Water pressure at depth calculator
Pressure rises linearly with depth and does not depend on the shape of the container at all.
kg/m3
m2
Gauge pressure
98 066.5Pa
- Absolute pressure
- 199 391.5
- Absolute pressure in atmospheres
- 1.967 84
- Force on the given area
- 98 066.5
- Equivalent head
- 10
Show the working
- Depth = 10
- Fluid density = 1000
- Surface pressure = 101 325
- Area for the force = 1
- Gauge pressure = 1000 * g0 * 10 = 98 066.5
- Absolute pressure = 98 066.5 + 101 325 = 199 392
- Absolute pressure in atmospheres = 199 392 / 101325 = 1.967 84
- Force on the given area = 98 066.5 * 1 = 98 066.5
- Equivalent head = 1000 > 0 ? 98 066.5 / (1000 * g0) : 0 = 10
Values are shown to six significant figures here; the arithmetic itself runs on exact fractions and is only rounded where a number is printed.
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The formula
- gauge pressure = rho g h
- absolute = gauge + surface pressure
Every ten metres of fresh water adds about one atmosphere, which is the basic arithmetic of scuba diving.