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Peanut Butter
Price per ounce across jar sizes.
The cheapest peanut butter on Amazon right now is Amazon Grocery, Creamy Peanut Butter, 40 Oz at $0.105 / oz — 6 product lines compared, ranked by real price per oz.
💲 Prices and availability verified Aug 6, 2026, not live-updated yet — accurate as of that date and subject to change. Check Amazon for the current price before buying.
Price
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6 of 6 product lines · sorted by best price per unit
Best value
Amazon Grocery
Amazon Grocery, Creamy Peanut Butter, 40 Oz
$0.105 / oz
$4.18 total · 1 size
Skippy
SKIPPY Creamy Peanut Butter Spread, 40 oz Jar of Peanut Butter (2 Pack)
$0.119 / oz
$9.52 total · 4 sizes
365 by Whole Foods Market
365 by Whole Foods Market, Creamy Peanut Butter Spread, No Stir, 40 Ounce
$0.119 / oz
$4.76 total · 1 size
Skippy
SKIPPY Natural Peanut Butter Spread, Creamy, 7 g protein per serving, 15 oz. (12 Pack)
$0.138 / oz
$24.83 total · 2 sizes
Skippy
SKIPPY Natural Peanut Butter Creamy Spread, 26.5 oz Jar
$0.141 / oz
$3.74 total · 3 sizes
Jif
Jif Extra Crunchy Peanut Butter, 16 oz Jar
$1.57 / oz
$25.07 total · 1 size
Price filters apply to total listing price. Ranked by price per oz within your filters.