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Thai Tea Calories: The Full Breakdown
Thai iced tea is a treat, and the numbers reflect it. A typical glass lands around 150 calories per 8 oz, or roughly 200–320 calories in a standard 16 oz serving — almost all of it from sweetened condensed milk and sugar. Here's the full picture, plus easy ways to lighten it.
Calories by size
Exact figures vary with how much condensed milk and sugar a vendor uses, but these are reliable ballparks for classic, sweetened cha yen:
| Serving size | Approx. calories | Approx. sugar |
|---|---|---|
| 8 oz (small) | ~150 | ~15–20 g |
| 12 oz (medium) | ~200–240 | ~22–30 g |
| 16 oz (large) | ~280–320 | ~30–45 g |
Figures are estimates for a standard sweetened recipe; cafe and bottled versions vary. Per the USDA, an 8 oz serving is about 154 calories.
Where the calories come from
The tea itself is essentially calorie-free. Almost everything in your glass comes from two ingredients:
- Sweetened condensed milk — the biggest contributor, packing both fat and a lot of sugar.
- Added sugar — many recipes sweeten the hot tea on top of the condensed milk.
- Evaporated milk / cream — the float on top adds a smaller amount of fat and calories.
How to make a lower-calorie Thai tea
- Cut the condensed milk to 1 tbsp and lean on a splash of unsweetened evaporated or oat milk.
- Sweeten lightly — let the spiced tea carry the flavor instead of piling on sugar.
- Go dairy-free with the bright, naturally lighter Thai lime tea (cha manao), which skips milk entirely.
- Brew it stronger so a smaller pour of milk still tastes rich — our cold-brew method is great for this.
Brew it yourself to control the numbers
Making it at home is the only way to dial in exactly how much milk and sugar goes in — and it's pennies per glass.
Check price on Amazon →FAQ
How many calories are in a 16 oz Thai iced tea?
Roughly 280–320 calories for a standard sweetened recipe, mostly from condensed milk and sugar. Lighter homemade versions can be well under 150.
Is Thai tea bad for you?
It's a sweet treat, not a health drink — fine in moderation. The black tea base has antioxidants, but the calories and sugar come from the milk and sweetener. See our honest health breakdown.
Does Thai tea have a lot of sugar?
Yes — a large glass can hit 30–45 g of sugar. Reducing the condensed milk is the single most effective way to cut it.
Keep reading
- Thai tea health benefits (and the honest caveats)
- How much caffeine is in Thai tea?
- The lighter, dairy-free Thai lime tea
Disclosure: this page contains affiliate links. As an Amazon Associate, Chaayen earns from qualifying purchases at no extra cost to you. Nutrition figures are general estimates and not medical advice.