**Beer Calories Formula**

The Beer calories calculator uses the same formula as the ABV calculator to calculate a beers calories.

**Calories From Alcohol**1881.22 * Final_Gravity * (Original_Gravity – Final_Gravity)/(1.775 – Original_Gravity)**Calories From Carbohydrates**3550 * Final_Gravity * ((0.1808 * Original_Gravity) + (0.8192 * Final_Gravity) – 1.0004)**Total Calories**Calories From Alcohol + Calories From Carbohydrates

**Approximating Beer Calories w/ ABV**

If you don’t know the beers original & final gravity, we can approximate the beers calories simply by multiplying the beers ABV % by a factor of ~2.5 and then multiplying that number by how many ounces the bottle holds.

**Approx. Calories** = (ABV% * 2.5 ) * oz

While the above calculation won’t ever be as exact as our OG/FG formula, it’s simplicity makes it much easier to remember and apply when you’re out enjoying a few cold ones.

Let’s go through an example beer really quick just to demonstrate what kind of difference you can expect in the results between these 2 equations.

**Example Beer:**

-Original Gravity = 1.070

-Final Gravity = 1.018

-ABV % = 7.22

Entering the above values into our 2 formula’s above, we get a value of **228** & **216** calories respectively. In this particular example, the margin for error is about **5%**.

While calculating a beers calories from the ABV% alone won’t always be quite as accurate as our example beer, the formula does tend to be much more practical out in the real world.

Below is a quick reference chart that gives you a beers estimated calories based on it’s ABV%.

Here’s the full Beer Alcohol Content List with over +250 beers to find the correct ABV you need for the above calculations.