My sales as % of total market. The Market Share Calculator takes your sales, total market sales and returns market share plus sales gained per extra point of share. Results update as you type, and the formula is shown under the result so you can repeat it in your own spreadsheet.
Good business decisions come from putting numbers on the options before committing. Run the calculation with your best estimate, then again with a pessimistic one, and see whether the decision survives both. Use the worked example below to check the maths against your own figures.
How the Market Share Calculator works
Track share alongside revenue: growing sales in a market growing faster means you are losing ground.
Worked example
With the example values (your sales of $2,000,000, total market sales of $50,000,000), the market share is 4%; sales gained per extra point of share $500,000.00. Change any figure above and the result updates immediately; use Copy results to paste the summary into a note or email.
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Frequently Asked Questions
How is market share calculated?
market share = your sales ÷ total market sales.
Which figures do I need?
Your sales, total market sales. Take them from the same period and the same set of accounts or reports so the ratio is consistent, and check the example values as a guide to the units expected.
How reliable is the result?
As reliable as the estimates you enter. Run the calculation with optimistic and pessimistic inputs to see the range of outcomes before deciding.






