R Statistics Calculator Calculate Mean Variance in R Instantly compute mean, variance, standard deviation, sample size, sum, minimum, and maximum from a numeric list, then generate ready-to-use R code and a visual chart for data exploration. Supports comma, space, or…
Calculate Pressure Loss Through Pipe Use Darcy-Weisbach with Reynolds based friction factor for accurate hydraulic design, pump sizing, and energy estimates. Fluid Preset CustomWater at 20 CWater at 40 CSeawater at 20 C30% Ethylene Glycol at 20 C Density kg/m3…
Calculate Pressure Loss in Vertical Pipe Ignoring Friction Use the hydrostatic relation to estimate pressure drop or gain caused only by elevation change. This model ignores friction, fittings, and minor losses. Fluid Type Fresh water (20°C) – 998 kg/m³Seawater –…
Calculate Pressure Loss in Tubing Use this Darcy-Weisbach based calculator to estimate pressure drop through tubing from flow rate, diameter, roughness, fluid properties, and fittings. It is designed for fast engineering checks across water, glycol, and oil systems. Fluid Preset…
Portfolio Optimization Tool Calculate Mean Variance Efficient Portfolio Input expected returns, volatility assumptions, and correlations for three assets to estimate an efficient portfolio allocation, portfolio expected return, and portfolio risk. This interactive calculator visualizes the trade-off between return and variance…
Drip Irrigation Pressure Loss Calculator Use Hazen-Williams to calculate pressure loss in drip irragation laterals and submains. Flow Rate Flow Unit L/sm3/hgpm (US) Pipe Length Length Unit mft Equivalent Fittings Length Fittings Length Unit mft Inside Diameter Diameter Unit mmin…
Heat Exchanger Pressure Loss Calculator Estimate tube-side pressure drop using Darcy-Weisbach with Reynolds-based friction factor and optional minor losses. Fluid Preset Water (20 C)30% Ethylene Glycol-Water (20 C)Light Mineral Oil (40 C)Custom Fluid Volumetric Flow Rate (m3/h) Density, rho (kg/m3)…
Heat Exchanger Pressure Loss Calculator Engineer-ready tool to calculate tube-side pressure drop using Darcy-Weisbach and minor-loss coefficients. Fluid Preset CustomWater at 20°CWater at 60°C30% Ethylene Glycol at 20°C Flow Input Unit m³/hkg/h Flow Rate Density ρ (kg/m³) Dynamic Viscosity μ…
Portfolio Optimization Calculator Calculate Mean Variance Efficient Portfolio in R Build a fast, visual approximation of a three-asset Markowitz optimization workflow, compute the global minimum variance portfolio, estimate the tangency portfolio, and generate R code you can reuse in your…
Calculate Pressure Loss from Grating Estimate pressure drop, head loss, and pumping power across industrial grating or screen sections. Flow Rate (m3/s) Fluid Type Air (20 C)Water (20 C)Seawater (20 C)Custom Fluid Density (kg/m3) Dynamic Viscosity (Pa·s) Channel Width (m)…