenheit picked as the unit you want back. |
| Output | The Fahrenheit value with the formula that produced it, updated on each keystroke. |
| Reverse | Swap the two unit menus to read a Fahrenheit figure back as Celsius. |
| Processing | All calculations run locally in the current browser tab. |
| Which gallon | Volume uses US gallons, quarts and cups. Imperial measures are not offered, so a UK recipe will not line up. |
| Price | Free |
| Account required | No |
Keep going with the same files
All convert tools: Convert tools on SPOTTOOLS