Convert depth to pressure for water, salt water, oil, gasoline, mercury, or a custom fluid. Enter a depth and this calculator estimates pressure in PSI, kPa, pascals, bar, atmospheres, and water column units.
Depth:
Enter the vertical depth below the fluid surface. Pressure depends on vertical depth, not the shape of the container.
Fluid type:
Select a common fluid or enter a custom density. Salt water and mercury create more pressure than fresh water at the same depth.
Pressure result:
The calculator converts depth into pressure using density, gravity, and the hydrostatic pressure formula.
A depth to pressure calculator is useful for pools, tanks, wells, ponds, diving examples, reservoirs, water columns, fluid mechanics, irrigation planning, and hydrostatic pressure estimates.
Depth pressure is the static pressure created by the weight of fluid above the point being measured.
The basic depth to 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 creates about 4.33 PSI of gauge pressure.
Yes. Pressure increases as depth increases because more fluid weight is above the measuring point.
No. Salt water is denser than fresh water, so it creates slightly more pressure at the same depth.