PC Cooling Pressure Calculator Estimate whether your build is running positive, neutral, or negative case pressure by balancing effective intake and exhaust airflow after restrictions. Number of Intake Fans Average Intake Fan Airflow (CFM each) Intake Restriction (%) Number of…
Patrial Pressures Calculator Use this advanced tool to calculate gas patrial pressures (partial pressures) using Dalton’s Law, inspired oxygen pressure, or the alveolar oxygen equation. Calculation model Dalton mixture (multi-gas)Inspired oxygen pressure (PiO2)Alveolar oxygen estimate (PAO2) Output unit mmHgkPaatm Total…
Precision Statistics Tool Calculate SD of a Mean Use this interactive calculator to compute the standard deviation of the mean, more commonly called the standard error of the mean. Enter a sample standard deviation and sample size, or provide raw…
Passive Earth Pressure Calculator Estimate passive lateral earth pressure using Rankine theory or a user-defined passive coefficient. The calculator includes soil unit weight, friction angle, cohesion, and surcharge effects, then plots pressure versus depth. Calculation method Rankine (Kp from friction…
Particle Concentration from Osmotic Pressure Calculator Use the van’t Hoff relation to estimate osmolarity, solute molarity, and particle number density from osmotic pressure measurements. Osmotic Pressure Enter a positive pressure value. Pressure Unit atmkPammHgbar Temperature Absolute temperature is required by…
Ultra Premium Calculator: Calculating Partial Pressures in Electrochemcial Reaction Systems Estimate gas generation or consumption from current and time, then calculate final partial pressure using Faraday’s law and the ideal gas equation. Reaction model Water electrolysis (gas production)Hydrogen fuel cell…
Statistical Calculator Calculate SD, Mean, 25th Percentile, and 75th Percentile Enter a list of numbers to instantly compute the mean, sample standard deviation, first quartile (25th percentile), median, third quartile (75th percentile), range, and an interactive chart. Built for analysts,…
Partial Pressure Equilibrium Calculator (Using Kp) Solve equilibrium partial pressures for a gas-phase reaction of the form aA + bB ⇌ cC + dD using an ICE-style extent method and numerical root solving. Kp = (PCc · PDd) / (PAa…
Partial Pressure at Equilibrium Calculator Model a gas-phase reaction A + B ⇌ C + D with custom stoichiometry and equilibrium constant Kp. Equilibrium Constant, Kp Temperature (K) Pressure Unit for Input/Output atmbartorr Quick Preset CustomH2 + I2 ⇌ 2HI…
Partial Pressure Calculator (No Volume or Temperature Inputs) Use Dalton’s Law with either mole fraction or moles and total pressure. Calculation Method Known mole fraction (%)Known moles (gas and total) Gas Name Pressure Unit kPaatmmmHgpsi Total Pressure Enter total mixture…