Brew your best beer EVER. Save 10% on Brewer's Friend Premium today. Use code TAKE10. Sign Up ×

Home Brewed Beer Calculators

Home brewing beer calculators to aid in your brewing. These calculators work well with our brew day sheets, or stand alone.

General Calculators:

  • Computes all of the following: ABV, IBU, SRM, OG, FG. Allows scaling by batch size or efficiency, matches recipe to style, and has many advanced features. Allows saving, sharing, and the ability to 'brew' a recipe.
  • If you took an original gravity reading (or had estimated OG), and also took a final gravity (FG) reading prior to adding priming sugar bottling you can find out your batch’s alcohol by volume ABV.
  • The hotter the wort is, the less accurate your hydrometer reading becomes. This calculator tells the actual specific gravity no matter what temperature the sample is at, and provides a place for you to enter your hydrometer's calibration. Hydrometers are typically calibrated to (59F/15C, or 68F/20C).
  • IBU = international bittering units. This calculator tells you how many IBUs your batch has, given hops additions and wort gravity.
  • SRM = Standard Reference Measure. Tells how light or dark your home brew will be based on the amount and types of ingredients. Uses Morey's Formula.
  • Calculates how much you need to dilute or boil down your wort volume to hit a certain gravity. Helps you hit the correct wort volume and target gravity for your home brewed beer!
  • Pitch your yeast like the pro's do with this easy to use calculator that supports dry yeast, liquid yeast, slurry, and starters. Choose your desired pitch rate in million cells / milliliter of wort / ° Plato. Calculates yeast viability, starter size and how much DME to add to that starter. Supports 3 step-ups, including yeast slants.
  • Converts refractometer readings taken of wort (Brix WRI) to their actual value in Brix / Plato and Specific Gravity. Supports alcohol correction of refractometer readings when calculating FG (which requires OG).
  • Converts Brix to Specific Gravity and Specific Gravity to Brix. Some hydrometers have only one or the other, which is where this calculator comes in. Computes potential alcohol by volume (for use in dry wines). The Plato and Balling scale are very close to the Brix scale and can be used here interchangeably. The higher the number, the more sugar is in solution. Ultimately this translates into a higher alcohol volume in the finished product.
  • Chaptalization calculator finds how much sugar to add to your must to hit the desired Brix. Chaptalization is the process of adding sugar to must early in wine making process to boost the Brix and thus the total alcohol in the finished wine. The purpose of adding sugar is to boost the Brix in a poor growing year and help the final product turn out better.
  • Converts between LME and DME weights while preserving the same gravity. If you have a recipe using LME and want to use DME (or DME and want to use LME), enter the quantity called for in the appropriate calculator and convert.

All Grain Brewers:

  • For infusion mashing, use this calculator to find out your strike water temperature and volume. If you are performing additional rests you can plan them out in advance.
  • If you are an all grain brewer and want to know your expected original gravity (OG), expected final gravity (FG), and expected alcohol by volume (ABV), you can plug in the numbers and get instant results. This calculator is specifically designed to work with our all grain brew day sheet.
  • Water chemistry calculator for beer brewers targeting certain mineral levels. Converts salt additions to teaspoons. Calculates balance of flavor ions and checks for harmful levels.
  • Computes mash pH using state of the art engine written by Kaiser. Supports slaked lime, acid additions, multiple water sources.
  • Reports beer mash extraction efficiency in percentage terms and points per pound per gallon (ppg). Useful for all grain beer brewers to calculate their actual efficiency at extracting sugars from the grain during the mash.
  • Finds the amount of boiling water needed to reach a new rest temperature in your mash tun. For use in the middle of mashing.

Extract Brewers:

  • If you are an extract brewer and want to know your expected original gravity (OG), expected final gravity (FG), and expected alcohol by volume (ABV), you can plug in the numbers and get instant results. This calculator is specifically designed to work with our extract brew day sheet.

Bottling, Priming, and Kegging:

  • Ever wonder if you have enough bottles to hold your 5 gallon batch? Ever wondered if you have 4 22oz, and 6 half liter bottles, how many 12oz bottles do you need to cover the rest of the batch? This calculator does the math for you.
  • Calculates how much priming sugar is needed. Works with table sugar, corn sugar, and DME.
  • Force Carbonation Chart helps you decide what pressure to set your kegs at depending on the temperature that they are at, and what style of beer is in them.
  • Calculates how much unfermented wort (aka Gyle / Speise), or Krausen is needed to hit the desired volumes of CO2 when bottling beer.

Wine Calculators:

  • Wine making calculators, not directly related to brewing beer. However there is some overlap between beer brewing and wine making. These calculators are useful in making grape wines as well as meads and fruit wines.

Want no ads? Go Premium and unlock all our brewing tools!