Cost Per Serving Calculator
Compare the true value of supplements by calculating cost per serving and cost per effective dose. The cheapest bottle isn't always the best value — this tool helps you find the best bang for your buck.
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Popular Supplement Price Comparisons
We've pre-calculated cost-per-serving for popular supplements across major brands. Prices are approximate and based on standard retail pricing (not sale prices). Updated regularly.
Vitamin D3 (5,000 IU)
| Rank | Brand | Price | Servings | Cost/Serving |
|---|---|---|---|---|
| #1 | Nutricost | $8.95 | 240 | $0.037 |
| #2 | NOW Foods | $10.99 | 240 | $0.046 |
| #3 | Nature Made | $12.99 | 180 | $0.072 |
| #4 | Life Extension | $11.25 | 60 | $0.188 |
| #5 | Thorne | $22.00 | 60 | $0.367 |
Magnesium Glycinate (200mg)
| Rank | Brand | Price | Servings | Cost/Serving |
|---|---|---|---|---|
| #1 | Doctor's Best | $14.99 | 120 | $0.125 |
| #2 | NOW Foods | $17.99 | 120 | $0.150 |
| #3 | Nutricost | $19.95 | 120 | $0.166 |
| #4 | Pure Encapsulations | $35.60 | 90 | $0.396 |
| #5 | Thorne | $28.00 | 60 | $0.467 |
Fish Oil (1,000mg EPA+DHA)
| Rank | Brand | Price | Servings | Cost/Serving |
|---|---|---|---|---|
| #1 | Nutricost | $24.95 | 120 | $0.208 |
| #2 | NOW Foods Ultra Omega-3 | $22.99 | 90 | $0.256 |
| #3 | Sports Research | $24.95 | 60 | $0.416 |
| #4 | Thorne Super EPA | $42.00 | 90 | $0.467 |
| #5 | Nordic Naturals Ultimate | $37.46 | 60 | $0.624 |
Creatine Monohydrate (5g)
| Rank | Brand | Price | Servings | Cost/Serving |
|---|---|---|---|---|
| #1 | Nutricost | $14.95 | 200 | $0.075 |
| #2 | BulkSupplements | $15.96 | 200 | $0.080 |
| #3 | NOW Foods | $19.99 | 200 | $0.100 |
| #4 | Optimum Nutrition | $17.99 | 60 | $0.300 |
| #5 | Thorne | $32.00 | 90 | $0.356 |
Tips for Getting the Best Value
Check the Dose Per Serving
A cheaper bottle with lower doses per serving may actually cost more per effective dose. Always compare the active ingredient amount, not just the price tag.
Consider Bioavailability
A more expensive but better-absorbed form may deliver more value. For example, magnesium glycinate at $0.15/serving may be better value than oxide at $0.05/serving since oxide has only 4% absorption.
Buy in Bulk
Larger bottles almost always have a lower cost per serving. If you know you'll use a supplement long-term, buy the largest size available.
Subscribe & Save
Many brands offer 10-15% discounts for subscription orders. If you take a supplement daily, subscriptions can save $50-100+ per year.
Note: Prices shown are approximate retail prices and may vary. We are not affiliated with any supplement brand. Cost per serving is one factor in choosing supplements — also consider quality, testing, bioavailability, and your specific health needs.