Two supplements, same nutrient? Enter the price and servings for each and see which is actually cheaper — per serving, per day, per month. The bigger bottle usually wins on cost per dose, even when its sticker price is higher.
Enter price + servings.
Enter price + servings.
Divide the price by the number of servings in the container to get cost per serving, then multiply by how many servings you take a day for cost per day. A $12 bottle of 30 servings is $0.40 a serving; an $18 bottle of 120 is $0.15 — the pricier bottle is less than half the cost to actually use.
The sticker price hides how many doses you get. A cheaper bottle with fewer servings, or one you take twice a day, can cost more per day than a pricier, larger bottle. Cost per dose is the only number that reflects what you actually spend.
Whatever the Supplement Facts panel calls one serving — it may be one capsule or several. Use the servings-per-container figure from the label, and set servings-per-day to how many you actually take, so the comparison matches your real use.