Temperature Converter
Celsius, Fahrenheit, Kelvin.
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About Temperature Converter
The Temperature Converter turns any value between Celsius, Fahrenheit, and Kelvin using exact conversion formulas. Pick a From and To unit, type a number, and the result updates live. A small stat grid also shows all three equivalents of your input at once, so you can read every scale in a single glance.
It's completely free with no sign-up, no ads, and no limits. Everything runs entirely in your browser, so nothing you type is ever uploaded or stored on a server.
Frequently asked questions
- Is the temperature converter free to use?
- Yes. It is 100% free with no account, no sign-up, and no usage limits. Convert as many temperatures as you like.
- Is my data uploaded or stored anywhere?
- No. All conversions happen locally in your browser using JavaScript. Nothing you type is sent to a server, tracked, or saved.
- What temperature units does it support?
- It converts between Celsius (°C), Fahrenheit (°F), and Kelvin (K), and it shows all three equivalents of your input at the same time.
- What formulas does it use to convert?
- It uses the exact standard formulas: °F = °C × 9/5 + 32, K = °C + 273.15, and their inverses. Values are converted through Celsius as a common base for accuracy.
- How do I convert Celsius to Fahrenheit?
- Set From to Celsius and To to Fahrenheit, then type your value. For example, 100 °C equals 212 °F. The result and all equivalents update instantly.
- What happens if I enter an invalid value?
- The tool handles empty or non-numeric input gracefully. It shows a short prompt to enter a valid number instead of displaying NaN or crashing.