Do Vapes Have Calories?

Yes, e-liquid contains calories on paper, but the amount is tiny, and vaping is not considered a meaningful source of dietary calories. The calories come mainly from vegetable glycerine (VG) and propylene glycol (PG), the two base ingredients that make up most of any e-liquid, whether it’s a supermarket own-brand or a popular range like Elux Liquids. Because vape liquid is inhaled as an aerosol rather than eaten or drunk, its calorie content on the label doesn’t translate into dietary energy the way food or drink does.

How Many Calories Are in a Vape?

VG and PG each carry a theoretical energy value of roughly 4 calories per gram, which is where the “calories” in vape juice come from. Based on that figure, here’s roughly what different amounts of e-liquid work out to on paper:

For context, that’s less than half the calories in a can of soft drink for an entire 30ml bottle, and even that figure overstates things, because it assumes every calorie in the liquid is absorbed by the body, which isn’t how vaping works.

Does Your Body Actually Absorb Vape Calories?

Calories only count toward your daily intake if your body can actually extract and use that energy, and that happens through digestion. When you eat or drink, food passes through your stomach and intestines, where it’s broken down and absorbed into the bloodstream.

Vaping doesn’t work that way. E-liquid is heated into an aerosol and inhaled into the lungs, which exchange oxygen and carbon dioxide; they aren’t built to extract energy from what you breathe in. Most of the aerosol is exhaled straight back out, and there’s no established digestive pathway for the small amount that stays in the airway to be converted into usable energy.

This is why researchers and manufacturers consistently draw a line between the theoretical calorie value printed on an e-liquid bottle and the calories a person actually absorbs from vaping it, which is understood to be negligible to none. It’s also why you shouldn’t treat the “40 calories in a 10ml bottle” figure as something you’re actually consuming.

Where the Calories in Vape Liquid Come From

Vegetable glycerine (VG) is a thick, naturally sweet-tasting liquid that produces the bulk of vapour. It’s a carbohydrate-based ingredient, and it carries the largest share of any e-liquid’s calorie value.

Propylene glycol (PG) is a thinner liquid that carries flavour and contributes to throat hit. It has a similar calorie value to VG but usually makes up a smaller proportion of sweeter, high-VG liquids.

Nicotine and flavourings make up a much smaller share of most e-liquids and aren’t the main source of any calorie content, though flavourings and sweeteners can vary between brands and formulations.

Does Vaping Affect Your Appetite?

This is where nicotine, not calories, actually comes into the picture. Nicotine is understood to trigger dopamine release in the brain, which can suppress appetite and slightly increase resting metabolic rate. This is why some people notice reduced hunger or smaller portions when they start vaping or smoking, and why some report increased appetite when they cut down or quit.

This effect is separate from the calorie content of e-liquid, and it’s a much more likely explanation for any weight changes linked to vaping than the calories in the liquid itself. Vaping should not be used as a deliberate method of appetite or weight control; nicotine is addictive, and vaping carries its own health risks.

Can Vaping Cause Weight Gain?

There’s no good evidence that the calorie content of e-liquid causes weight gain. Weight is influenced by a mix of factors, food intake, activity levels, metabolism, sleep, medication and nicotine use among them, and the calories in vape juice are not considered a meaningful contributor.

If you’ve switched from smoking to vaping and noticed a change in weight, nicotine’s effect on appetite is a far more plausible explanation than the calorie content of your e-liquid.

Do Sweet Vape Flavours Contain Sugar?

No, not typically. A dessert, fruit or candy-style flavour doesn’t mean the e-liquid contains the sugar or calories of the food it’s named after; a “cheesecake” or “cola” flavoured vape isn’t nutritionally equivalent to eating cheesecake or drinking cola.

