Calculate Fraction of Organic Carbon Use direct mass, measured %OC, or estimated %OC from organic matter to compute the organic carbon fraction (foc) with charted output. Calculation Method Direct mass ratio (mOC / mTotal)Measured organic carbon percentage (%OC)Estimate from organic…
Calculate Fraction of Occurances Enter event count and total trials to get the fraction, simplified fraction, decimal probability, and percentage. Number of Occurances (event count) Total Observations / Trials Decimal Places 2 decimal places3 decimal places4 decimal places5 decimal places…
Calculate Fraction of Molecular Species Protonated by pH Use the Henderson-Hasselbalch relationship to estimate protonated and deprotonated fractions for a monoprotic ionizable site. Solution pH pKa of Protonated Species Chemical Context Weak base site (BH+ ⇌ B + H+)Weak acid…
Calculate Fraction of Light Reflected Use Fresnel equations to estimate reflectance at an interface between two media for s-polarized, p-polarized, or unpolarized light. Incident Medium Preset CustomAir (n = 1.0003)Water (n = 1.333)Typical Glass (n = 1.50)Diamond (n = 2.42)…
Fraction of Light Absorbed Calculator Compute how much incoming light is absorbed using measured intensities or absorbance (Beer-Lambert relation). Calculation method From incident, transmitted, and reflected lightFrom absorbance (A) Intensity units (label only) W/m²mW/cm²Relative unitsPhotons/s Incident intensity (I₀) Transmitted intensity…
Calculate Fraction of KE Lost Use this kinetic energy loss calculator to find the fraction and percentage of energy dissipated between initial and final motion states. Mass (kg) Velocity Unit m/skm/hmph Initial Velocity Final Velocity Decimal Places 234 Display Mode…
Calculate Fraction of Intra-Industry Trade Use the Grubel-Lloyd method to estimate how much trade in a market is two-way within the same industry. Enter exports and imports for one industry and get the fraction, percentage, and trade balance profile. Industry…
Calculate Fraction of Expired CO2 (FECO2) Use pressure-based physiology equations or ventilation-based metabolic data to estimate the fraction of carbon dioxide in mixed expired gas. Calculation method Pressure method: FECO2 = PECO2 / (PB – PH2O)Ventilation method: FECO2 = VCO2…
Fractional Excretion of Sodium (FENa) Calculator Use serum and urine sodium plus creatinine values to calculate FENa and support AKI pattern assessment. Serum Sodium Serum Sodium Unit mmol/LmEq/L Urine Sodium Urine Sodium Unit mmol/LmEq/L Serum Creatinine Serum Creatinine Unit mg/dLumol/L…
Calculator: Fraction of Eutectic Alpha (α) Use lever-rule based phase-diagram inputs to compute eutectic microconstituent, eutectic α, and related phase fractions for binary eutectic alloys. Alloy system preset Custom valuesPb-Sn (lead-tin solder)Al-Si (cast aluminum) Composition unit wt%at% Overall alloy composition,…