Science cluster
Fluid & Aerodynamics Calculators
Compute flow rates, pressure drop, viscosity, buoyancy, and drag for pipes, pumps, and aerodynamic systems.
Top calculators
A short starting set for the most common fluid & aerodynamics calculators workflows.
Darcy-Weisbach Head Loss Calculator - Pressurized Pipe Flow
Compute friction head loss and pressure drop in a pipe using the Darcy-Weisbach equation with the Swamee-Jain friction factor.
Hydraulic Ram Pump Performance Calculator (Delivered Flow & Daily Volume)
Estimate delivered flow and daily water volume from a hydraulic ram pump using drive flow, drive head, delivery head, and an efficiency factor.
Compressed Air CFM Calculator | Size a Compressor for Pneumatic Tools
Estimate compressed air CFM requirements for pneumatic tools, apply duty cycle and safety factor, and get compressor sizing guidance, receiver tank suggestions, and basic pressure-drop context.
Pipe Flow Rate Calculator - Determine Fluid Volume per Second
Calculate how many liters or gallons per minute flow through a round pipe. Enter diameter and velocity to see results instantly.
OTEC Cold-Water Pipe Pumping Power Calculator | Head Loss and Pump Power
Estimate head loss and pumping power for an OTEC cold-water intake pipe using Darcy-Weisbach friction losses, seawater properties, pipe geometry, and pump efficiency.
Hydraulic Pump Power Calculator - Estimate Required Horsepower
Compute hydraulic pump power from flow rate, pressure and efficiency. Understand energy transfer in fluid power systems.
Rayleigh Number Calculator | Predict Natural Convection Onset
Compute the Rayleigh number to judge whether natural convection will occur based on temperature difference, fluid properties, gravity, and characteristic length.
Sprayer Calibration Calculator - Accurate Gallons per Acre
Calibrate boom sprayers by calculating gallons per acre from nozzle flow, travel speed, and spacing. Estimate total spray volume for any field size with on-device math.
All calculators in this cluster
Browse 22 calculators matched to this topic, or return to the Science category.
Air Compressor CFM Calculator - Tool & Tank Sizing
Calculate required air compressor CFM and tank size from tool airflow and duty cycle. Estimate compressor capacity for nailers, impact wrenches, sprayers, an...
Compressed Air CFM Calculator | Size a Compressor for Pneumatic Tools
Estimate compressed air CFM requirements for pneumatic tools, apply duty cycle and safety factor, and get compressor sizing guidance, receiver tank suggestions, and basic pressure-drop context.
Darcy-Weisbach Head Loss Calculator - Pressurized Pipe Flow
Compute friction head loss and pressure drop in a pipe using the Darcy-Weisbach equation with the Swamee-Jain friction factor.
Drainage Tile Spacing Calculator - Plan Subsurface Drainage
Compute optimal subsurface drainage tile spacing using soil hydraulic conductivity, drain depth, desired water table height, and drainage coefficient.
Drip Irrigation Emitter Spacing Calculator
Size emitter spacing along a drip line based on plant water needs and irrigation schedule.
Garden Hose Water Use Cost Calculator
Estimate water volume and cost from using a garden hose based on diameter, pressure, and run time.
Groundwater Travel Time Calculator (Darcy’s Law) | Seepage Velocity & Travel Time
Estimate groundwater seepage velocity and advective travel time using Darcy’s Law with hydraulic conductivity, hydraulic gradient, effective porosity, and distance.
Heat Exchanger Sizing Calculator – Estimate Required Area from LMTD
Interactive heat exchanger sizing calculator to estimate required area using mass flow rate, heat capacity, inlet/outlet temperatures, overall heat-transfer...
Hydraulic Press Calculator - Pascal's Principle
Determine output force, pressure, and mechanical advantage of a hydraulic press using piston sizes and an applied input force.
Hydraulic Pump Power Calculator - Estimate Required Horsepower
Compute hydraulic pump power from flow rate, pressure and efficiency. Understand energy transfer in fluid power systems.
Hydraulic Ram Pump Performance Calculator (Delivered Flow & Daily Volume)
Estimate delivered flow and daily water volume from a hydraulic ram pump using drive flow, drive head, delivery head, and an efficiency factor.
Indoor Air Exchange Upgrade Planner (ACH, CFM & Infection Risk)
Plan indoor ventilation and filtration upgrades. Calculate room volume, clean air flow (CFM), air changes per hour (ACH), CFM per person, and estimated infection probability using a Wells–Riley style model.
OTEC Cold-Water Pipe Pumping Power Calculator | Head Loss and Pump Power
Estimate head loss and pumping power for an OTEC cold-water intake pipe using Darcy-Weisbach friction losses, seawater properties, pipe geometry, and pump efficiency.
Pipe Flow Rate Calculator - Determine Fluid Volume per Second
Calculate how many liters or gallons per minute flow through a round pipe. Enter diameter and velocity to see results instantly.
Projectile Motion Calculator with Air Drag and Wind
Simulate a projectile launch with air drag and wind. Adjust speed, angle, mass, drag coefficient, area, wind, and time step to inspect the flight path and energy change.
Rain Chain Flow Capacity and Splash Control Calculator
Estimate roof runoff, rain chain carrying capacity, basin storage, and soil infiltration so you can judge splash risk, overflow needs, and whether one rain chain is enough for the roof area above it.
Rayleigh Number Calculator | Predict Natural Convection Onset
Compute the Rayleigh number to judge whether natural convection will occur based on temperature difference, fluid properties, gravity, and characteristic length.
Shower Water Usage Calculator - Track Water and Energy Costs
Estimate how much water you use in the shower and learn tips to conserve. Enter flow rate, shower time, and water cost.
Sprayer Calibration Calculator - Accurate Gallons per Acre
Calibrate boom sprayers by calculating gallons per acre from nozzle flow, travel speed, and spacing. Estimate total spray volume for any field size with on-device math.
Storm Sewer Pipe Sizing Calculator | Manning Equation Diameter and Velocity
Size a full-flow circular storm sewer with the Manning equation. Enter design flow, pipe slope, and roughness to estimate required diameter and velocity for preliminary drainage design.
Surface Tension and Pressure Difference Calculator
Solve Young-Laplace relation for pressure difference, surface tension, or bubble radius.
Wing Aspect Ratio Calculator - Aerodynamic Design Insight
Compute the aspect ratio of a wing from span and area to explore stability and efficiency in aerodynamics.