Cider Calculator

If you are a home maker or just curious about the content of your favorite cider, our cider alcohol by volume (ABV) calculator is here to help. By using this handy tool, you can easily estimate the alcohol content of your cider based on gravity change.

Gravity change refers to the difference in specific gravity (density) of the liquid before and after fermentation. This change is a result of the sugar in the cider being converted into alcohol by during the fermentation process.

To calculate the ABV of your cider, you will need to know the original gravity (OG) and final gravity (FG) of your cider. The OG is the specific gravity of the cider before fermentation, while the FG is the specific gravity after fermentation.

The formula used in our ABV calculator is fairly straightforward: ABV = (OG – FG) * 131.25. Simply subtract the FG from the OG, multiply the difference by 131.25, and you will have an estimated ABV percentage for your cider.

It's important to note that this calculator is intended for home cider makers and should be used as a guide. Commercial cider producers may have their own methods and equipment for accurately measuring alcohol content.

Now, let's go through the steps of using the ABV calculator:

1. Measure the OG: Before fermentation begins, use a hydrometer to measure the specific gravity of your cider. This will give you the OG. Make sure to record this value.

2. Measure the FG: Once fermentation is complete, take another hydrometer reading to determine the specific gravity of your cider after fermentation. This will give you the FG. Again, record this value.

3. Plug the values into the ABV calculator: Subtract the FG from the OG and multiply the difference by 131.25. The result will be the estimated ABV of your cider.

It's worth mentioning that this calculation assumes that all the sugar in your cider has been converted into alcohol. In reality, there may be residual sugars or other factors that can affect the accuracy of the calculation. However, this formula is widely used by home brewers and provides a good estimate of alcohol content.

Once you have determined the ABV of your cider, you may want to carbonate it for a fizzy finish. To do this, you can make a priming sugar solution. For every gallon of cider, add one ounce of priming sugar to a half-cup or cup of . Bring the mixture to a boil, stirring to completely dissolve the sugar, and then let it cool to room temperature.

After filtering your fermented cider, you can add the priming sugar solution to it. This will provide the necessary sugars for secondary fermentation in the bottle, resulting in natural carbonation.

Our cider ABV calculator is a useful tool for home cider makers who want to estimate the alcohol content of their creations. By knowing the OG and FG of your cider and plugging the values into the calculator, you can get a rough idea of the ABV percentage. Remember, this is just an estimate, and other factors may affect the final alcohol content. Cheers to homemade cider!


How Do You Calculate Alcohol Content In Cider?

To calculate the alcohol content in cider, you can use a simple equation that involves the original gravity (OG) and the final gravity (FG) of the cider. Here are the steps to calculate the alcohol content:

1. Measure the original gravity (OG) of the cider before fermentation begins. This can be done using a hydrometer, which measures the density of the liquid. The OG represents the sugar content in the cider before it has started fermenting.

2. Allow the cider to ferment until it reaches its final gravity (FG). This is typically measured after fermentation is complete, and all the sugar has been converted into alcohol.

3. Subtract the final gravity (FG) from the original gravity (OG) to find the gravity difference.

4. Multiply the gravity difference by 131.2. This conversion factor is used to estimate the alcohol by volume (ABV) in cider.

5. The result of this calculation is the estimated alcohol content of the cider, expressed as a percentage.

Here is the equation to summarize the calculation:
%ABV = (OG – FG) x 131.2

It's important to note that this equation provides an estimation of the alcohol content, as there may be other factors that can affect the final ABV. However, this method is commonly used and provides a good approximation of the alcohol content in cider.


The cider alcohol by volume (ABV) calculator is an essential tool for home cider makers. By inputting the original gravity (OG) and final gravity (FG) of their cider, they can easily determine the alcohol content using the standard equation (ABV = (OG – FG) * 131.25).

This calculator provides a convenient way to estimate the ABV of homemade cider, allowing cider makers to have a clear understanding of the strength of their product. It takes into account the gravity change, which is a key indicator of fermentation progress and alcohol production.

Additionally, the calculator can be used in conjunction with other cider-making processes, such as priming sugar solutions for carbonation. By knowing the ABV of the cider, cider makers can adjust the amount of priming sugar needed to achieve the desired level of carbonation.

The cider ABV calculator is a valuable tool for cider enthusiasts, providing them with the necessary information to create their own delicious and properly balanced ciders.

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Thomas Ashford

Thomas Ashford is a highly educated brewer with years of experience in the industry. He has a Bachelor Degree in Chemistry and a Master Degree in Brewing Science. He is also BJCP Certified Beer Judge. Tom has worked hard to become one of the most experienced brewers in the industry. He has experience monitoring brewhouse and cellaring operations, coordinating brewhouse projects, and optimizing brewery operations for maximum efficiency. He is also familiar mixology and an experienced sommelier. Tom is an expert organizer of beer festivals, wine tastings, and brewery tours.