Calories in 3 servings

From a table row to one serving

1. Read the per-100 g row for onion pakora 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 315 kcal ਅਤੇ 7.0 g protein per 100 g.
2. Weigh what is actually served. This site enters 6 pieces at 60 g (besan-battered onion, deep-fried). That weight is the number other calorie sites decline to state, and it is where their answers stop being answers.
3. Multiply, linearly, and print the working: 315 × 60 ÷ 100 = 189 kcal per serving. Nothing is rounded up, adjusted or smoothed — two servings are exactly twice one.
4. 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 serving   =  per 100 g  ×  serving grams ÷ 100
Onion Pakora       =    315 kcal ×   60 g ÷ 100  =  189 kcal
energy check       =  4P + 4C + 9F  ±15%  (±20% if fibre ≥ 6 g)

The full method, and where it is weakest →