💧 Fluids

🌊Bernoulli's Equation Calculator Calculate pressure at a second point in a fluid system using Bernoulli's Equation, free online. 🛟Buoyancy Force Calculator Calculate the buoyant force on an object from fluid density and displaced volume, free online. 💨Dynamic & Stagnation Pressure Calculator Calculate the dynamic pressure ½ρv² of a moving fluid and the stagnation pressure, free online. 🔩Fitting Losses (K-Factor) Calculator Calculate the pressure and head loss through valves, bends and fittings from their K-factors and the flow velocity, free online. 🚿Flow Rate Calculator Calculate volumetric flow rate from cross-sectional area and flow velocity, free online. 🔢Froude, Mach & Weber Numbers Calculator Calculate the Froude, Mach and Weber numbers of a flow from velocity, length, density and surface tension, free online. 🚰Hazen-Williams Pipe Head Loss Calculator Calculate friction head loss and pressure drop in a water pipe with the Hazen-Williams equation, free online. 📉Hydrostatic Pressure Calculator Calculate fluid pressure at a given depth, free online. ⚙️NPSH Available (Pump) Calculator Calculate the net positive suction head available at a pump and check the margin against the required NPSH to avoid cavitation, free online. 🏞️Open Channel Flow (Manning) Calculator Calculate flow rate, velocity and Froude number in a rectangular or trapezoidal open channel with Manning's equation, free online. 🕳️Orifice Flow Calculator Calculate the flow rate through an orifice under a given head, free online. 🚰Pipe Pressure Drop Calculator Calculate pressure drop and head loss in a pipe using Darcy-Weisbach, free online. 📏Pipe Sizing by Velocity Calculator Pick a pipe diameter for a flow rate and target velocity and check the actual velocity in standard DN sizes, free online. 🪠Pipe Volume Calculator Calculate the volume of liquid a pipe holds, free online. ✈️Pitot Tube Speed Calculator Calculate flow or airspeed from a pitot tube pressure difference, free online. ⛲Pump Power Calculator Calculate the hydraulic and shaft power a pump needs, free online. 🛢️Pump Total Dynamic Head Calculator Find a pump's total dynamic head from suction and discharge gauge readings, elevation and pipe velocities, free online. 🌀Reynolds Number Calculator Calculate the Reynolds number and determine whether flow is laminar or turbulent, free online. 🛢️Tank Drain Time Calculator Estimate how long a tank takes to drain through an orifice, free online. 🧪Venturi Meter Flow Calculator Find the flow rate through a pipe from the pressure drop across a Venturi meter, free online. 🔨Water Hammer Pressure Surge Calculator Estimate the pressure surge from suddenly stopping flow in a pipe with the Joukowsky equation, free online. 🏞️Weir Flow Calculator Estimate the flow over a rectangular sharp-crested weir, free online.