Most plain tomato juice lands near 40–45 calories per 8-oz (240 ml) glass, with labels shifting based on ingredients and serving size.
You’re here for one thing: how many calories are in tomato juice? The good news is that plain tomato juice is a low-calorie drink for its volume, so you can pour a full glass without feeling like you just drank dessert.
Still, “tomato juice” on a shelf can mean a few different products. Some are 100% juice. Some are a tomato-and-vegetable blend. Some sneak in sugar. Some pack a salty punch. Those label tweaks can nudge calories up or down.
How Many Calories Are In Tomato Juice? By Serving Size
Most calorie counts for tomato juice start from a simple baseline: canned tomato juice without added sugar sits around 17 calories per 100 grams. From there, you scale by the amount you drink.
Use the table below as a fast calculator. It gives a clean estimate for plain juice, then flags where the label can differ.
| Serving Or Product | Calories | What Changes The Count |
|---|---|---|
| 100 g tomato juice | 17 kcal | Baseline for many USDA entries |
| 1 fl oz (30 ml) | 5 kcal | Label rounding can shift by a few calories |
| 6 oz (180 ml) small glass | 31 kcal | Heavier blends may run higher |
| 8 oz (240 ml) standard glass | 41–42 kcal | Added sugar raises calories fast |
| 11.5 oz (340 ml) common can | 58–60 kcal | Recipes vary by brand |
| 12 oz (355 ml) bottle | 60–62 kcal | “Cocktail” blends can carry more carbs |
| 16 oz (473 ml) large cup | 80–83 kcal | Often two servings on the label |
| Homemade (strained tomatoes) | 35–55 kcal per 8 oz | Straining and pulp change solids |
| Tomato juice with added sugar | 50–90 kcal per 8 oz | Each 1 tsp sugar adds 16 kcal |
| Spicy tomato mix (with sauces) | 45–120 kcal per 8 oz | Mix-ins can add carbs and oils |
Why Tomato Juice Calories Stay Low
Tomatoes are mostly water. When you turn them into juice, you keep a lot of that volume with only a modest amount of carbs. That’s why a glass feels “full size” but the calorie number stays calm.
The calories you do get come mainly from natural sugars in the tomato. There’s a small amount of protein and almost no fat in plain tomato juice, so the total doesn’t have many places to hide.
What Makes One Tomato Juice Higher In Calories Than Another
If you compare two cartons and the calorie line looks different, it usually comes down to ingredients. These are the most common drivers.
Added Sugar And Sweetened Blends
“100% juice” is one thing. A “juice drink” or “cocktail” can be another. Once sugar or syrup enters the mix, calories climb fast because sugar is pure energy with no volume.
Scan the ingredients list. If you see sugar, cane sugar, corn syrup, honey, or fruit juice concentrates near the top, treat that bottle as a different drink than plain tomato juice.
Vegetable Juice Mixes
Some bottles are tomato-forward blends with carrots, beets, celery, or spinach. These can still be low in calories, but the total depends on which vegetables lead the mix and whether the brand adds fruit juice for sweetness.
Pulp Level And Thickness
A thin, strained juice has fewer solids than a thick, pulpy one. More solids can mean a few more carbs per cup. The change is usually small, but it can show up on labels.
Salt, Seasonings, And Spicy Mixes
Salt adds no calories, but pre-mixed spicy tomato drinks often include sauces, sweeteners, or extra vegetable purees. Those add-ons can bump calories well past plain juice.
How To Read A Tomato Juice Label Without Getting Tricked
The label gives you the answer, but it can be easy to misread it at a glance. Two checks keep you on track.
Start With Serving Size
One bottle might list calories per 8 oz. Another lists per 1 cup. Another lists per container. If you want a fair check, match serving sizes first. The FDA’s page on serving size on the Nutrition Facts label breaks down that top line.
Confirm The Food Type In A Searchable Database
If you want a second reference point, search USDA FoodData Central for “tomato juice” and compare calories per 100 g across entries. That helps you spot sweetened drinks that borrow the tomato name.
Watch For “Servings Per Container”
That “2 servings” note is the classic trap. If you drink the whole bottle, double the calories, carbs, sodium, and everything else. Yep, the whole bottle counts.
