The volume continuity equation, often referred to simply as the continuity equation for incompressible fluids, is a fundamental principle in fluid dynamics. It states that for a steady flow of an incompressible fluid, the volume flow rate entering a control volume must be equal to the volume flow rate leaving it.

This principle is a direct consequence of the conservation of mass for fluids whose density does not change significantly (i.e., incompressible fluids like liquids). It explains why water speeds up when flowing through a narrower pipe or nozzle.

Our Volume Continuity Calculator helps you apply this equation to solve for unknown variables in fluid flow problems, such as flow velocity or cross-sectional area. This tool is invaluable for students, engineers, and scientists working with fluid mechanics.