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Cheapest Vitamin D (D3 Cholecalciferol) on iHerb

Ranked by real cost per 1,000 mcg of Vitamin D (D3 Cholecalciferol) — cheapest value first.

Prices updated Jul 25, 2026 · 25 products · Prices in USD

The priciest option here costs about 13.8× more per 1,000 mcg of Vitamin D (D3 Cholecalciferol) than the best-value pick California Gold Nutrition. For the same daily dose, choosing by cost per unit instead of sticker price can meaningfully cut your yearly spend.
#ProductDoseServingsPrice (USD)Cost per 1,000 mcg
1
California Gold Nutrition, SimplyOne®, Vitamin D3, 1,250 mcg (50,000 IU), 50 Softgels
California Gold Nutrition, SimplyOne®, Vitamin D3, 1,250 mcg (50,000 IU), 50 Softgels
California Gold Nutrition
1,250 mcg505.570.089View on iHerb →
2
Micro Ingredients, Vitamin D3 , 5,000 IU, 500 Softgels
Micro Ingredients, Vitamin D3 , 5,000 IU, 500 Softgels
Micro Ingredients
125 mcg50016.990.272View on iHerb →
3
Nature's Truth, Vitamin D3, High Potency , 250 mcg (10,000 IU), 100 Quick Release Softgels
Nature's Truth, Vitamin D3, High Potency , 250 mcg (10,000 IU), 100 Quick Release Softgels
Nature's Truth
250 mcg10010.240.410View on iHerb →
4
NOW Foods, Liquid Vitamin D-3, 1,000 IU, 1 fl oz (30 ml)
NOW Foods, Liquid Vitamin D-3, 1,000 IU, 1 fl oz (30 ml)
NOW Foods
25 mcg7508.600.459View on iHerb →
5
Bluebonnet Nutrition, Liquid Vitamin D3 Drops, Citrus, 50 mcg (2,000 IU), 1 fl oz (30 ml)
Bluebonnet Nutrition, Liquid Vitamin D3 Drops, Citrus, 50 mcg (2,000 IU), 1 fl oz (30 ml)
Bluebonnet Nutrition
50 mcg90020.760.461View on iHerb →
6
Nature's Truth, High Potency Vitamin D3, 125 mcg (5000 IU), 300 Quick Release Softgels
Nature's Truth, High Potency Vitamin D3, 125 mcg (5000 IU), 300 Quick Release Softgels
Nature's Truth
125 mcg30017.470.466View on iHerb →
7
Micro Ingredients, Vitamin D3 & K2, 300 Softgels
Micro Ingredients, Vitamin D3 & K2, 300 Softgels
Micro Ingredients
250 mcg30034.950.466View on iHerb →
8
Nature's Truth, Vitamins, Liquid D3, 125 mcg (5,000 IU), 2 fl oz (59 ml)
Nature's Truth, Vitamins, Liquid D3, 125 mcg (5,000 IU), 2 fl oz (59 ml)
Nature's Truth
125 mcg1187.160.485View on iHerb →
9
California Gold Nutrition, Vitamin D3, 125 mcg (5,000 IU), 90 Fish Gelatin Softgels
California Gold Nutrition, Vitamin D3, 125 mcg (5,000 IU), 90 Fish Gelatin Softgels
California Gold Nutrition
125 mcg905.520.491View on iHerb →
10
Sports Research, Vitamin D3, Max Strength, 250 mcg (10,000 IU), 120 Softgels
Sports Research, Vitamin D3, Max Strength, 250 mcg (10,000 IU), 120 Softgels
Sports Research
250 mcg12015.970.532View on iHerb →
11
Sports Research, Vitamin D3, 100 mcg (4,000 IU), 360 Softgels
Sports Research, Vitamin D3, 100 mcg (4,000 IU), 360 Softgels
Sports Research
100 mcg36019.970.555View on iHerb →
12
Super Nutrition, Simply One®, Men's 50+ Multivitamin with Super Adaptogens, B12, Greens, Spices & Antioxidants, 90 Tablets
Super Nutrition, Simply One®, Men's 50+ Multivitamin with Super Adaptogens, B12, Greens, Spices & Antioxidants, 90 Tablets
Super Nutrition
40 mcg902.000.556View on iHerb →
13
Micro Ingredients, Vitamin D3, 2,000 IU, 500 Softgels
Micro Ingredients, Vitamin D3, 2,000 IU, 500 Softgels
Micro Ingredients
50 mcg50014.990.600View on iHerb →
14
California Gold Nutrition, Vitamin D3, 50 mcg (2,000 IU), 360 Fish Gelatin Softgels
California Gold Nutrition, Vitamin D3, 50 mcg (2,000 IU), 360 Fish Gelatin Softgels
