Pressure Drop in Pipe System Calculator Estimate friction loss, minor loss, and total pressure drop using Darcy-Weisbach with Swamee-Jain friction factor. Fluid Preset CustomWater at 20°CWater at 60°CDiesel at 20°C Flow Rate m³/sL/sUS gpm Pipe Inner Diameter mmmin Pipe Length…
Pressure Drop in Pipe Fittings Calculator Estimate major and minor pressure losses using Darcy-Weisbach plus fitting loss coefficients. Flow Rate (m3/h) Pipe Inner Diameter (mm) Straight Pipe Length (m) Pipe Roughness (mm) Fluid Density (kg/m3) Dynamic Viscosity (mPa·s) Display Units…
Pressure Drop in Parallel Pipes Calculator Darcy-Weisbach based solver for branch flow split, pressure drop, velocity, Reynolds number, and hydraulic power. System Inputs Total Flow Rate Flow Unit m³/sL/sm³/h Density ρ (kg/m³) Dynamic Viscosity μ (Pa·s) Absolute Roughness ε (mm)…
Calculate Standard Deviation from Confidence Interval and Mean Use this premium calculator to estimate standard deviation when you know the sample mean, the lower and upper confidence interval bounds, the confidence level, and the sample size. The tool also visualizes…
HVAC Duct Pressure Drop Calculator Estimate friction losses in round or rectangular ducts using airflow, dimensions, length, material roughness, fittings, and air conditions. Airflow (CFM) Duct Shape RoundRectangular Round Diameter (in) Rectangular Width (in) Rectangular Height (in) Straight Duct Length…
Duct Pressure Drop Calculator Estimate friction and fitting losses in straight duct runs using engineering-based airflow formulas. Duct Shape CircularRectangular Airflow Rate (m³/s) Duct Length (m) Diameter for Circular Duct (m) Width for Rectangular Duct (m) Height for Rectangular Duct…
Venturi Pressure Drop Calculator Estimate differential pressure across a venturi using flow rate, diameters, density, and discharge coefficient. Inlet Diameter (D1) Throat Diameter (D2) Diameter Unit mmmin Volumetric Flow Rate (Q) Flow Unit m3/sm3/hL/sUS gpm Fluid Density Density Unit kg/m3lb/ft3…
Statistical Calculator Calculate Standard Deviation from 75th Percentile and Mean Use this interactive calculator to estimate standard deviation when you know the mean and the 75th percentile. The default method assumes a normal distribution, where the 75th percentile lies about…
Tube Pressure Drop Calculator Estimate pressure loss using Darcy-Weisbach with Reynolds-based friction factor and optional minor losses. Fluid Preset CustomWater (20°C)Water (60°C)Air (20°C, 1 atm)Light Oil (approx.) Flow Rate L/sm³/hm³/s Inner Diameter mmmin Tube Length mft Density (ρ) kg/m³ Dynamic…
Straight Pipe Pressure Drop Calculator Estimate pressure loss using the Darcy-Weisbach equation with automatic flow conversion, Reynolds number, flow regime detection, and friction factor calculation. Fluid Preset CustomWater at 20°CWater at 60°CAir at 20°C (1 atm)40% Ethylene Glycol (approx) Flow…