# Volumetric Flow Rate

Written by Jerry Ratzlaff on . Posted in Fluid Dynamics

Volumetric flow rate, abbreviated as Q, also called volume flow rate, is the amount of fluid that flows in a given time past a specific point.

## Volumetric flow rate formula

$$\large{ Q = \frac{ V }{ t } }$$
Symbol English Metric
$$\large{ Q }$$ = volumetric flow rate $$\large{\frac{ft^3}{sec}}$$ $$\large{\frac{m^3}{s}}$$
$$\large{ t }$$ = time $$\large{sec}$$ $$\large{s}$$
$$\large{ V }$$ = volume $$\large{ in^3}$$ $$\large{ mm^3}$$

## Volumetric flow rate formula

$$\large{ Q = \frac{ A_c \; l }{ t } }$$
Symbol English Metric
$$\large{ Q }$$ = volumetric flow rate $$\large{\frac{ft^3}{sec}}$$ $$\large{\frac{m^3}{s}}$$
$$\large{ A_c }$$ = area cross-section $$\large{ in^2}$$ $$\large{ mm^2}$$
$$\large{ l }$$ = length of volume $$\large{ ft }$$ $$\large{ m }$$
$$\large{ t }$$ = time $$\large{sec}$$ $$\large{s}$$