**About TPR Calculator (Formula)**

The TPR calculator is a tool used to calculate the total peripheral resistance (TPR) of the vascular system. TPR is a measure of the resistance that the circulatory system presents to blood flow in the peripheral vasculature, which includes all blood vessels outside of the heart and lungs.

**The formula for TPR is **

**TPR = P/Q**

Where P is the pressure change across the peripheral vasculature, and Q is the flow rate of blood through the vasculature. P and Q are usually measured in mmHg and mL/min, respectively. The resulting value for TPR is expressed in units of mmHg/mL/min.

To use the TPR calculator, the user inputs the values for pressure change and flow rate into the calculator. The calculator then uses the TPR formula to calculate the TPR and displays the result. The TPR value can be used to evaluate the overall resistance of the peripheral vasculature, which can be important in diagnosing and managing certain cardiovascular conditions.

It’s important to note that TPR is just one measure of the circulatory system’s resistance to blood flow, and that there are other factors that can affect the resistance of the vasculature. However, the TPR calculator is a useful tool for quickly and easily calculating TPR and gaining insight into the overall resistance of the peripheral vasculature.