CREATINE
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How to Calculate Supplement Cost Per Serving
The two formulas SuppScout uses, with worked examples for creatine, magnesium and omega-3.
The short answer
Price ÷ servings = price per serving. Then, to compare products fairly, price per serving ÷ amount per serving × standard amount = cost per standardized amount — for example cost per 5 g creatine. SuppScout shows both numbers and the formula on every product.
Key takeaways
- Price per serving = price ÷ servings per container.
- Cost per standard amount normalizes different serving sizes.
- Use the Supplement Facts amount, not the front-of-bottle number.
The two formulas
Price per serving = price ÷ servings per container
Cost per standardized amount = (price per serving ÷ amount per serving) × standard amount
Worked example: creatine
A $29.99 tub with 60 servings of 5 g creatine:
- Price per serving: $29.99 ÷ 60 = $0.50
- Cost per 5 g: ($0.50 ÷ 5 g) × 5 g = $0.50
A $29.99 bottle of gummies with 30 servings of 3 g:
- Price per serving: $29.99 ÷ 30 = $1.00
- Cost per 5 g: ($1.00 ÷ 3 g) × 5 g = $1.67
Worked example: magnesium
A $24.99 bottle, 60 servings, 200 mg elemental magnesium per serving:
- Price per serving: $24.99 ÷ 60 = $0.42
- Cost per 100 mg: ($0.42 ÷ 200 mg) × 100 mg = $0.21
Worked example: omega-3
Use EPA + DHA, not total fish oil. A $22.99 bottle, 60 servings, 360 mg EPA + 240 mg DHA per serving (600 mg total):
- Price per serving: $0.38
- Cost per 1,000 mg EPA + DHA: ($0.38 ÷ 600) × 1,000 = $0.64
Standard amounts SuppScout uses
- Magnesium: per 100 mg elemental magnesium
- Creatine: per 5 g creatine (as labeled)
- Omega-3: per 1,000 mg EPA + DHA
- Vitamin D: per 1,000 IU (25 mcg)
Sources & references
- Dietary Supplement Labeling Guide. U.S. Food and Drug Administration. fda.govRegulatory
SuppScout links to primary and authoritative sources wherever possible. See our editorial policy for how sources are selected and how corrections are handled.