Chaas (Buttermilk) calories
per glass, not per 100 g
The short answer
One glass, weighed
75kcal 1 glass — taken as 250 g — has about 75 calories, with 4.0 g protein, 3.8 g carbohydrate and 5.0 g fat. Two come to 150 kcal, three to 225 kcal.
Per 100 g, chaas (buttermilk) carries 30 kcal and 1.6 g protein.
SOURCE·ICMR–NIN dietary guidance for Indians + weighed portions·1 glass entered at 250 g·REVIEWED JUL 2026
Serving assumed: 1 glass ≈ 250 g — salted, spiced, no sugar — the lightest drink on this list. Change the portion and every number below changes with it.
SOURCE·ICMR–NIN dietary guidance for Indians + weighed portions·1 glass entered at 250 g·REVIEWED JUL 2026
From a table row to one glass
- Read the per-100 g row for chaas (buttermilk) out of the Indian Food Composition Tables 2017 — analysed on Indian samples, so Indian wheat and Indian milk are not swapped for American ones. It gives 30 kcal and 1.6 g protein per 100 g.
- Weigh what is actually served. This site enters 1 glass at 250 g (salted, spiced, no sugar — the lightest drink on this list). That weight is the number other calorie sites decline to state, and it is where their answers stop being answers.
- Multiply, linearly, and print the working: 30 × 250 ÷ 100 = 75 kcal per glass. Nothing is rounded up, adjusted or smoothed — two glasses are exactly twice one.
- Reconcile the energy against its own macronutrients with Atwater factors on every build. A row more than 15% away from 4P + 4C + 9F (20% above 6 g of fibre) stops the build rather than shipping.
per glass = per 100 g × serving grams ÷ 100 Chaas (Buttermilk) = 30 kcal × 250 g ÷ 100 = 75 kcal energy check = 4P + 4C + 9F ±15% (±20% if fibre ≥ 6 g)
Chaas (Buttermilk), entered by the portion
The kitchen ledger: one glass at 250 g, then two, then three. Every row is the row above multiplied — nothing is rounded up or quietly adjusted.
| Portion | Grams | Calories | Protein | Carbs | Fat | Fibre |
|---|---|---|---|---|---|---|
| 1 glass | 250 g | 75 kcal | 4.0 g | 3.8 g | 5.0 g | 0.0 g |
| 2 glasses | 500 g | 150 kcal | 8.0 g | 7.5 g | 10.0 g | 0.0 g |
| 3 glasses | 750 g | 225 kcal | 12.0 g | 11.3 g | 15.0 g | 0.0 g |
SOURCE·ICMR–NIN dietary guidance for Indians + weighed portions·1 glass entered at 250 g·REVIEWED JUL 2026
Kept in kilocalories — the "calories" printed on a packet. Carbohydrate is available carbohydrate. Fibre is entered on its own line and is counted in neither the carbohydrate column nor the energy figure.
The 100 g column, kept for the record
Because every other site quotes it, and because you should be able to check our arithmetic against theirs.
| Nutrient | Per 100 g | Per 1 glass (250 g) |
|---|---|---|
| Energy | 30 kcal | 75 kcal |
| Protein | 1.6 g | 4.0 g |
| Carbohydrate (available) | 1.5 g | 3.8 g |
| Fat | 2.0 g | 5.0 g |
| Dietary fibre | 0.0 g | 0.0 g |
SOURCE·IFCT 2017 + published recipe weights·REVIEWED JUL 2026
What it takes to burn off 1 glass of chaas (buttermilk)
Minutes of activity for a 70 kg adult to spend 75 kcal, using MET values from the 2024 Adult Compendium of Physical Activities. This is a scale check, not a licence — appetite rises with activity and the two do not cancel neatly.
SOURCE·2024 Adult Compendium of Physical Activities·MET × 3.5 × 70 kg ÷ 200·REVIEWED JUL 2026
Calculated as MET × 3.5 × 70 kg ÷ 200 kcal per minute. Full working on the method page, and the whole activity dataset at BurnLab.
Where chaas (buttermilk) sits in an Indian plate
Among the 14 beverages entries on this site, chaas (buttermilk) ranks 7th for protein (1.6 g per 100 g) and 12th for energy density (30 kcal per 100 g). The protein leader in the group is thandai at 4.0 g.
Protein supplies 21% of its energy, which is high for an Indian staple and the reason it keeps you full longer than the calorie count suggests. There is very little fibre here — 0.0 g per 100 g.
A realistic day matters more than any single dish. If you are building a meal, the thali builder adds several foods and their real servings together in one total.
Questions
How many calories are in 1 glass?
About 75 kcal for 1 glass, taken as 250 g (salted, spiced, no sugar — the lightest drink on this list). Two come to roughly 150 kcal and three to 225 kcal. Per 100 g, chaas (buttermilk) carries 30 kcal.
How much protein is in chaas (buttermilk)?
1.6 g per 100 g, which works out to 4.0 g in 1 glass. That is 21% of the energy in this food, and ranks 7th of 14 in the beverages group on this site.
Is chaas (buttermilk) good for weight loss?
At 30 kcal per 100 g it is on the lighter side, so portion size is forgiving. The protein share is high enough to be genuinely filling. No single food makes or breaks a diet; the total for the day does.
Why does this differ from other calorie sites?
Two reasons. First, most sites publish a per-100 g figure from a US database and leave you to guess what a roti or a katori weighs; this page states the serving weight up front. Second, home-cooked Indian food varies enormously with oil and ghee — the figures here assume salted, spiced, no sugar — the lightest drink on this list. A restaurant version can be 30 to 60% higher.
Similar foods
Four more from beverages, and three from elsewhere with a similar energy density.
Where this number comes from
Recipe analysis from sourced ingredients. Carbohydrate is available carbohydrate — dietary fibre excluded and listed separately.
Recipe and finished weight: 125 g curd churned with an equal weight of water, salt, jeera and curry leaves. Finished weight 250 g, one glass.
Confidence in the quantities: high. Two or three ingredients, one of them dominant, little or no cooking fat. This dish does not move much between households.
Energy on this row is the Atwater sum of the ingredients above, not an independent measurement, so it reconciles by construction — that is a property of the method and not evidence that the quantities are right. The ingredient weights are this site's assumption; the table rows behind each ingredient are not. Chaas is curd cut with water. The hand-entered row it replaces was close to neat curd, which is buttermilk with no water in it. One ingredient here carries no table row of its own — curd — so this dish inherits that gap and is no more checkable than that ingredient is.
Every food on this site carries this label. What each one means, and how many foods sit behind each, is set out on the method page.
Nutrient values are averages for the stated preparation, based on the Indian Food Composition Tables 2017 (ICMR–NIN) and standard recipe analysis. Energy is reconciled against the macronutrients with Atwater factors on every build. General information only — not medical or nutrition advice. Home-cooked Indian food varies enormously with oil, ghee and portion size; every value here is an average for a stated serving, with the assumption shown.
SOURCE·IFCT 2017 + published recipe weights·REVIEWED JUL 2026
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