5 Free BAC Calculator Apps for Android

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Here is a list of 5 best free BAC calculator apps for Android. Using these apps, you’ll be able to calculate alcohol content in your blood based on amount of alcohol consumed. These apps take different factors into account, like your weight, age, gender, alcohol consumed, etc. and calculates the BAC level instantly. You can enter your drinks, and other personal details asked by these apps to calculate BAC and see whether you’re over the limit of sobriety or not. Apart from calculating BAC, if you would also like to log your alcohol consumption then go ahead and check out these amazing alcohol tracker apps for Android.

There are dozens of BAC calculator apps available in the Play Store, but some of them are not so effective and stable. So, to ease up things for you, I have gone through a lot of them and listed 5 of the best BAC calculator apps for Android in this post. Some of these apps like Breathalyzer Cautoh, A LAyman’s BAC Calculator, etc. also allow you to add custom drinks apart from the predefined beverages.

bac calculator apps

Note: The BAC reading given by these apps is a calculated value based on various factors. However, these might not be accurate and might not reflect the correct amount of your BAC. So, it would be a good idea to not rely completely on these apps to determine things like if you can drive, or whether you are sober.

Let us get started with the apps and see how to use them for calculating BAC.

A Layman’s BAC Calculator:

A Layman’s BAC Calculator is definitely one of the best BAC calculator apps for Android which I have come across. It comes with a predefined database of Wine, Beer, and Spirits from which you can select your drinks. To add a drink, you can choose your behavioral status, alcohol density, and the quantity of the drinks by selecting the pre-listed glasses. Apart from that, it also lets you add your own custom drinks for getting more precise BAC results.

So, now let me explain how to use this app and calculate BAC with ease.

Step 1: After you launch the app, it will ask you to choose your gender and enter your weight (in lbs or kgs) on the main screen. It uses these details to calculate BAC, so enter them carefully.

main screen

Step 2: After that, you can click on the “Add Drink” button on the main screen to start adding drinks. First, you have to choose among Beer, Wine, and Spirits and then the behavioral status either as Sober, Drunk, or Accurate (if you want to add custom drinks). Then select the alcohol density either as light, medium or dark and choose any of the pre-listed glasses to define the alcohol quantity consumed.

add a drink

Step 3: After you’ve selected all these details, click the submit button to add the drinks. Now, on the main screen, you’ll be able to see the number of drinks which you’ve had on the current day along with your BAC level, as shown below.

bac level

BAC Calculator (by David Nachmani):

BAC Calculator (by David Nachmani) also calculates your blood alcohol content using different factors like your age, gender, height, weight, alcoholic beverages consumed, and the Widmark equation. Similar to “A Layman’s BAC Calculator” app, this one also lets you add drinks from predefined beverages or add custom drinks if required. After that, the app will process your entered details and calculate BAC percentage. One of the useful features of this app is that it lets you log your alcohol consumption history for viewing them later.

Let us see how can you use this app and calculate the BAC level easily.

Step 1: To get started, launch the app and tap on the hamburger icon and select “User Profile” to enter your height, weight, gender, and age. After that, you need to hit the “+” button at the bottom of the screen to add drinks.

Step 2: Now, you can choose among Beer, Wine, or Liquor and then select the quantity consumed by tapping on the predefined glasses. If you want to add a custom drink, then tap on the “Edit” button at the top to do the same.

add drinks

Step 3: When you’re done selecting a drink, tap on the “Calculator” icon to make this app calculate your blood alcohol content. After processing all your details, it will show the BAC level, the time required until the BAC is zero, the estimated time before you get back to sobriety, along with a graphical representation of BAC level as per time.

bac level


R-U-Buzzed? is another useful BAC calculator app using which you can get an approximate estimation of alcohol content in your blood. It allows you to enter your gender, weight, drinking hours, and the amount of drinks consumed to generate an estimation of your BAC level. You can choose a drink either as Beer (12 oz), Wine (5 oz), or Liquor (1.5 oz) while calculating BAC. Apart from showing you the BAC level, it will also display the symptoms, whether you’re sober or not to drive, and at what time you can get back to sobriety. Another unique feature of this app is that it comes with an additional integration using which you’ll be able to book a ride using Uber, Lyft, etc. to reach home safely while drunk.

