18 FOCUSED TOOLS
Fluids & flow calculators
Calculate pressure, density, buoyancy and flow quantities.
Choose the right calculation
Use the fluid properties at the relevant conditions. Gauge pressure is measured relative to a reference and differs from absolute pressure. Average flow velocity and characteristic length must match the geometry being modelled.
Find a tool for your question
Pressure Calculator
Find uniform pressure from perpendicular force and contact area.
Density Calculator
Calculate average material density from mass and volume.
Hydrostatic Pressure Calculator
Find gauge pressure caused by a liquid column.
Buoyant Force Calculator
Find buoyancy from displaced fluid volume and density.
Volumetric Flow Rate Calculator
Calculate volumetric flow from cross-sectional area and average velocity.
Mass Flow Rate Calculator
Calculate mass flow from fluid density and volumetric flow.
Reynolds Number Calculator
Calculate the dimensionless Reynolds number for a chosen characteristic length.
Hydraulic Force Calculator
Find ideal actuator force from differential pressure and effective piston area.
Hydraulic Press Output Calculator
Estimate force multiplication in an ideal hydraulic press.
Pipe Flow Velocity Calculator
Convert pipe volume flow into average velocity.
Continuity Equation Calculator
Find flow speed after a cross-sectional area change under continuity.
Dynamic Pressure Calculator
Calculate dynamic pressure from fluid density and speed.
Bernoulli Pressure Difference Calculator
Estimate static-pressure change due to a speed change in ideal horizontal flow.
Darcy Weisbach Head Loss Calculator
Estimate straight-pipe friction head loss from an entered Darcy factor.
Minor Loss Head Calculator
Estimate fitting or local head loss from a supplied loss coefficient.
Hydraulic Pump Power Calculator
Estimate input power for a fluid flow and head scenario.
Torricelli Efflux Speed Calculator
Find ideal liquid outlet speed under a chosen hydrostatic head.
Capillary Rise Calculator
Estimate capillary rise or depression in a small circular tube.
Should hydrostatic pressure be added to atmospheric pressure?
Add the surface absolute pressure when an absolute result is needed. The basic liquid-column calculation alone gives the pressure increase with depth.
Useful next steps in other categories
Pipe Internal Volume Calculator
Find internal pipe capacity from inner diameter and length.
Molarity Calculator
Calculate solution molarity from solute amount and final solution volume.
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