Proof Calculator

What is the ideal proof for whisky? It’s however you like it.

If you’re looking for advice about adding water to whisky, we can help you out. And if you want to determine the “perfect proof” for your taste, use this calculator.

Once you know your perfect proof, this calculator will tell you exactly how much water to add to any amount of whisky to reach it.

And that’s it! Enjoy drinking your whisky exactly how you like it.