💬 Get in Touch
Contact Us
Have a question, found an error in our fee data, or want to suggest a new tool? We would love to hear from you.
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Tool Feedback
Found a bug or incorrect fee data in one of our calculators? Let us know and we will fix it immediately.
Report an Issue
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Suggest a Tool
Have an idea for a calculator we have not built yet? We are always adding new tools based on seller requests.
Suggest a Tool
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Partnerships
Interested in featuring SellerKalculator on your blog, YouTube channel or ecommerce community? Get in touch.
Partner With Us
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API Access
Want to integrate our calculation engine into your own tool or platform? Ask us about API access.
Ask About API
❓ Common Questions
How quickly do you respond?
We aim to respond to all messages within 24 hours on weekdays. Fee data error reports are usually fixed within a few hours.
Are the tools really free forever?
Yes. Every calculator on SellerKalculator is and will always be free to use. No account, no trial, no hidden fees.
How do you keep fee data updated?
We monitor all platform fee announcements and update our calculators whenever Amazon, eBay, Etsy or any other platform changes their rates.
Can I embed your tools on my site?
Yes — you can link to any of our tools freely. If you want to embed a calculator directly on your site please get in touch and we can discuss options.