Terms of Use

Last updated: February 2026

What This Site Is

StackCostCalc is a free tool that helps you compare supplement prices. We gather pricing data from public sources (brand websites, Amazon, major retailers) and calculate cost-per-serving and cost-per-gram metrics.

That's it. We're a calculator, not a store.

Not Medical Advice

Important: Nothing on this site is medical advice. We're not doctors, nutritionists, or healthcare professionals. We're just showing you math.

Before starting any supplement regimen, talk to your doctor—especially if you have health conditions, take medications, or are pregnant/nursing.

The fact that a supplement is cheap doesn't mean you should take it. The fact that it's expensive doesn't mean it works.

Pricing Accuracy

We try to keep prices current, but:

  • Prices change frequently
  • Sales and promotions come and go
  • Different retailers have different prices
  • Prices vary by location

Always verify the current price on the retailer's website before purchasing. We're not responsible for price differences between what we show and what you pay.

Third-Party Products

We don't sell supplements. When you click a link to a product, you're leaving StackCostCalc and going to another website. Your purchase is between you and that retailer.

We may receive affiliate commissions from some links. This doesn't affect our rankings or comparisons—we show what the math says, regardless of whether we earn from it.

Disclaimer of Warranties

This site is provided "as is" without warranties of any kind. We don't guarantee:

  • That prices are accurate or current
  • That the site will be available 24/7
  • That calculations are error-free
  • That any supplement will work for you

Limitation of Liability

StackCostCalc is not liable for any damages arising from your use of this site, including but not limited to:

  • Purchasing decisions based on our data
  • Health effects from supplements
  • Price differences at checkout
  • Errors in our calculations

Your Use of This Site

By using StackCostCalc, you agree to:

  • Use the site for personal, non-commercial purposes
  • Not scrape or copy our data without permission
  • Not attempt to interfere with the site's operation
  • Accept that you're responsible for your own purchasing decisions

Changes to Terms

We may update these terms. Continued use of the site means you accept any changes.

Contact

Questions? Email hello@stackcostcalc.com.