Cheapest right now: $0.083 per gram — Webber Naturals Calcium Supplement with Vitamin D, 275 Tablets | Helps Support Bones and T…. $0.30 median of 4 in-stock listings. Updated Aug 26, 2026.
| $/g calcium ▲ | Dose | Price | Size | Form | Type | Rating | Name |
|---|---|---|---|---|---|---|---|
| $0.083 | 500 mg | $11.47 | 275 tabs · 275 srv | Tablets | Carbonate | 4.7 (903) | Webber Naturals Calcium Supplement with Vitamin D, 275 Tablets | Helps Support Bones and Teeth, Calcium Carbonate |
| $0.30 | 500 mg | $18.99 | 125 tabs · 125 srv | Tablets | Carbonate | 4.8 (7) | Calcium Carbonate Tablets 500 mg – Bone & Teeth Health Supplement – 125 Tablets – Supports Bone Strength & Daily Intake |
| ~$2,273.28 | ~63 µg | $17.76 | 250 tabs · 125 srv | Tablets | Carbonate | 4.7 (10) | Webber Naturals Calcium Carbonate, 250 Tablets, Helps Support Bones and Teeth & Vitamin D3 2500 IU Extra Strength, 180 Softgels, For Healthy Bones, Teeth, and Helps Prevent Vitamin D Deficiency2 ingredientsCalcium Carbonate—Vitamin D3— |
| — | ~500 mg | $14.05 | 340 g | Powder | Carbonate | 4.5 (353) | NOW Supplements, Calcium Carbonate Powder, High Percentage of Calcium, Supports Bone Health, 340g |