How it works
Gauge pressure increase below a static fluid surface is ρgh. Surface pressure is excluded.
Input definitions
- Fluid density (kg/m³)
- Enter the value in the labeled unit.
- Depth below free surface (m)
- Enter the value in the labeled unit.
- Gravity (m/s²)
- Enter the value in the labeled unit.
A worked example
- Fluid density (kg/m³)
- 1000
- Depth below free surface (m)
- 2
- Gravity (m/s²)
- 9.80665
Assumptions & limits
Ideal educational model in the stated SI units. Real equipment, structural design and safety decisions need appropriate professional analysis; losses are excluded unless entered.
Sources & review
Maintained by AnsRio. Methods and examples use automated checks; this does not imply independent professional certification.
Method updated 2026-10-18. Content checked against the stated method and examples. Our verification approach.
Common questions
Is this absolute pressure?
No. Add the pressure at the fluid surface to get absolute pressure. Density is assumed constant with depth.
How does Hydrostatic gauge pressure work?
Gauge pressure increase below a static fluid surface is ρgh. Surface pressure is excluded.
What should I check before using Hydrostatic gauge pressure?
Ideal educational model in the stated SI units. Real equipment, structural design and safety decisions need appropriate professional analysis; losses are excluded unless entered.