Calculate water pressure, PSI, feet of head, elevation pressure loss, outlet pressure, static pressure, pressure drop, and total available pressure. Use this water pressure calculator for plumbing systems, water lines, pumps, tanks, irrigation, and fixture planning.
PSI to head:
The calculator multiplies PSI by 2.31 to estimate feet of water head.
Head to PSI:
The calculator divides feet of head by 2.31 to estimate PSI.
Outlet pressure:
The calculator subtracts pressure drop and elevation loss from starting pressure to estimate outlet pressure.
Static pressure:
The calculator converts elevation height into static water pressure.
A water pressure calculator helps estimate available pressure in a plumbing, pump, irrigation, or water supply system.
It can help compare PSI, feet of head, kPa, bar, elevation pressure loss, outlet pressure, target pressure, and pressure difference.
Your result shows estimated water pressure in PSI, feet of head, kPa, bar, elevation pressure change, pressure drop, outlet pressure, and pressure difference from your target. These are planning estimates only. Actual pressure can vary based on pipe size, pipe length, fittings, valves, filters, regulator settings, water meter restrictions, pump performance, and fixture demand.
Divide feet of head by 2.31. For example, 115.5 feet of head is about 50 PSI.
Water pressure changes by about 0.433 PSI per foot of elevation. Going uphill reduces pressure, while going downhill can increase pressure.
Many homes are commonly in the 40 to 80 PSI range, but acceptable pressure can depend on local code, fixtures, appliances, and regulator settings.
No. This calculator gives a planning estimate. Real pressure can vary based on system layout, fixtures, valves, filters, pipe condition, and water supply conditions.