Frequently Asked Questions
What is the hydrostatic pressure formula?
P = ρgh, where ρ is fluid density, g is gravitational acceleration (9.81 m/s²), and h is depth.
Does container shape matter?
No - hydrostatic pressure depends only on depth and fluid density, not on the shape or volume of the container.
Gauge vs absolute pressure?
Gauge = P from fluid only. Absolute = gauge + atmospheric (101,325 Pa). Most pressure gauges read gauge.
How do I calculate pressure at ocean depth?
Use the density of seawater, about 1025 kg/m³, which is denser than fresh water because of dissolved salt. At 100 m down, P = 1025 × 9.81 × 100 ≈ 1,005,500 Pa ≈ 1,006 kPa - roughly 10 atm of gauge pressure, or about 146 psi. Add 1 atm (101,325 Pa) for the absolute pressure a diver actually experiences. Because seawater is about 2.5 percent denser than fresh water, ocean pressure rises slightly faster than 1 atm per 10 m.
Provided by AllCalculators.io
Free online calculators for everyday. No registration required.
Estimates for informational purposes only.
Important Disclaimer: Estimates for informational purposes only.
This calculator provides estimates for informational purposes only. Results are based on assumptions and may not reflect actual outcomes. Consult qualified professionals in relevant fields before making important decisions based on these results.