One 8-fl-oz cup of unsweetened brewed tea has about 2 calories, and many cups round to zero on a label.
If you want a quick calorie check for plain tea, you’re in the right place. Brewed tea without sugar is essentially water with a trace of dissolved solids. That’s why nutrition databases list brewed black and green tea at ~2 kcal per 8 fl oz, with some entries rounding to 0. The tiny number comes from minute carbohydrates extracted from the leaf. Below you’ll find the numbers by tea type, how brewing strength shifts totals, and what common add-ins do to an otherwise “free” cup.
How Many Calories In Cup Of Tea Without Sugar? By Tea Type
The figures below reflect unsweetened brewed tea made with water only. Values are typical ranges; they vary with leaf, brand, leaf-to-water ratio, and steep time.
| Tea Type (Unsweetened) | 8 fl oz (240 ml) | 12 fl oz (355 ml) |
|---|---|---|
| Black Tea (Brewed) | ~2 kcal | ~3 kcal |
| Green Tea (Brewed) | ~2 kcal | ~3 kcal |
| Oolong Tea (Brewed) | ~2 kcal | ~3 kcal |
| White Tea (Brewed) | ~1–2 kcal | ~2–3 kcal |
| Pu-erh/Dark Tea (Brewed) | ~2 kcal | ~3 kcal |
| Decaf Black/Green (Brewed) | ~1–2 kcal | ~2–3 kcal |
| Matcha (Powder Whisked In) | ~5–10 kcal | ~8–15 kcal |
| Herbal Infusions* (e.g., mint, chamomile) | ~0–2 kcal | ~0–3 kcal |
*Herbal “teas” aren’t Camellia sinensis; most are calorie-free unless fruit pieces or grains add trace carbs.
Why Labels Often Show “0 Calories”
U.S. nutrition labeling lets manufacturers round to 0 when a serving has fewer than 5 calories. Since brewed tea sits around ~2 kcal per cup, many labels print zero. That doesn’t change the basics: plain tea contributes a negligible amount of energy. For a primary reference on brewed tea, see USDA FoodData Central: Black Tea, Brewed and USDA FoodData Central: Green Tea, Brewed.
Calorie Math Without Sugar: What Actually Adds Up
Two things move the number: stronger extraction and extras in the cup. Stronger leaf-to-water ratios pull a bit more carbohydrate, but you’re still near the floor. Add-ins, on the other hand, change the picture fast—especially sweeteners and creamy milks.
Brewing Strength And Steep Time
A heaping teaspoon in a small mug yields a darker brew and slightly higher calories than a light steep. The practical difference stays tiny for straight tea because the dissolved solids remain low. Expect a swing of just 1–3 kcal across typical strengths for 8–12 fl oz. Matcha is the exception because you drink the ground leaf itself.
Matcha: The Special Case
Matcha blends the leaf into the water, so even a thin ceremonial bowl carries measurable calories from the leaf’s proteins and carbs. A light 8-fl-oz preparation often lands in the ~5–10 kcal range. Thicker styles climb from there.
Close Variant: Calories In A Cup Of Tea Without Sugar (What To Expect Day To Day)
Here’s the rule of thumb most tea drinkers can use daily: an 8-fl-oz cup of unsweetened black or green tea averages ~2 kcal; a 12-fl-oz café cup is still only ~3 kcal. Those numbers barely move the needle on a calorie budget. That’s one reason unsweetened tea qualifies as a low-calorie beverage in nutrition guidance.
Quick Reference For Popular Serving Sizes
Not everyone drinks the same mug size. Use these typical estimates for plain brewed tea:
- 6 fl oz teacup: ~1–2 kcal
- 8 fl oz standard cup: ~2 kcal
- 12 fl oz tall mug: ~3 kcal
- 16 fl oz large mug/tumbler: ~4 kcal
Why Sugar Changes Everything
Sugar carries 4 calories per gram. One level teaspoon is about 4 grams, which adds ~16 calories on the spot. Two teaspoons add ~32 calories; three teaspoons, ~48. That’s why “without sugar” keeps tea nearly calorie-free. For the basic energy math behind sugars, see the FDA’s one-page explainer on added sugars on the Nutrition Facts label.
