Newton Resfriamento
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
h A ΔT
About this calculator
The Newton Cooling Calculator is an online tool that helps to calculate the cooling rate of a system based on the formula Q̇ = hA·ΔT. This formula is widely used in engineering to calculate the amount of heat transferred between a body and its surroundings.
With this calculator, you can determine the cooling rate in different situations, such as the heating or cooling of liquids, gases or solids. It is useful in various applications, from process engineering to the construction of cooling systems.
Remember that the formula Q̇ = hA·ΔT assumes that heat transfer is carried out by convection. Therefore, it is essential to ensure that this condition is met before using the calculator. Additionally, make sure that the values of h, A and ΔT are correct and consistent with the units used.
Frequently asked questions
What is the formula Q̇ = hA·ΔT?
The formula Q̇ = hA·ΔT is a mathematical equation that relates the cooling rate (Q̇) to the heat transfer coefficient (h), the surface area (A) and the temperature difference (ΔT).
When can I use this calculator?
You can use this calculator in any situation where you need to calculate the cooling rate of a system, such as the heating or cooling of liquids, gases or solids.
How can I ensure that the values of h, A and ΔT are correct?
Make sure that the values are consistent with the units used and that heat transfer is carried out by convection.