Science
Hydrostatic Pressure Calculator
Use the hydrostatic pressure calculator for fluid-pressure homework where pressure rises with depth.
Choose the missing quantity; the calculator hides that field and solves it from the others.
Solved value
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- Hydrostatic pressure
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- Fluid density
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- Gravity
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- Depth
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Student quick launch
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Study path
Use this calculator with
Follow these when you want the formula behind the answer, a short lesson, or nearby tools in the same topic.
What the hydrostatic pressure calculator solves
Use the hydrostatic pressure calculator for fluid-pressure homework where pressure rises with depth.
Formula
How to use it
- Choose the quantity you want to solve for.
- Enter the known values with consistent units.
- Check the rearranged formula, substitution, and warnings before using the result.
How to read the answer
In a fluid at rest, gauge pressure from depth increases linearly with density, gravity, and depth.
Common mistakes and edge cases
- This formula gives gauge pressure from depth; add atmospheric pressure when absolute pressure is required.
- Depth is vertical depth below the surface, not distance along a slope.
- Use consistent SI units before converting the final pressure.
Worked examples
Solve the main formula
Solved value
Hydrostatic pressure = 98,100 Pa
Reverse-solve one factor
Solved value
Fluid density = 2,000 kg/m^3
Frequently asked questions
Can the hydrostatic pressure calculator solve for a missing variable?+
Yes. Use the solve-for control to hide the missing value, then enter the other known values with compatible units.
Why do the units matter?+
Formula calculators assume the entered values are already in matching units. Convert first when your measurements use mixed systems.
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Last updated: May 15, 2026