Glaister Equation Calculator

Calculate Heart Rate (HR) using Glaister Equation

Formula

The formula to calculate the heart rate (HR) using the Glaister Equation is:

\[ HR = 98.4 + 0.41 \times (T - 36.9) \]

Where:

What is the Glaister Equation?

The Glaister Equation is used to estimate the heart rate based on body temperature. It is particularly useful in forensic science for estimating the time of death.

Example

For example, if the body temperature (T) is 37.5°C, the heart rate (HR) can be calculated as follows:

\[ HR = 98.4 + 0.41 \times (37.5 - 36.9) = 98.4 + 0.41 \times 0.6 \approx 98.64 \text{ beats per minute} \]

So, the estimated heart rate for a body temperature of 37.5°C is approximately 98.64 beats per minute.