The sweetness in most e-liquids comes from two sources: the mildly sweet taste of VG itself, and small amounts of non-caloric, food-grade sweeteners such as sucralose, the same type used in diet drinks, rather than table sugar. This holds across most popular ranges too: dessert and fruit-flavoured lines from brands like Elux Vape Juice, ElfLiq Salts and Bar Juice 5000 get their sweetness the same way, through VG and flavourings rather than added sugar. Some manufacturers may use different formulations, so if you want certainty, check the ingredients list on a specific product rather than going by flavour name or sweetness alone.

How Many Calories Are in a Puff?

There’s no fixed calorie-per-puff figure, because how much e-liquid is converted into aerosol depends on:

• Device wattage and coil resistance
• The VG/PG ratio of the liquid
• Puff duration and frequency
• Airflow settings
• Individual vaping habits

As a rough guide, a single puff typically works out to well under 0.1 calories on paper, a level so small that even frequent vaping across a full day doesn’t add up to a meaningful figure.

Are Zero-Nicotine Vapes Calorie-Free?

Not necessarily. Removing nicotine doesn’t remove VG or PG, so a zero-nicotine e-liquid can still carry the same theoretical calorie value as one with nicotine. Similarly, “sugar-free” isn’t a meaningful label for e-liquid, since standard formulations don’t contain table sugar in the first place; the calorie value comes from VG and PG regardless.

Do Elux Vapes Have Calories?

The same principles apply to any branded e-liquid, including Elux. Elux liquid is formulated from the same base ingredients as other e-liquids, VG and PG, so it carries the same kind of theoretical calorie value on paper, roughly 4–5 calories per millilitre depending on the exact VG/PG ratio used.

That means a bottle of Elux vape juice isn’t meaningfully different from any other e-liquid when it comes to calories: the figure is small, it’s inhaled rather than eaten, and there’s no established evidence that it’s absorbed in a way that affects your diet. This applies across the range, where the added nicotine salt doesn’t change the calorie picture; nicotine itself carries no calories.

If you’re comparing specific Elux liquids by flavour or format, the exact VG/PG blend can shift the theoretical calorie value slightly, but not by an amount that’s relevant to weight management either way.

Conclusion

Vape liquid technically contains calories mostly from VG and PG, but because it’s inhaled rather than eaten or drunk, it isn’t considered a meaningful source of dietary energy. A 10ml bottle might carry a theoretical ~40–50 calories, but there’s no established route for your body to absorb that in any significant way. If you’re weight-conscious, the calories in vape liquid aren’t something to worry about, but vaping shouldn’t be used as a weight-control method, since nicotine is addictive and vaping isn’t risk-free.

Frequently Asked Questions (FAQs)

1. How many calories are in a vape?

E-liquid carries roughly 4–5 calories per millilitre from its VG and PG content. A 10ml bottle works out to around 40–50 calories on paper, and a 2ml disposable to around 8–10 calories, but this is a theoretical figure, not calories actually absorbed by the body.

2. Does vaping make you gain weight?

Not because of its calorie content. The calories in e-liquid are considered negligible in dietary terms. Any weight change linked to vaping is more likely tied to nicotine’s effect on appetite than to calories.

3. Does vape juice have sugar?

No, most e-liquids get their sweetness from VG and non-caloric sweeteners like sucralose, not table sugar. A sweet flavour name doesn’t mean the liquid contains sugar.

4. Can vaping cause weight gain when you quit smoking?

Weight changes after quitting smoking are usually linked to nicotine’s effect on appetite rather than the switch to vaping itself. This is a separate issue from the calorie content of e-liquid.

5. Are sweet vapes higher in calories than other flavours?

Not meaningfully. Flavour and sweetness come from flavourings and sweeteners used in trace amounts, which don’t add significant calories regardless of how sweet the vape tastes.

6. Do Elux Nic Salts have calories?

Yes, in theory, Elux nic salts are made from the same VG/PG base as any other e-liquid, so they carry a similar small calorie value on paper. As with other vapes, this isn’t considered a meaningful source of dietary calories.

7. Should I count vape calories in my daily intake?

No, there’s no reliable basis for treating the calorie value printed on e-liquid as part of your daily dietary intake, since it isn’t absorbed the way food or drink calories are.