Newton's Law of Cooling Calculator

Estimate object temperature as it cools or warms toward ambient.

Ambient temperature T_env (°C)

Initial temperature T0 (°C)

Cooling constant k (1/s)

Time t (s)

How to Use This Calculator

Enter ambient temperature, initial temperature, a cooling constant, and elapsed time. The calculator predicts object temperature.

T(t) = T_env + (T₀ − T_env) e^−kt

This empirical law models convective heat transfer leading to exponential temperature approach to ambient conditions.

Experimentally fit k from temperature versus time data, or use typical values for similar systems.

Yes. Time in seconds makes k units 1/s; temperature units must be consistent.