温度の単位変換

Where this converter helps

• Reading weather or thermostat values from a different region.
• Converting cooking, lab, or equipment temperatures without memorising formulas.
• Checking Kelvin values for science and engineering notes where absolute temperature matters.

Using the interface

Enter a temperature in Celsius, Fahrenheit, or Kelvin. Unlike simple scale factors, the converter applies each formula with the correct offset, so negative Celsius and Fahrenheit values work as expected.

Practical notes

• Kelvin cannot go below absolute zero, so negative Kelvin values are not physically meaningful even if typed.
• Use Celsius for most international weather and scientific work, Fahrenheit for many US consumer references.
• Round only after conversion when the number is going into a recipe, report, or control setting.

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