Food, Beverage, Brewing & Petroleum Chemistry Calculators
All food, beverage, brewing & petroleum chemistry calculators in one place.
Alcohol by Volume (ABV) & Proof Calculator
Calculate alcohol by volume from gravity readings, convert ABV to proof, and work out standard drinks, calories, dilution, and blending.
Brix to Specific Gravity / Plato Converter
Convert Brix or Plato readings to specific gravity, convert SG back to Brix/Plato, and correct a post-fermentation refractometer reading for alcohol interference using the Sean Terrill formula, with Baumé, apparent attenuation, and estimated ABV included.
Titratable Acidity Calculator (Wine/Juice)
Calculate titratable acidity (TA) from titration data for wine, juice, cider, and vinegar — in g/L, percent acid, and mEq/L — with tartaric, citric, malic, acetic, and lactic acid presets, a titer/normalization factor, instant cross-acid conversions, and a Brix:TA ripeness ratio tool.
API Gravity & Crude Oil Density Calculator
Convert API gravity to specific gravity and density (kg/m³, g/cm³, lb/ft³, lb/gal), classify crude oil as light, medium, heavy, or extra heavy, and convert barrels to metric tons using common crude oil benchmarks like WTI and Brent.
Polymer Polydispersity Index (PDI) Calculator
Find the polydispersity index (PDI / Đ = Mw/Mn) directly from Mn and Mw, compute Mn, Mw and Mz from a full chain-length distribution table, solve the Mn/Mw/PDI triangle for a missing value, and find the degree of polymerization — with instant narrow-to-broad classification.
Polymer Glass Transition Temperature Estimator
Estimate the glass transition temperature (Tg) of a polymer blend or copolymer with the Fox equation for any number of components, or the Gordon-Taylor equation for two-component blends, find how molecular weight lowers Tg with the Flory-Fox equation, and look up Tg for 15+ common polymers.
Saponification Value & Soap Lye Calculator
Build a cold-process or hot-process soap recipe from 16 built-in oils and butters, get exact NaOH or KOH and water amounts with a superfat allowance and a soap-quality breakdown, or calculate a fat's saponification value from titration data.