Formula and example
How it is calculated
Gauge pressure = ρgh; absolute pressure = ambient pressure + ρgh
Worked example
At a depth of 1 m in water with a density of 1,000 kg/m³ and g = 9.81 m/s², the gauge pressure is 9.81 kPa.
Things to check
- Gauge pressure and absolute pressure use different reference points.
- Density is assumed to remain constant throughout the depth.