Basic Pressure & Unit Conversions
Tools for general pressure calculations and common pressure unit conversions.
About these pressure calculators
These pressure calculators are designed for quick estimating, unit conversion, water system planning, fluid pressure calculations, pipe pressure drop estimates, air and gas pressure calculations, hydraulic pressure checks, and practical engineering or home improvement pressure questions. They can help with common pressure calculations such as PSI, kPa, bar, hydrostatic pressure, pump head, pipe pressure loss, atmospheric pressure, gauge pressure, absolute pressure, and differential pressure.
Common uses
Use these tools to convert pressure units, estimate water pressure from height, calculate pressure at depth, review plumbing pressure loss, compare pump head and PSI, estimate hydraulic cylinder pressure, calculate air pressure changes, and understand the difference between gauge pressure, absolute pressure, and differential pressure.
Important pressure note
Pressure calculations can vary based on fluid type, temperature, elevation, pipe material, pipe length, fittings, flow rate, equipment condition, gauge accuracy, and real-world installation details. Use these calculators as planning estimates and verify important plumbing, hydraulic, mechanical, safety, or engineering decisions with proper measurements, code requirements, manufacturer specifications, or professional guidance.