Temperature Converter
Celsius, Fahrenheit, Kelvin.
Celsius, Fahrenheit, Kelvin.
How to use Temperature Converter
- Pick your From and To units among Celsius, Fahrenheit, Kelvin
- Type a number to convert
- Read the live result plus all three scales at once
About Temperature Converter
The Temperature Converter turns any value between Celsius, Fahrenheit, and Kelvin using the exact standard formulas. Pick a From unit and a To unit, type a number, and the result updates live as you type — there is no button to press. A small stat grid also shows all three equivalents of your input at once, so a single entry like 37 gives you the Celsius, Fahrenheit, and Kelvin reading side by side.
It handles the conversions people look up most: Celsius to Fahrenheit (100 °C = 212 °F), Fahrenheit to Celsius (98.6 °F = 37 °C), and anything involving Kelvin for science or lab work. If you searched for Fahrenheit to centigrade, that is the same conversion as Fahrenheit to Celsius — "centigrade" is just the older name for the Celsius scale. Because you can enter any number and read the result instantly, you can also treat it as a quick calculator or use it to build your own f-to-c or c-to-f reference chart, checking one value at a time.
Everything is free with no sign-up, no ads, and no limits, so you can convert as many temperatures as you like. All the math runs entirely in your browser using JavaScript, which means nothing you type is ever uploaded, tracked, 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.
- 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 and 37 °C equals 98.6 °F. The result and all three equivalents update instantly.
- How do I convert Fahrenheit to Celsius?
- Set From to Fahrenheit and To to Celsius and type the number. For instance, 98.6 °F equals 37 °C and 32 °F equals 0 °C. The Celsius result and the Kelvin equivalent appear at the same time.
- Is Fahrenheit to centigrade the same as Fahrenheit to Celsius?
- Yes. Centigrade is the older name for the Celsius scale, so converting Fahrenheit to centigrade produces exactly the same numbers as Fahrenheit to Celsius. Just choose Fahrenheit and Celsius in the two menus.
- How do I convert to or from Kelvin?
- Choose Kelvin as either the From or To unit and type your number. Kelvin is Celsius plus 273.15, so 0 °C is 273.15 K and 25 °C is 298.15 K. Kelvin is used mainly for science and lab measurements.
- Do you have a Fahrenheit-to-Celsius or Celsius-to-Fahrenheit chart?
- Rather than a fixed printed chart, the converter gives you the exact figure for any value you enter, so you can check each point you need. Common markers are 32 °F = 0 °C, 50 °F = 10 °C, 68 °F = 20 °C, 98.6 °F = 37 °C, and 212 °F = 100 °C. Type any other value to fill in the gaps.
- Can I use this as a temperature calculator?
- Yes. It works as a live temperature calculator — enter any number and it computes the converted value and the other two scales instantly, with no button to press. That makes it handy for cooking, weather, homework, and science problems.
- 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.
- 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.
- 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.