Compare Protein Powder prices per ounce on Amazon

Cheapest protein powder per ounce today: Muscle Milk Genuine Protein Powder, Chocolate, 1.93 Pounds at $0.75 per ounce ($23.18 total), as of Nov 13, 6:00 PM UTC.

Best picks right now

  • Lowest price per ounce: Muscle Milk Genuine Protein Powder, Chocolate, 1.93 Pounds, $0.75 per ounce ($23.18 total)
  • Lowest total price: Orgain Organic Vegan 21g Protein Powder, Vanilla Bean, 1.02 lb, $1.22 per ounce ($19.98 total)
  • Biggest pack: Optimum Nutrition Gold Standard Whey Protein Powder, Vanilla Ice Cream, 5LB, $1.25 per ounce ($99.96 total)

Prices as of Nov 13, 5:32 PM UTC.

Protein Powder on Dealophant is ranked by real price per ounce, not sticker price.

Compare protein powder prices per ounce on Amazon. Optimum Nutrition, Dymatize, and more.

Find the Cheapest Protein Powder Per Ounce

What's the typical cost per ounce for protein powder?

Right now, the median price per ounce for protein powder is $1.32 across 21 listings Dealophant is tracking on Amazon. The cheapest is Muscle Milk Genuine Protein Powder, Chocolate, 1.93 Pounds, 13 Servings, 32g Protein, 2g Sugar, Calcium, Vitamins A, C & D, NSF Certified for Sport, Energizing Snack, Packaging May Vary at $0.75 per ounce ($23.18 total).

How Protein Powder pricing is compared on Dealophant

Listings are ranked by price per ounce. Pound-based listings are converted automatically (1 lb = 16 oz). Tubs labeled only by serving count are shown under "Other formats" because serving sizes aren't standardized across brands.

We calculate price per ounce across all container sizes and protein types.

Protein Powder prices right now

The middle half of the 21 protein powder listings Dealophant is tracking cost between $1.07 and $1.72 per ounce.

Pack size barely changes the price here: big and small listings both cost about $1.25 per ounce.

Top protein powder picks by price per ounce

  1. Muscle Milk Genuine Protein Powder, Chocolate, 1.93 Pounds, 13 Servings, 32g Protein, 2g Sugar, Calcium, Vitamins A, C & D, NSF Certified for Sport, Energizing Snack, Packaging May Vary Muscle Milk Genuine Protein Powder, Chocolate, 1.93 Pounds, 13 Servings, 32g Protein, 2g Sugar, Calcium, Vitamins A, C & D, NSF Certified for Sport, Energizing Snack, Packaging May Vary, $0.75 per oz ($23.18 total)
  2. Muscle Milk Genuine Protein Powder, Chocolate, 4.94 Pound, 32 Servings, 32g Protein, 2g Sugar, Calcium, Vitamins A, C & D, NSF Certified for Sport, Energizing Snack, Packaging May Vary Muscle Milk Genuine Protein Powder, Chocolate, 4.94 Pound, 32 Servings, 32g Protein, 2g Sugar, Calcium, Vitamins A, C & D, NSF Certified for Sport, Energizing Snack, Packaging May Vary, $0.77 per oz ($60.99 total)
  3. 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 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, $0.87 per oz ($27.97 total)
  4. Orgain Organic Vegan 21g Protein Powder, Vanilla Bean, 2.03 lb | Plant based protein, 4g prebiotic fiber, no added sugar or lactose, non-GMO, for shakes & smoothies Orgain Organic Vegan 21g Protein Powder, Vanilla Bean, 2.03 lb | Plant based protein, 4g prebiotic fiber, no added sugar or lactose, non-GMO, for shakes & smoothies, $0.98 per oz ($31.98 total)
  5. Body Fortress Super Advanced Whey Protein Powder, Cookies N Crème, 1.78 lbs | Flavor: Cookies N Creme, Immune Support, Muscle and Strength Development Body Fortress Super Advanced Whey Protein Powder, Cookies N Crème, 1.78 lbs | Flavor: Cookies N Creme, Immune Support, Muscle and Strength Development, $1.05 per oz ($29.98 total)

Prices as of Nov 13, 5:32 PM UTC.

The live ranking with filters is at https://dealophant.com/compare/protein-powder.

Search Protein Powder by price per unit

Buyer's tips for protein powder

  • 5 lb tubs are often cheaper per ounce than 1-2 lb containers of the same protein
  • Whey concentrate is significantly cheaper per ounce than isolate, with only marginally less protein per scoop
  • Unflavored protein powder is often the cheapest option and can be added to smoothies

Frequently asked questions about protein powder

What is the cheapest protein powder per ounce?
The cheapest protein powder per ounce on Amazon is usually whey concentrate from brands like Optimum Nutrition, Muscle Milk, or Body Fortress in a large tub. Premium isolates and plant-based powders cost more per ounce.
Is whey isolate worth the extra cost over concentrate?
Whey isolate has slightly more protein per scoop (90%+ vs 80%) and less lactose, and it costs more per ounce. For most people, concentrate is the better value. Isolate is worth it if you are lactose sensitive or need maximum protein per calorie.
How much protein powder does a gym-goer use per month?
Most gym-goers use 1-2 scoops per day, so a large tub lasts longer than a small one. Compare the price per ounce, because a bigger tub is not always the cheaper one.
What's the cheapest protein powder per ounce on Amazon right now?
Dealophant ranks every protein powder listing on Amazon by live price per ounce, recalculated from the Amazon Product Advertising API on each search. The cheapest in-stock listing appears at the top of https://dealophant.com/compare/protein-powder. Prices change frequently. Verify on Amazon before buying.
How does Dealophant calculate price per ounce for protein powder?
Total listing price is divided by the canonical ounce count extracted from the product title. protein powder is best compared by weight (price per ounce). Pack count and serving count are misleading because manufacturers vary scoop and bag sizes between products. 1 lb = 16 oz, so a "1.5 lb" listing is 24 oz. Cross-unit listings (for example a serving-count tub mixed in with weight-based tubs) are shown separately under "Other formats" so the price-per-ounce ranking stays apples-to-apples.
Is bulk protein powder actually cheaper per ounce?
Usually yes, but not always. Dealophant has seen single-pack protein powder undercut bulk on a per-ounce basis when the smaller size is on sale or has a Subscribe & Save discount the bulk listing doesn't. That's why Dealophant always recomputes per-ounce price live rather than assuming bigger = cheaper.
What's the typical price range per ounce for protein powder?
Across the 21 protein powder listings Dealophant tracked on Amazon in the last two weeks, the median price per ounce is $1.32 and the cheapest is $0.75. The live ranking is at https://dealophant.com/compare/protein-powder.

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Operated by CommQuest. All prices in USD from the US Amazon marketplace via the Product Advertising API; they may have changed by the time you click through, verify on Amazon before buying. As an Amazon Associate, Dealophant earns from qualifying purchases. Ranking is deterministic from price ÷ unit count and does not weight on commission. Built by Willhite Strategy Group.

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