The Batch Cocktail Calculator

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I made this for you guys because I love you – the Batch Cocktail Calculator. Designed for both professional bartenders and folks who make drinks at home, this calculator takes your single-serving cocktail recipe and turns it into a batch of any size. This project kicked my ass a more than the Universal Syrup Calculator did, but in the end it works great and I hope it will be just as helpful to you as syrupmath.com is. 

Here are the parameters I set for myself on this project:

1. It had to be a webapp and not a spreadsheet, since many people don’t feel as comfortable using spreadsheets as those of us who work with them every day do. 

2. It needed to be a simple interface, and one that would work gracefully on a phone (most of us don’t love lugging our laptops into the kitchen, but we always have our phones on us)

3. It needed to be able to do Number of Servings *and* Total Volume, because sometimes you need the math to make 250 Mai Tais, but other times you need to make a 750 ml bottle of Dirty Martinis for the freezer door.

4. It had to be able to calculate dilution, of course.

5. It needed to spit out the results in a printer-friendly format, so that you can just grab that sheet of paper and run with it, because big type on physical paper is great to have when you’re batching.

6. It needed to be at a standalone website with a simple and memorable URL, so you wouldn’t need to remember how to spell my long German name in order to find it when you’re in a hurry. 

Eventually, I came up with a system that i feel satisfies all of these requirements. I’m pretty happy with it and I hope you will be, too. If you have any suggestions for how I can make this piece of software serve you better, please let me know in the comments below!

Check it out at batchcalc.com!

9 Replies to “The Batch Cocktail Calculator”

  • This is a such a clever tool to keep our batched cocktails consistent in our restaurant. We will put it to good use. Thank you so much!

  • Jessica Maldonado says:

    Love it, thank you!

  • Evan S says:

    Jeffrey, thanks so much for another great app.

    One minor suggestion would be to consider including a note that for batching bitters (if included in the recipe) that the user may want to cut the amount used in the batch (half or quarter, etc. depending on batch size) given they don’t necessarily scale linearly without taking over. Or maybe a note to exclude the bitters and add to each individual drink at the time of service? Anyway, just a thought.

  • Hey everybody! A couple of people have asked me why I didn’t include the option to do batch calculations by weight (or, more accurately, mass) and wanted to share my reasoning here. Doing batches by mass is just better – it’s easier and more accurate. It’s actually how all of our prep recipes are done at the bar, and it’s been that way for years.

    Here are the reasons why I didn’t implement mass into the BatchCalc.com:

    1. In order to calculate liquids by mass you need to know their densities, because not all liquid have the same density. For instance, the density of 100-proof liquor is around 0.935 g/ml, but the density of 80-proof liquor is around 0.953 g/ml. That makes for a big difference when scaling up to really large batches. So you can’t just say “weight out 2.5 kilograms of bourbon” unless you know the density of that particular whiskey.

    I have a good-sized list of densities on me that I’ve been adding to over the years, but it’s in no way comprehensive, I’m afraid.

    2. As I mentioned in the post, it needs to be phone-friendly. That input group for each ingredient is already crowded on mobile and adding another field for mass would make it unusable in the mobile version.

    3. Half of the audience for this calculator is for home users who just want to make a pitcher of margaritas for their barbecue, so I had to choose the least-confusing path for them. I think about measurements in volume and mass every day, but most people don’t . Adding mass in would just result in a lot of confusion from folks who are already intimidated by this stuff and I’d like this tool to be adopted by as many people as possible, rather than folding in a thousand features.

    4. A big part of this calculation is for professionals who want to scale up their recipes to a specific sized container – a 10L barrel for aging, or a 5 gallon Cornelius keg for a draft system, say – and if you can’t calculate for that if you have a mixture of liquid and solid (dry) ingredients.

    Anyway, I hope that clears up some of the confusion. Like I said, we do all of our long-standing recipes by mass at the bar, but any time we need to do a quick one-off for events we use this calculator and I can tell you that it works perfectly for the vast majority of our needs.

  • william b says:

    Totally rad. Thank you sir.
    Cheers from France.

  • Blair D says:

    This is genius, good Sir. Thank you for always sharing your knowledge with us. BTW I run a small bar program in upstate new York and we have already used this for our batch cocktails and it works perfectly. Love the print featire!

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