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Hobbybrennen Calculators

Distillate Dilution Calculator 1
Calculates from the undiluted alcohol strength and quantity the resulting total quantity and the necessary dilution water to obtain a desired alcohol strength.

Dilution Calculator 2
Calculates from the alcohol strength of an undiluted alcohol the necessary quantity of this alcohol and the necessary dilution water to obtain a desired alcohol strength and a desired total quantity.

Mixing Calculator
Calculates the result after mixing different alcohol strengths.

Alcoholmeter Temperature Correction
Corrects the reading of a density meter calibrated to 20°C / 68°F, such as an alcoholmeter.

Pycnometer Alcohol Strength
Calculates the alcohol strength of the distillate from pycnometer readings.

Sugar Content of Spirits
Calculates the sugar content of spirits from the labeled alcohol strength and a %abv or density measurement.

Refractometer Temperature Correction Alcohol Solutions
Corrects the measured value of a refractometer at alcohol solutions to the value at 20°C / 68°F.

Refractometer at High Alcohol Strength
Allows the use of a refractometer in the azeotrope range.


Distillation Distillation Calculator
Calculates either from the alcohol content in the boiler, the steam temperature or the alcohol content in the distillate the corresponding other two values.

Distillation Simulator 1
Calculates the course of a distillation and displays it in tabular form.

Distillation Simulator 2
Calculates the course of a distillation and displays it graphically.

Potstill and Thumper Simulator
Calculates the course of a potstill distillation with up to two thumpers and displays it graphically.

Distillation Tables Generator
Creates a downloadable distillation tables for stills with a thermometer at the highest point of the vapor.

Boiling Point Diagram Generator
Creates an interactive downloadable boiling point diagram taking into account atmospheric pressure and theoretical plates.

Column Simulator
Calculates the alcohol strengths and temperatures in a column and displays them graphically.

Congeners Simulator 1
Calculates the course of a distillation and graphs the course of many aroma compounds.

Congeners Simulator 2
Calculates the influence of multiple distillation, theoretical bottoms and separation points on aroma compounds and presents the result in tabular form.

Elevation - Atmospheric Pressure
Calculates the local atmospheric pressure from elevation, mean sea-level pressure (MSLP) and the outside air temperature.

Watt → Distillate Quantity
Calculates the distillate flow rate from the heating power.

Distillate Quantity → Watt
Calculates the necessary heating power from the desired distillate flow rate or the real effective heating power from a measured distillate flow rate.

Vapor Speed
Calculates the vapor speed from the heating power and the inner tube diameter.

Condenser Dimensioning
Helps to design and manufacture Liebig and shotgun condensers.

Cooling Water Warming, Reservoir, Potstill
Calculates cooling water warming from cooling water quantity and the distillation data.

Cooling Water Warming, Water Flow, Potstill
Calculates the cooling water arming from the cooling water flow rate and the distillation data.

Cooling Water Warming, Reservoir, Reflux Still
Calculates the relationship between heating power, distillation time, cooling water quantity and its warming. The calculation is also valid for reflux distillations.

Cooling Water Warming, Water Flow, Reflux Still
Calculates the relationship between heating power, cooling water flow and its warming. The calculation is also valid for reflux distillations.

Heating of the Still
Calculates the heating time from the heating power and the boiler contents.


Mash and Wash Alcohol Content of the Ferment determined by density
Calculates the %abv of the mash from a value measured with a density meter before fermentation and a value during or after fermentation.

Temperature Correction Density Meter for Sugar Solutions and Conversion SG, Oechsle, Density, Brix, Plato, g/l
Corrects the reading of a density meter calibrated to 20°C / 68°F for sugar solutions and converts units of measurement.

Pycnometer Sugar Concentration
Calculates the concentration of a sugar water solution from pycnometer readings.

Refractometer Temperature Correction Sugar Solutions
Corrects the measured value of a refractometer at sugar solutions to the value at 20°C / 68°F.

