Market Share Calculator
What is my market share in a category?
Your numbers
Result
Market share
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How this is calculated
Estimate your market share based on sales velocity, reviews, and category size. Track growth and identify opportunities.
- Market share = your sales / total market sales x 100%
- Projected sales = current sales x (1 + growth rate)
What to make of the number
Top 3 sellers in most Amazon categories hold 40%+ combined market share.
Frequently asked questions
How do I estimate total market size?
Use Jungle Scout, Helium 10, or estimate from top seller reviews velocity.