Most THC seltzers are low- or zero-calorie (around 0–20 calories), while THC sodas and canned cocktails run higher (roughly 50–130). The THC itself adds almost no calories — what you’re counting comes from sugar and mixers, not the cannabinoid. So the drink style matters far more than the dose.
Where the calories come from
This is the part worth understanding, because it’s the whole reason THC drinks compare well to alcohol on calories.
In an alcoholic drink, the active ingredient is itself a major calorie source. The NIAAA defines a US standard drink as “any beverage containing 0.6 fluid ounces or 14 grams of pure alcohol.” Ethanol carries about 7 calories per gram — so roughly 98 calories come from the alcohol alone, before any sugar, malt, juice or mixer. It’s why a light beer has a floor it can’t get under and still be beer.
In a THC drink, the active ingredient is a rounding error. A 5mg or 10mg dose is measured in milligrams — far too small by weight to register a calorie count that would show up on a nutrition panel. The calorie count of any THC drink is driven by its base — sparkling water versus sweetened soda — and how much sugar or juice it contains. That’s why two drinks with the same THC dose can be wildly different on calories.
Calories by drink type
- THC seltzers: typically 0–20 calories. Often zero-sugar — the lightest option. Browse THC seltzers.
- THC tonics: usually low, but check for added sweeteners or functional ingredients.
- THC sodas: higher — often 50–130 calories from real sugar. See THC sodas.
- THC cocktails: vary by recipe; canned cocktails tend to land in the moderate range, still usually lighter than their boozy versions.
Seltzer versus soda is the single biggest calorie decision you will make here, and it comes down to the base rather than the cannabinoid — we break the two formats down side by side in THC seltzer vs THC soda.
How they compare to alcohol
A 12 oz regular beer at about 5% ABV is one standard drink, so roughly 98 of its calories are the ethanol itself, with the rest coming from carbohydrate. Wine and spirits carry that same ~98-calorie alcohol floor per standard serving, plus whatever the mixer adds. A low-calorie THC seltzer can deliver a buzz for a fraction of that, with no hangover — one reason they’re popular as an alcohol alternative.
How to pick a low-calorie option
Reach for a zero-sugar seltzer, check the nutrition panel on the can, and watch for added juice or sweeteners. Our low-dose seltzers are an easy place to start if you want light on both calories and dose. If you would rather start from specific brands than from a category, our roundup of the best hemp beverages of 2026 covers what to try and how to choose.
Frequently asked questions
How many calories are in a THC drink? Most THC seltzers have about 0 to 20 calories, while THC sodas and canned cocktails run roughly 50 to 130. The THC itself adds almost no calories; sugar and mixers drive the count, so the drink style matters far more than the dose.
Does THC have calories? Practically none. The dose is too small by weight to matter — calories in a THC drink come from sugar and mixers.
Are THC seltzers low-calorie? Usually yes — many are zero-sugar and in the 0–20 calorie range.
Do higher-dose drinks have more calories? No. A 50mg drink isn’t higher in calories than a 5mg one unless it has more sugar. Dose and calories are unrelated.
How does that compare to a beer? A US standard drink contains 14 grams of pure alcohol, and alcohol carries about 7 calories per gram — roughly 98 calories from the ethanol alone, before any carbohydrate. A zero-sugar THC seltzer starts near zero.
Calorie ranges are general estimates; always check the label. Not medical advice. Must be 21+.
