Terms of Use

Last updated: September 2026

These terms cover your use of sellarithm.com and its calculators, guides and other content (together, "Sellarithm" or "the site"). By using the site, you agree to these terms. If you don't agree with them, please don't use the site.

What Sellarithm is

Sellarithm provides free, informational calculators and guides related to online selling — currently focused on Etsy, with other marketplaces planned. The site is provided for general informational and educational purposes.

Estimates, not guarantees

Every number a Sellarithm calculator produces is an estimate based on the inputs you provide and the fee assumptions built into that calculator, which are described on each calculator's page. Actual marketplace fees, deposits, taxes, currency conversion, and account-specific terms can differ from what a calculator shows. Sellarithm is not connected to your seller account on any marketplace and has no visibility into your actual account terms. See the Disclaimer for more on this.

Your responsibility

You're responsible for how you use the information and estimates Sellarithm provides. Before making pricing, financial or business decisions, verify the relevant numbers — especially current marketplace fees — directly with the platform in question, and consult a qualified professional (accountant, tax advisor, etc.) where appropriate. Sellarithm's calculators are a starting point, not a substitute for that kind of verification.

Acceptable use

Please don't misuse the site — for example, by attempting to disrupt its normal operation, scraping it at a scale that degrades service for others, or using it to build a competing product by copying its content or code without permission.

Intellectual property

The Sellarithm name, logo, and the text, design and code of this site are owned by Sellarithm unless otherwise noted. You're welcome to link to Sellarithm's pages. Trademarks belonging to marketplaces referenced on this site (such as Etsy) belong to their respective owners and are used only to describe or refer to those platforms — see the Disclaimer.

External links

Sellarithm links to external sites, including official marketplace pages, for reference. Sellarithm doesn't control and isn't responsible for the content, accuracy, or availability of external sites.

No warranty, limitation of liability

Sellarithm is provided "as is," without warranties of any kind, express or implied, including as to accuracy, reliability, or fitness for a particular purpose. To the fullest extent permitted by law, Sellarithm isn't liable for any loss or damage arising from your use of, or inability to use, the site or its calculators, including decisions made based on calculator output.

Changes to the service or these terms

Sellarithm may add, change, or remove calculators, guides, or other content over time, and may update these terms as the site evolves. The "last updated" date at the top of this page reflects the most recent revision. Continuing to use the site after an update means you accept the current terms.

Questions

If anything here is unclear, get in touch.

Related pages

Read the Privacy Policy and Disclaimer.