Simply follow the steps below to use the R-U-Buzzed app for calculating BAC.

Step 1: First, open up the app and you’ll see 5 different options at the top named, Weight, Hours, Beer, Wine, and Liquor. Each of these options is associated with a scroller using which the input value can be selected.


Step 2: To select your weight (in LBs), all you need to do is drag the scroller below the “Weight” option and stop when you find  your weight. In the same manner, you can also select the drinking hours (in hrs), Beer consumed (per 12 oz), Wine (per 5 oz), and Liquor (per 1.5 oz).

bac result

Step 3: When you’re done selecting the above input, simply choose a gender by tapping on the “Male” or “Female” figure at the center of the screen. As soon as you do that, it will automatically show the BAC level along with the information of whether you’re sober to drive, and at what time you can achieve the sobriety level.

Breathalyzer Cautoh:

You can also use the Breathalyzer Cautoh app to calculate your blood alcohol content and see whether you’re in legal limits or how much time it would take for you to be sober again. To add drinks, you can choose an alcohol beverage among Beer, Red Wine, Rum, Tequilla, etc. You can also add your own drinks by entering a name, quantity, and alcohol content percentage. Similar to “R-U-Buzzed?”, this app also comes with an integration using which you can find a Uber cab to ride back home safely when you’re drunk.

You can follow the steps below to calculate BAC using this app.

Step 1: When you open the app, it will ask you to choose drinks by tapping on the pre-listed alcohol beverages. It offers 15+ pre-listed beverages, however, if you couldn’t find one among them then you can add a custom one with ease.

add alcohol beverages

Step 2: After you’re done adding drinks, tap the “Play” button at the bottom to proceed. It will now ask you to enter your name, email, weight, and gender to make this app calculate your BAC level. By taking your inputs into account, it calculates and shows your BAC level, advises you whether you can drive or not, and display a graphical representation of BAC with respect to time.

bac level result

BAC Calculator (by Nigel Norman):

BAC Calculator (by Nigel Norman) is also amongst one of the best free BAC calculator apps for Android. The best part about this app is its simplicity and it focuses only on the BAC calculation. This app does an approximate metric calculation of BAC level by using your inputs such as body weight, alcohol consumed, gender, etc. It also lets you select your country before calculating BAC, as the legal limit is not same for all countries. For each country, it shows the legal limit of BAC level.

Let us go through the steps required to calculate BAC level using BAC Calculator app.

Step 1: When you open up the app, you’ll see the following input options on the main screen: Country, Input Weight, Indicate Gender, Elapsed Time, and Input Number of Drinks Consumed. At the top of the screen, there will also be an option to toggle metric of input weight as LBs or KGs.

bac calculator

Step 2: Now, to calculate BAC, all you got to do is fill up these input options. For example, you can choose the country as the United States (or any other country), input weights in LBs or KGs, select a gender among male and female, enter the number of drinks you’ve taken (1 standard drink contains 14g of alcohol), and at last feed the drinking time in hours.

bac result

Step 3: As soon as you’re done with entering these details, simply hit the “Calculate %BAC” at the bottom of the screen to generate the result for alcohol content in your blood. It uses the input options entered by you to calculate BAC and gives a precise estimation of alcohol content in your blood. If your BAC goes over the legal limit of the selected country, then the result will turn red.

My Final Verdict:

If you’re looking for apps to calculate your BAC level on your Android phone, then you can go ahead and start using any of these apps explained in this post. Personally, I like the Breathalyzer Cautoh app as it offers more than 15 predefined alcohol beverages along with the option to add custom drinks. But, I think all these apps are pretty good and provides you a more precise estimation of alcohol content in your blood.

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