Temperature Converter

What is the Temperature Converter?

Convert any temperature unit to all others at once — °C, °F, K, °R. Temperature can be expressed in Celsius, Fahrenheit, Kelvin and Rankine, and this converter shows all at once.

How to use the Temperature Converter

1. Enter your value, your from unit.
2. Results update automatically as you type; you can also press Calculate.
3. Read the output: celsius (°c), fahrenheit (°f), kelvin (k), rankine (°r).
4. Check the chart to see how the conversion scales.

Formula and method

Worked example

With value = 20, from unit = Celsius (°C), the Temperature Converter returns celsius (°c): 20 °C; fahrenheit (°f): 68 °F; kelvin (k): 293.15 K.

When an all-in-one temperature converter helps

A chemistry student needs room temperature of 21 °C in kelvin for a gas law problem. Converting gives 294.15 K, alongside Fahrenheit and Rankine.

A traveler planning a trip compares a forecast in Celsius with weather at home in Fahrenheit, seeing every scale at once.

Watch out for these mix-ups

• Using multiplication alone for Celsius and Fahrenheit.
• Adding degree symbols to kelvin.
• Confusing temperature differences with temperatures.
• Using negative kelvin values.

Tips for better results

• Add 273.15 to Celsius for kelvin.
• Use offsets carefully.
• Check unit labels.

💡 Practical tip: Kelvin starts at absolute zero, so it never has negative values.

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