As of September 2026 · 146 listings tracked across Amazon, Walmart & eBay
Prices change fast and stock disappears faster — YMMV.
Median across all 146 tracked listings: 16¢ per oz. The worst deal we saw ran $1.17 per oz — same product category, 22.2× the price per unit.
Best-value price is down 41.5% since last month — a good month to stock up.
Lowest we've ever tracked: 5.3¢ per oz (September 2026).
Once a month we pull live Peanut Butter listings from Amazon, Walmart and eBay, read the honest quantity out of each one (ozs, in this case — the unit that actually matters), and divide the real price by it. Coupons that change what you'd pay today are applied; "subscribe & save" teasers are not. Then everything gets ranked by cost per oz, because a big box with a small number inside is still a small number.
Check today's Peanut Butter prices yourself →
Amazon doesn't allow affiliate sites to run price alerts, so we chose the alerts. If eBay or Walmart links ever earn us a commission, they'll be labeled (paid link) — and it never changes the price you pay.
Prices checked September 1, 2026. Prices change fast — treat this page as a map, not gospel, and YMMV. For today's numbers, run a live search.
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