Nothing to install, nothing to sign up for
Open the temperature converter and start counting in the same second. No account, no email, no trial.
Temperature Converter
Free · No sign-up · Works in your browser
Type a value in any field to convert instantly.
Common Temperatures
| Description | °C | °F | K |
|---|---|---|---|
| Water freezes | 0 | 32 | 273.15 |
| Room temperature | 20 | 68 | 293.15 |
| Body temperature | 37 | 98.6 | 310.15 |
| Water boils | 100 | 212 | 373.15 |
Temperature Conversion Formulas
Celsius to Fahrenheit: °F = (°C × 9/5) + 32
Fahrenheit to Celsius: °C = (°F - 32) × 5/9
Celsius to Kelvin: K = °C + 273.15
Quick answer
Temperature Converter is a free browser tool from SimpleCounter. Free temperature converter. Convert between Celsius, Fahrenheit and Kelvin instantly. Easy to use with real-time conversion. Enter your values and the result updates as you type — there is nothing to install and no account to create.
- Definition: Temperature Converter
- A temperature converter takes the numbers you enter and returns the result using the standard formula for that calculation, so you do not have to work it out by hand.
Key facts
| Cost | Free, with no account and no usage limit. |
|---|---|
| Where the maths happens | In your browser. The values you type are not sent to a server. |
| Devices | Any modern browser on phone, tablet, laptop or desktop. |
| Accuracy | Standard published formulas, shown with the units you selected. |
| Intended use | Estimates for everyday and educational use, not professional advice. |
How to use the temperature converter
- Type your value into the first field.
- Choose the unit or option that matches your figures, if the tool offers a choice.
- Read the result — it recalculates immediately, with no submit button.
- Change any input to compare a second scenario side by side.
How this page relates to the rest of the site
- Type of
- Free online tool
- Related tools
- Online counter, Online stopwatch
- Explained in
- Guides and how-tos
- Published by
- SimpleCounter
Disclaimer: This tool is provided for educational and informational purposes only. Results are estimates based on standard formulas and the inputs you provide. For financial, medical, legal, or tax decisions, consult a qualified professional. See our full disclaimer.
Frequently Asked Questions
How to convert Celsius to Fahrenheit?
Multiply the Celsius temperature by 9/5 and add 32. Formula: °F = (°C × 9/5) + 32.
How to convert Fahrenheit to Celsius?
Subtract 32 from the Fahrenheit temperature and multiply by 5/9. Formula: °C = (°F - 32) × 5/9.
What is absolute zero?
Absolute zero is 0 Kelvin, which equals -273.15°C or -459.67°F. It's the lowest possible temperature.
What temperature is the same in Celsius and Fahrenheit?
-40 degrees is the same in both Celsius and Fahrenheit: -40°C = -40°F.
Benefits of using the Temperature Converter
What you actually get compared with a mechanical clicker, a notes app, or trying to hold the number in your head.
Your count survives real life
Totals are saved on your device as you go, so a locked screen, a closed tab, or a lost signal does not reset anything.
Works offline once loaded
Install it to your home screen and it keeps working in a warehouse, a pool hall, a field, or a plane — no connection needed.
Private by default
Counts stay in your browser. There is no cloud sync, no profile, and nothing about what you count is sent to us.
Free, with no sign-up
Works offline once loaded
Counts stay on your device
Installable as an app
Runs in your browser — nothing to download
72+ counter types available
Share your setup
We publish only real, attributed feedback here — so this space is intentionally empty until we have your words to put in it. Tell us what you use the temperature converter for and we will add your story, with your name, to this page.
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