Supplement Cost Calculator

Supplement prices are hard to compare when one brand sells single bottles and another sells 6-bottle bundles with shipping on top. Enter up to three products and this calculator shows the real cost per serving, per day, per month and per year.

Fill in at least one product. Use the total price you pay for the bundle and the shipping cost for that order.

Talk to a doctor first

Supplements can interact with medicines, including blood thinners and blood pressure medicine. Check with your doctor or pharmacist before starting any lung support supplement, especially if you have a lung condition. See our Medical Disclaimer.

How it works

For each product, the calculator adds the shipping cost to the bundle price, then divides by the total number of servings in the bundle (bottles × servings per bottle). That gives the cost per serving. It then multiplies by how many servings you take each day:

  • Per serving = (bundle price + shipping) ÷ (bottles × servings per bottle)
  • Per day = per serving × servings per day
  • Per 30 days = per day × 30
  • Per year = per day × 365

The product with the lowest cost per day is highlighted. The “bundle lasts” column shows how many days one order covers at your daily dose.

Tips for a fair comparison

  • Read the label for the serving size. Some products list 1 capsule per serving, others 2 or 3. A bottle of 60 capsules at 2 a day lasts 30 days, not 60.
  • Use the price you will actually pay, including shipping and taxes, not the “regular price” shown crossed out.
  • Multi-bottle bundles look cheaper per bottle but cost more upfront. Only buy a bundle if the refund terms are clear and you have checked the product suits you.
  • Watch for automatic subscriptions added at checkout.

Price is only one part of the picture. Our guide to spotting a lung supplement scam explains what else to check before you buy.

Frequently asked questions

Bottles hold different numbers of servings and products ask you to take different amounts. Cost per day puts every product on the same footing.

Yes. Shipping can add a lot to a single-bottle order, so including it gives a truer cost.

Not necessarily. Price doesn’t tell you about ingredient quality, doses, testing or safety. Use this calculator alongside the label and the refund policy.

No. All calculations run in your browser, and nothing you type is sent to us or stored.