Cheerios Family Size
General Mills
Cheerios Family Size Shrinkflation: What the Data Shows
Community reports indicate Cheerios Family Size by General Mills shrank about 11.5% (reported for 2025) — from 20.35 oz to 18 oz. At the latest reported price of $6.49, that works out to roughly $0.36 per ounce — about 13.1% 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.
Overall, the package has gone from 20.35 oz to 18 oz — a total reduction of 11.5% across 1 report.
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 $6.49, you now pay about $0.36 per ounce. For the original 20.35 oz size at that same price, you would have paid roughly $0.32 per ounce. That is about 13.1% more per ounce for the same product — the hidden price increase that shrinkflation creates.
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.
📊 Size History Timeline
Shrinkflation in Cereal
Cereal boxes are a well-documented shrinkflation category. Manufacturers frequently reduce the net weight while keeping the familiar box footprint on the shelf, so the price-per-ounce math is the most reliable way to spot a change.
Browse more Cereal products →How This Data Is Collected
Every size and price figure on this page is community-submitted by shoppers who noticed a change. Reports are shown as submitted and are unverified unless explicitly marked “Verified”, which means a moderator or supporting evidence confirmed the change. Prices vary by store, region, and date, so treat the per-ounce figures as informed estimates rather than official manufacturer data.
Want to check the math yourself? Use our price-per-ounce calculator to compare any two sizes and prices, or read how to calculate the real price per ounce. If you spot an error in a report, use the flag button on that entry.
What You Can Do
Spotted another change for this product?
📝 Add to TimelineYou can report historical shrinks too — just select the year it happened