Convert Kelvin to Celsius for everyday temperature reporting from absolute scales.
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Conversion factor
Kelvin and Celsius use a scale plus offset (common for temperature) — a simple multiply is not enough.
Subtract 273.15: °C = K − 273.15. 298.15 K is 25°C. Absolute zero remains 0 K, which is −273.15°C on the Celsius scale.
Convert Celsius to Kelvin
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