What is market share?
Market share is the percentage of total sales in a market that one company holds. To find it, divide your sales by the total sales of the whole market over the same period, then multiply by 100.
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How to calculate market share
Divide your sales by the total sales of the market, then multiply by 100.
Percentages in this equation use numeric percent values: 40 means 40%.
Why market share matters
Market share shows how you perform against the market as a whole. If sales are growing but the market is growing faster, your share may be falling.
It can also show the size of your opportunity. A small share in a large market suggests room to grow.
Ways to measure it
You can measure share by revenue, units sold, or customers. Choose one, define the market clearly, and use the same method each time.
Total market figures usually come from industry reports, trade groups, or public company data. Estimates vary, so note the source.
Market share versus share of voice
Share of voice measures your presence in advertising or conversation, while market share measures your actual sales. Marketers watch both, since a stronger voice often comes before a larger share.
Disclaimer
This calculator is for informational purposes only, and we don't guarantee the accuracy of its results. You're responsible for verifying any results before relying on them. See our terms of use.
Common questions
How do you calculate market share?
Divide your sales by total market sales and multiply by 100. For example, $5 million of sales in a $50 million market is a 10% share.
What is a good market share?
It depends on how the market is defined and how crowded it is. Look at the trend and your position against direct competitors, not the number alone.
How do you increase market share?
You can win customers from competitors, enter new segments, improve retention, or grow the category itself. Which one fits depends on your strategy and resources.
Can market share fall while sales grow?
Yes. If the market grows faster than your sales, your share goes down even though revenue is up.
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