Check Total Carbs And Added Sugars
Calories often track carbs in tomato juice. If carbs jump, calories follow. Added sugars are the loudest signal that the drink is sweetened.
Calories In Tomato Juice Compared With Other Drinks
Tomato juice tends to beat soda, sweet tea, and many coffee drinks on calories per cup. It also runs lower than many fruit juices because tomatoes carry less sugar than fruits like grapes or apples.
That said, the “right” drink depends on your goal. If you want a low-calorie savory option, tomato juice fits nicely. If you want a post-workout carb hit, it may feel too light.
How Filling It Feels Per Calorie
Tomato juice can feel satisfying for its calorie count because it’s mostly water with a savory taste. That combo slows down “mindless sipping,” since it doesn’t go down like a sweet drink.
If you want it to hold you longer, treat it like a snack. Pair a small glass with a boiled egg, a few nuts, or a piece of toast. The juice calories stay the same, but the whole break feels more like food.
Calories In Tomato Juice When You Make It At Home
Homemade tomato juice can land close to store-bought, but your method matters. A blender-and-strain approach yields a thinner juice with fewer solids. A whole-tomato blend keeps more pulp, so calories rise a bit.
Salt and spices won’t change calories, but sugar, honey, or fruit additions will. If you like a sweeter sip, try a splash of carrot juice or a pinch of salt first. Many people read “sweet” as “less bitter,” and salt can shift that taste with no added calories.
Homemade Tomato Juice Steps
- Wash ripe tomatoes and cut into chunks.
- Blend until smooth.
- Heat to a gentle simmer for 5–10 minutes, then cool.
- Strain if you want a thinner juice, or keep the pulp for a thicker pour.
- Season with salt, pepper, celery seed, or a squeeze of lemon.
If you want numbers, measure what you pour. Weigh the finished juice in grams, then scale from 17 calories per 100 g to your glass.
What Else Matters Besides Calories
Calories are only one label line. Tomato juice can also bring sodium and potassium, which may matter more than the calorie count for some people.
Sodium Can Run High
Many canned tomato juices are salty most days. If you track sodium, low-sodium versions can make life easier. If you’re on a sodium limit, read the milligrams per serving and the servings per container before you drink the whole thing.
Potassium Can Be A Plus Or A Watch Item
Tomatoes carry potassium, so tomato juice often does too. That can be helpful for many people. If you have kidney disease or take potassium-sparing meds, check with your clinician before making tomato juice an everyday drink.
Acidity Can Affect Comfort
Tomato juice is acidic. If it bothers your stomach, try smaller servings, drink it with food, or switch to a lower-acid tomato product. Your body sets the rules here.
How To Keep Tomato Juice Calories Low
Tomato juice is already light on calories, but little choices can keep it steady and predictable.
| Move | Calorie Effect | Why It Helps |
|---|---|---|
| Pick “100% tomato juice” | Often lowest | Avoids added sugars and syrups |
| Check added sugars on the label | Stops hidden calories | Sweeteners lift calories with no extra volume |
| Pour 6–8 oz, not a full 16 oz | Halves the total | Many bottles hold two servings |
| Use spices, hot sauce, citrus | Near zero change | Flavor without sugar or oils |
| Skip sweet cocktail-style mixers | Can save 30–80 kcal | Mixers may add sugar and sauces |
| Choose low-sodium for daily sipping | No calorie change | Lowers sodium without touching calories |
| Blend with ice for a slushy texture | No calorie change | More volume for the same calories |
| Pair with a protein bite | No juice calorie change | Makes it feel like a mini meal |
A Simple Way To Estimate Your Glass
If you don’t have the carton nearby, you can still get a clean estimate. Start with this rule: plain tomato juice lands near 17 calories per 100 g. A standard 8-oz glass is close to 240 g, so you land near 41 calories.
Then do one quick check. Is it sweetened? Is it a cocktail blend? If yes, check the package label when you can, since the drink is no longer plain tomato juice.
Practical Wrap Up
Circle back to the question: how many calories are in tomato juice? For plain tomato juice, you’re usually looking at around 40–45 calories per 8-oz glass. If the label shows added sugar or a cocktail-style mix, expect more.
Pour the serving size you mean to drink, read the calories for that serving, and you’re done. No drama, no guesswork.