Question 1

How do you convert Celsius to Kelvin?

Accepted Answer

K = C + 273.15. Example: 25°C = 298.15 K. Kelvin starts at absolute zero, no negative values.

Question 2

What is absolute zero?

Accepted Answer

0 K = -273.15°C = -459.67°F. Theoretically coldest possible temperature. All thermal motion stops.

Question 3

Why does -40 equal -40 in Fahrenheit and Celsius?

Accepted Answer

The two scales have different zero points and scale factors, but happen to intersect at -40. It's the only temperature where °F = °C.

Question 4

What's the coldest possible temperature?

Accepted Answer

Absolute zero (0 K = -273.15°C = -459.67°F) is the theoretical minimum. It's never been reached, though labs have gotten within billionths of a degree.

°C to K Converter

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