Calculate hydrostatic pressure from fluid density, depth, and gravity. This calculator estimates liquid pressure in pascals, kPa, PSI, bar, atmospheres, and water column units.
Depth:
Enter how far below the liquid surface the pressure is being calculated.
Density:
Select a common fluid or enter a custom density. Higher density creates higher pressure.
Gravity:
Choose standard Earth gravity or enter a custom gravity value for special calculations.
A hydrostatic pressure calculator is useful for water tanks, pools, wells, diving examples, dams, pipes, liquid storage, fluid mechanics, plumbing estimates, and engineering homework.
Hydrostatic pressure is the pressure caused by the weight of a fluid at a given depth.
The basic hydrostatic pressure formula is:
P = ρ × g × h
Multiply fluid density by gravity and depth. The formula is P = ρ × g × h.
Fresh water at 10 feet deep is about 4.33 PSI of gauge pressure.
Yes. The deeper you go below the fluid surface, the greater the hydrostatic pressure becomes.
Gauge pressure measures pressure above atmospheric pressure. Absolute pressure includes atmospheric pressure.