What About Milk, Creamers, And Non-Dairy? (No Sugar Added)
Milk and plant milks bring calories even without sweetener. The exact amount depends on fat content and serving size. Many tea drinkers use just a splash, so tablespoons are the most helpful unit.
How A Splash Changes The Cup
Dairy contributes lactose and fat; non-dairy adds a mix of starches, nuts, or soy solids. A single tablespoon usually won’t move you out of the “very low” zone, but a generous pour can stack up. Use the table below as a quick guide when you don’t add sugar.
| Add-In (Unsweetened) | Typical Calories Per Tbsp (~15 ml) | Notes |
|---|---|---|
| Skim/Nonfat Milk | ~5 kcal | Leanest dairy; lightens color, mild taste. |
| 2% Milk | ~7 kcal | A bit creamier; modest jump vs. skim. |
| Whole Milk | ~9 kcal | Fuller body; most calories among common dairy splashes. |
| Half-And-Half | ~20 kcal | Richer blend of milk and cream. |
| Unsweetened Almond Milk | ~2 kcal | Usually the lowest-cal non-dairy splash. |
| Unsweetened Soy Milk | ~5 kcal | Protein-rich; neutral to beany flavor. |
| Unsweetened Oat Milk | ~7 kcal | Slight cereal note; calories vary by brand. |
Real-World Examples (No Sugar)
- 8 fl oz black tea + 1 tbsp skim milk ≈ ~7 kcal total
- 8 fl oz black tea + 2 tbsp 2% milk ≈ ~16 kcal total
- 12 fl oz green tea + 1 tbsp half-and-half ≈ ~23 kcal total
- 8 fl oz oolong + 2 tbsp unsweetened almond milk ≈ ~6 kcal total
How To Keep Tea Calorie-Light (Without Losing Flavor)
Steep Smart
Use fresh, hot water and the right time for the style—about 2–4 minutes for black, 1–3 minutes for green, 3–5 minutes for oolong. Proper steeping boosts aroma and body so you don’t reach for sweetener.
Play With Leaf And Water
A slightly higher leaf dose can deliver more flavor without needing sugar. Stay within your taste range and you’ll still sit near “trace calories.”
Lean On Citrus And Spice
Lemon, orange peel, ginger, cinnamon, cardamom, mint, or a vanilla bean scrap can punch up flavor for almost no calories. Whole spices add aroma; don’t eat the solids and you’ll add virtually nothing to the tally.
Choose Naturally Flavorful Styles
Fruity Darjeeling, malty Assam, toasty Hojicha, floral Tieguanyin—styles with character often need no help. Try a few and stick with the ones that taste sweet to you without sugar.
Serving Sizes, Mugs, And “Refills”
Restaurant and café mugs vary from 8 to 16 fl oz or more. If you’re counting, log by the ounce: each extra 4 fl oz of plain brewed tea adds roughly 1 kcal. That’s still trivial, but it keeps your notes tidy and helps when you start mixing in milk.
Common Myths About Plain Tea Calories
“Tea Always Has Zero Calories.”
It’s close, but not absolute. Brewed tea usually sits near ~2 kcal per cup. That’s small enough to round down on many labels, yet it’s still not literally zero.
“Decaf Has Fewer Calories.”
Decaffeination targets caffeine, not carbs. Expect nearly the same trace calories as regular brews.
“Herbal Tea Can’t Have Calories.”
Most herbs brew to zero or near-zero, but fruit-heavy blends or grain infusions may contribute a gram or two of carbohydrate to a large mug. That still keeps you in the “token” zone unless sweetened.
Evidence Check: Where These Numbers Come From
National databases list brewed tea around ~2 kcal per 8 fl oz serving because the dissolved carbohydrate is tiny. You can verify this with entries like USDA FDC black tea, brewed and USDA FDC green tea, brewed. For sweeteners in general, the FDA notes that carbohydrates (including sugars) supply 4 calories per gram, which is why even a single teaspoon of table sugar adds ~16 calories to your cup; see the FDA’s added sugars label guide.
Bottom Line For Your Log
Plain brewed tea without sugar is about as close to “free calories” as beverages get. Count ~2 kcal per 8 fl oz for black or green tea, scale with mug size, and add calories only for what you pour in afterward. Keep sweeteners out, choose bolder leaves or a pinch of citrus, and your daily tea habit stays light without feeling spartan.