California Gold Nutrition
50 mcg36012.030.668View on iHerb →
15
California Gold Nutrition, Vitamin D3 + K2 as MK-7, 180 Veggie Capsules
California Gold Nutrition, Vitamin D3 + K2 as MK-7, 180 Veggie Capsules
California Gold Nutrition
125 mcg18016.200.720View on iHerb →
16
Sundance Vitamins, High Potency D3, 125 mcg (5,000 IU), 60 Quick Release Softgels
Sundance Vitamins, High Potency D3, 125 mcg (5,000 IU), 60 Quick Release Softgels
Sundance Vitamins
125 mcg606.020.803View on iHerb →
17
Olympian Labs, Green Calcium with Vitamin K2/D3, 100 Tablets
Olympian Labs, Green Calcium with Vitamin K2/D3, 100 Tablets
Olympian Labs
400 IU5016.490.825View on iHerb →
18
Carlson, Solar D Gems® , Vitamin D3 + Omega-3s, Natural Lemon, 360 Soft Gels
Carlson, Solar D Gems® , Vitamin D3 + Omega-3s, Natural Lemon, 360 Soft Gels
Carlson
150 mcg36052.020.963View on iHerb →
19
California Gold Nutrition, Vitamin D3, 50 mcg (2,000 IU), 90 Fish Gelatin Softgels
California Gold Nutrition, Vitamin D3, 50 mcg (2,000 IU), 90 Fish Gelatin Softgels
California Gold Nutrition
50 mcg904.831.07View on iHerb →
20
Sundance Vitamins, High Potency D3, 50 mcg (2,000 IU), 200 Quick Release Softgels
Sundance Vitamins, High Potency D3, 50 mcg (2,000 IU), 200 Quick Release Softgels
Sundance Vitamins
50 mcg20011.131.11View on iHerb →
21
Carlson, Solar D Gems® , Vitamin D3 + Omega-3s, Natural Lemon, 120 Soft Gels
Carlson, Solar D Gems® , Vitamin D3 + Omega-3s, Natural Lemon, 120 Soft Gels
Carlson
150 mcg12020.321.13View on iHerb →
22
Top Secret Nutrition, Health, Hair Skin + Nails, 60 Tablets
Top Secret Nutrition, Health, Hair Skin + Nails, 60 Tablets
Top Secret Nutrition
200 IU6014.291.19View on iHerb →
23
Nature's Truth, Vitamin D3, High Potency, 50 mcg (2,000 IU), 300 Quick Release Softgels
Nature's Truth, Vitamin D3, High Potency, 50 mcg (2,000 IU), 300 Quick Release Softgels
Nature's Truth
50 mcg30018.131.21View on iHerb →
24
Super Nutrition, Simply One®, 50+ Women Multivitamin + Supporting Herbs, Mixed Berry , 90 Chewable Tablets
Super Nutrition, Simply One®, 50+ Women Multivitamin + Supporting Herbs, Mixed Berry , 90 Chewable Tablets
Super Nutrition
60 mcg906.531.21View on iHerb →
25
California Gold Nutrition, Vitamin D3 + K2 as MK-7, 60 Veggie Capsules
California Gold Nutrition, Vitamin D3 + K2 as MK-7, 60 Veggie Capsules
California Gold Nutrition
125 mcg609.221.23View on iHerb →

How we rank Vitamin D (D3 Cholecalciferol)

Two supplements can list the same dose per serving yet cost very differently once you account for how many servings are in the bottle. We calculate the total nutrient in each container (dose per serving × servings per container), divide the current price by that total, and rank by the resulting cost per unit. Lower is better. Because prices are refreshed automatically, this ranking reflects today's iHerb pricing rather than a snapshot from months ago.

Cost per unit is a starting point, not the whole story — the ideal form, third-party testing, and other ingredients matter too. Always check the label and consult a healthcare professional before starting a supplement.

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Prices update automatically and may differ from iHerb at checkout. Rankings are based on cost per unit of the listed nutrient and are for informational purposes only — not medical advice. Links to iHerb are affiliate links.