How to Use the Soju-Beer Mix Ratio Calculator
Somaek — soju mixed with beer — is a distinctly Korean drinking tradition with no real equivalent elsewhere; think of it as its own category of drink rather than a cocktail translated from something familiar. This calculator takes your soju shot count, beer glass count, and each drink's ABV, then works out the resulting volume ratio (soju to beer) and the final mixed ABV.
The calculation assumes a standard soju shot of about 1.7 oz (50ml) and a standard beer glass of about 6.8 oz (200ml). Multiplying each volume by its ABV — soju typically runs 16.5-20%, beer typically around 4.5% — gives the alcohol content, and dividing the combined alcohol by the total volume yields the mixed ABV. The commonly cited "golden ratio" is a soju-to-beer ratio of about 3:7 or 4:6, which lands the mix around 8-10% ABV.
Try different combinations of soju shots and beer glasses to see instantly whether your usual pour comes out mild or strong. Since soju ABV varies by brand, entering the number from the label gives you a more accurate result.
Use this as a reference the next time you're mixing drinks at a group dinner or gathering. The FAQ below explains the golden ratio and the ABV math in more detail.
Frequently Asked Questions
It comes down to taste, but a soju-to-beer ratio of about 3:7 or 4:6 is the most commonly favored mix for a smooth drink, landing around 8-10% ABV.
Multiply each drink's volume by its ABV to get the alcohol amount, add the two together, then divide by the total volume to get the mixed ABV.
Yes — you can enter the exact soju ABV, so both lighter and standard-strength soju are calculated accurately.