BrewingCalc vs FermCalc Winemaking Calculator

BrewingCalc is a professional toolkit for homebrewers — clean, fast, and built for serious brewing. Whether you're calculating bitterness, estimating ABV, or converting between metric and US units, BrewingCalc gives you all the tools you need in one place. CALCULATORS INCLUDED • IBU (Glenn Tinseth) — Calculate International Bitterness Units for up to 10 hop additions. Add or remove additions as your recipe requires, then enter hop weight, alpha acid %, boil time, batch volume, and wort gravity. Get per-hop and total IBU. Supports metric and US units. • ABV Table — Determine alcohol by volume using a precision 60-point specific gravity interpolation table. Supports both Plato and SG inputs. • ABV Formula — Temperature-corrected ABV calculation using a polynomial formula. Accounts for the measurement temperature of both original and final gravity readings. • Calories — Estimate total and per-100 ml calories from original gravity, final gravity, and batch volume. Uses the Real Extract (RE) method. • Brix / Refractometer — Convert refractometer readings to gravity and ABV. Two modes: enter original and final Brix, or work backwards from current gravity and corrected Brix. Includes wort correction factor support. • Unit Converters — Four precision converters: – Volume: litres, millilitres, decalitres, US/UK gallons, fl oz, pints – Weight: kilograms, grams, pounds, ounces – Temperature: Celsius, Fahrenheit, Kelvin – Gravity: Plato ↔ Specific Gravity DESIGNED FOR BREWERS All formulas follow established brewing science — Glenn Tinseth's IBU model, the Real Extract calorie method, and standard Brix correction. Your inputs are saved automatically, so you can pick up right where you left off. No ads, no subscriptions, no account required. Works great on both iPhone and iPad.

FermCalc is a collection of advanced winemaking calculators designed to assist both amateur and professional winemakers with calculations related to the following activities: - Unit conversions - Chaptalization & dilution - Acidity adjustment - Sulfite additions - Alcohol & solids content estimation - Blending - Fortification - Miscellaneous additions FermCalc provides full flexibility for specifying both input and output units on all of the calculators. All of the functionality of the popular Java and JavaScript versions of FermCalc are included in the Andrioid version. Below is a complete list of the calculators currently available. ---------------------------------------- Unit Conversions -- Volume -- Mass -- Temperature -- Specific Gravity / Density -- Acidity -- Alcohol Content -- Concentration -- Refractivity ---------------------------------------- Sugar Calculators -- Chaptalization & Dilution -- Amelioration -- High Brix Measurement by Dilution ---------------------------------------- Acidity Calculators -- Acid Titration -- Acidification & Deacidiication -- Amelioration -- NaOH Standardization ---------------------------------------- Sulfite Calculator ---------------------------------------- Alcohol Content Calculators -- Hydrometer SG Drop -- Hydrometer & Refractometer -- Boiling (Spirit Indication) -- Potential Alcohol -- OIML Calculator -- Dry Matter ---------------------------------------- Blending Calculator ---------------------------------------- Fortification Calculators -- Post-Fermentation Fortification -- Fortification Point -- Hackbarth SG Calculator ---------------------------------------- Miscellaneous Calculators -- Dry Measure Converter -- Stock Solution Formulation -- Inverse Stock Solution Makeup -- Miscellaneous Additions -- Yeast Assimilable Nitrogen (YAN) ---------------------------------------- A help page is provided for each calculator, with a high-level description of the calculator and definitions of the input and output fields. Full details regarding the mathematics involved in the calculations are available at www.fermcalc.com.