The short definition, also called pack weight, ppa
Pack size is how much a unit contains. Price-pack architecture is the planned ladder of sizes and prices a brand offers, such as a small trial pack, a standard pack and a family pack.
Part of the topic: Guide: discount depth and price against MRP
What price-pack architecture means
A brand rarely sells one size. It builds a ladder: a small pack at a low entry price, a regular pack for most shoppers, and a larger pack that costs less per gram. Each step has a job, from trial to loyalty, and the gaps between steps decide which one a shopper picks.
The ladder works only if each step makes sense against the others. A large pack that costs more per gram than the small one confuses shoppers and wastes the step.
How to compare pack sizes
Divide the selling price by the quantity and scale it to a common unit. Use per 100 g for goods sold by weight, per 100 ml for liquids, and per piece for things counted. Compare only packs on the same unit, and record the pack size from the pack itself, not from a title that may be wrong.
A worked example, with invented numbers. A detergent comes in 500 g at 60, 1 kg at 110 and 2 kg at 230. Per 100 g that is 12, 11 and 11.5. The 2 kg pack costs more per 100 g than the 1 kg pack, a broken step a shopper will notice.
How it shows up on Indian apps
Indian shoppers respond strongly to price points, so brands sell trial packs and sachets at a low entry price. Quick-commerce apps favour compact packs that fit a small basket, and some list only one or two steps of a brand's ladder. A combo pack is listed as its own product and needs converting before it is compared.
What a brand should check
- That every step of your ladder costs less per unit as the pack grows.
- Which steps each app lists, and which ones each nearby store stocks.
- That the pack size in each listing title matches the pack.
Common mistakes
- Comparing shelf prices of packs that hold different amounts.
- Mixing goods sold by weight with goods sold by volume or by piece.
- Trusting the pack size in a listing title without checking it.
Do not confuse with
- SKU. Pack size is the quantity in one pack, such as 200 g or 1 litre. Each pack size of a product is its own SKU, with its own listing and price.
What Rewalto's own readings show
From 19 October to 25 October 2026, Rewalto read 4,007 grocery staple listings sold by weight, 1,164 sold by volume, 85 sold by the piece and 29 sold one item at a time, across every app read. Each group is compared on its own unit, never with the others.
As of 25 October 2026. Source: Grocery staples price ladder, Rewalto's shelf readings.
Published 28 October 2026.