What is an online business worth?
Most small online businesses sell for a multiple of their yearly profit (seller's discretionary earnings). Put in the numbers and see the range.
How to read the number
The multiple is where all the judgement lives. A three-year-old SaaS with low churn, documented processes and an owner who works four hours a week deserves the top of its range. A site whose traffic depends on one Google update, or a store whose margin lives and dies with a single supplier, belongs at the bottom — or below it. The calculator gives a range, not a price: the price is whatever a real buyer pays after seeing the real books.
Two honest caveats. First, use profit the buyer can verify — bank statements and processor exports, not a spreadsheet. Second, businesses under roughly $1,000/month in profit often sell on assets and potential rather than any multiple at all.