M & M's

M & M's Shrinkflation: What the Data Shows

Community reports indicate M & M's by Mars shrank about 20% between 1930 and 1960 — from 2.0 oz to 1.6 oz. At the latest reported price of $0.30, that works out to roughly $0.19 per ounce — about 25% more per ounce than the original size would have cost at the same price. In plain terms, you now pay noticeably more for each ounce of the same product. All figures here are community-submitted and reflect what shoppers have reported, not official manufacturer data.

Size-Change Summary

Each documented size change and its computed reduction, based on community-reported package sizes.

Price-Per-Ounce Analysis

The real cost of shrinkflation shows up in the price per ounce. Below, the latest reported price is measured against both the original and current package sizes.

At the latest reported price of $0.30, you now pay about $0.19 per ounce. For the original 2 oz size at that same price, you would have paid roughly $0.15 per ounce. That is about 25% more per ounce for the same product — the hidden price increase that shrinkflation creates.

For context, the earliest community report listed a price of $0.10, versus $0.30 most recently.

Figures are estimates derived from community-submitted sizes and prices, assuming the price held constant across the size change. Actual shelf prices vary by store and date.