Abv of Boiler Contents
Allows the alcohol strength of the boiler contents before distillation to be calculated after distillation.


Recipes Sugar Wash Calculator 1
Calculates sugar washes from the amount of sugar and the total volume of the wash.

Sugar Wash Calculator 2
Calculates sugar washes from the desired total volume and the desired alcohol strength.

Fruit Mash Calculator
Calculates fruit mashes considering water and sugar additions and unfermentable substances.

Grain Calculator 1
Calculates the expected alcohol content from the mash ingredients.

Grain Calculator 2
Calculates the amount of grain from the desired grain bill, mash quantity and alcohol strength.

Grain Mashing Temperature
Calculates the necessary temperature of the water when mashing in grain.

Rum Calculator
Calculates for rum ferments from the ingredients and the desired total volume of the wash the required amount of water and the maximum achievable %abv.

Liqueur Calculator
Calculates the volume, %abv, sugar content, calories and other values of liqueur recipes.

QuantityConversion
Converts the ingredients of a recipe for another quantity.

pH - Buffer
Calculation of recipes for different pH buffers and calculation of their properties.


Further and more Theoretical Calculators Thermometer Error
Calculates the error of the thermometer from the indicated temperature in ice water and during a water distillation in vapor, uses it to correct measured values and outputs a value that other calculators can use to adjust their calculation to the thermometer.

Ethanol-Water Mixtures
Converts the units of measurement of ethanol water mixtures: molar percent, weight percent, volume percent, density, specific gravity, and refractive index.

Pycnometer Volume Determination
Calculates the volume of a pycnometer using a measurement with water.

Refractometer Adjustment
Allows the adjustment of a refractometer with a measurement of water at temperatures other than 20°C / 68°F.

Sugar ↔ Refractive Index ↔ Alcohol
Calculates the relationship between refractive index, alcohol concentration and sugar concentration in refractometer measurements.

Volume of Containers
Calculates the volume of containers at different filling heights.

Glass Thermometer Stem Correction
Calculates the stem correction for partially immersed glass thermometers which are calibrated for full immersion.

Reflux Coils
Calculation of the geometry of reflux coils.

Complete Conversion of Sugar to Alcohol
A sugar solution is completely converted to alcohol. Numerous values are calculated.

Pressure Dependence of Boiling Points
Calculates the boiling points of water and ethanol and the alcohol strength and boiling point of the azeotrope from the local atmospheric pressure.

Still Pressure Calculation
Calculates still pressure from alcohol strength and boiling temperature and local atmospheric pressure.

Theoretical Plates
Calculates the number of theoretical plates from the temperatures or alcohol strengths in the vapor and boiler.

McCabe-Thiele Method
Calculates the relationship between the reflux amount, the number of plates, and the alcohol strengths in the boiler and distillate using the McCabe-Thiele method.

Partial Condensation
Calculates the vapor above and the reflux below a partial condenser and the rectification resulting from the partial condensation.

Congeners Fractions Simulator
Calculates tables with concentrations of aroma compounds depending on the length of fractions.

Congeners Volatilities Diagram
Generates a diagram with volatilities of many aroma compounds depending on alcohol strength and the number of theoretical plates.

Congeners Volatilities Tables
Calculates tables with volatilities of aroma compounds depending substances on the alcohol strength and the number of theoretical plates.

Calcium Hydroxide - Sulfuric Acid
Calculates the necessary amount of sulfuric acid for neutralization or complete precipitation of calcium hydroxide.


General Information Our calculators were made by members of the hobby distillers online forum hobbybrennen.ch between 2018 and now.
Originally they are in German language. The translations into English were made also by us. We are not native English speakers. If you find something translated incorrectly, don't hesitate to contact me.

For explaining some subjects more in detail, we have made a few information pages:
The contraction of ethanol and water
Our boiling point data and the influence of atmospheric pressure
Congeners and calculation examples
McCabe-Thiele Method
Pycnometers
Refractometers