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Protein Powder
Price per ounce of protein powder.
The cheapest protein powder right now is PBfit Classic Peanut Butter Powder 30 Oz, Peanut Spread with 8g Protein at $0.426 / oz — 10 product lines compared, ranked by real price per oz.
💲 Prices and availability verified Oct 30, 2026, not live-updated yet — accurate as of that date and subject to change. Check the retailer for the current price before buying.
Price
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10 of 10 product lines · sorted by best price per unit
Best value
PBfit
PBfit Classic Peanut Butter Powder 30 Oz, Peanut Spread with 8g Protein
$0.426 / oz
$12.77 total · 1 size
Dymatize
Dymatize Super Mass Gainer, 52g Protein Powder, Gourmet Vanilla, 6 lb | 1280 Calories, 245g Carbs, 10.7g BCAAs, Whey Protein + Casein, Amino Acids for Muscle Support, 1g Creatine, 8 Servings
$6.66 / lb
$39.98 total · 1 size
Optimum Nutrition
Optimum Nutrition Serious Mass Weight Gainer Protein Powder, Vanilla, 6LB
$9.65 / lb
$57.88 total · 1 size
Muscle Milk
Muscle Milk Genuine Protein Powder, Strawberries ‘N Crème, 1.93 Pounds, 13 Servings, 32g Protein, 3g Sugar, Calcium, Vitamins A, C & D, NSF Certified for Sport, Energizing Snack, Packaging May Vary
$12.01 / lb
$23.18 total · 1 size
Revolution Nutrition
Revolution Nutrition, High Whey, Protein Powder 6LB, Whey Protein, Gluten Free, 25g of Protein Per Scoop, 2.7kg, 73 Servings (Chocolate Cake, 6 Pound)
$13.33 / lb
$79.99 total · 1 size
Muscle Milk
Muscle Milk Pro Series Protein Powder Supplement, Knockout Chocolate, 2 Pound, 11 Servings, 50g Protein, 3g Sugar, 20 Vitamins & Minerals, NSF Certified for Sport, Workout Recovery, Packaging May Vary
$13.99 / lb
$27.97 total · 1 size
Body Fortress
Body Fortress Super Advanced Whey Protein Powder, Vanilla, 3.9 lbs
$15.77 / lb
$61.50 total · 1 size
Animal
Animal 100% Whey Protein Powder, 20G High Protein | Strawberry 4LB | Great Tasting Isolate Blend for Pre & Post Workout | Digestive Enzymes & 5.6g BCAAs | Build Strength, Muscle & Recover Faster
$16.24 / lb
$64.95 total · 1 size
MuscleTech
MuscleTech Whey Protein Powder (Strawberry, 4LB) - 30g Protein | Nitro-Tech Ultimate Muscle Building Formula with Whey Protein Isolate - 3g of Creatine & 6.8g of BCAA - Packaging May Vary
$16.38 / lb
$65.51 total · 1 size
MuscleTech
MuscleTech Whey Protein Powder (Vanilla Cream, 4LB) - 30g Protein | Nitro-Tech Ripped Whey Isolate & Peptides Smoothie Mix for Lean Muscle for Women & Men
$16.38 / lb
$65.51 total · 1 size
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