π P/S Ratio Calculator
What you pay for each dollar of revenue.
Market cap divided by annual revenue
Estimates for planning only, not financial advice.
The price-to-sales ratio divides market capitalization by annual revenue: what you pay for each dollar of sales. It is the fallback multiple when earnings do not exist yet, which is why growth investors live on it. A P/S of 2.5 means paying $2.50 per $1 of yearly revenue. Revenue is harder to fake than earnings, which is the ratio's quiet strength.
How to Use This Calculator
Enter market capitalization and trailing twelve-month revenue, in the same units. The calculator returns the multiple. Use it to compare companies at similar stages; a profitable giant and a pre-profit startup deserve different P/S lenses.
Enter market cap and annual revenue. Keep the units matched: millions with millions.
Read the P/S. Then check whether the revenue is actually growing and converting toward profit.
Cross-check with profitability. Our net profit margin calculator shows what those sales keep.
The P/S Formula
Sales are the top line: real, hard to manipulate, and available even when earnings are negative. The trade-off is that P/S ignores margins entirely. Two companies at 2.5 times sales can be worlds apart if one keeps 30 cents per dollar and the other loses 20 cents. P/S is a starting screen, never a conclusion.
Worked Example
A cloud company carries a $2 billion market cap on $800 million of annual revenue. The P/S is 2.5. Revenue grows 35 percent a year with gross margins near 75 percent, so the multiple prices in a path to strong profitability. A competitor at 1.2 times sales growing 8 percent with 40 percent gross margins is cheaper on P/S but offers a very different business.
Reading Your Result
Under 1.0 often screens as cheap, 1 to 3 as normal for growers, above 10 as priced for perfection. But the right P/S is really a bet on future margins: a 10x sales multiple is fine if margins eventually hit 40 percent and terrible if they stall at 10. Always pair P/S with a view on where margins are heading.
My rule: P/S without a margin thesis is just storytelling. Before paying up, write down the revenue growth and eventual net margin the price requires, then ask if any comparable company ever achieved both. If the answer is no, the multiple is pricing in a miracle. For young companies, our pre and post money valuation calculator frames the same question at the startup stage.
Estimates for planning only, not financial advice.
Frequently Asked Questions
What is the price-to-sales ratio?
The P/S ratio is market capitalization divided by annual revenue. It measures how much investors pay for each dollar of sales. It is the standard valuation multiple for companies without earnings, since revenue exists even when profit does not. It is also the only multiple that works for pre-revenue startups, where even revenue forecasts are heroic.
How do you calculate P/S?
Divide market cap by trailing twelve-month revenue, or share price by revenue per share. A $2 billion market cap on $800 million of revenue is a P/S of 2.5. Revenue per share is the cleaner per-share version when share counts keep shifting.
What is a good P/S ratio?
Below 1.0 often looks cheap, 1 to 3 is typical for growing companies, and above 10 demands exceptional future profitability. The right level depends on growth and eventual margins: high-growth, high-margin businesses justify higher multiples. SaaS companies routinely trade above 5x sales while grocers sit below 1x: margin expectations explain the gap.
Why use P/S instead of P/E?
Because P/E breaks when earnings are negative or tiny, which is common for young growth companies. Revenue is also harder to manipulate with accounting choices than earnings. P/S keeps the comparison possible where P/E cannot go. Channel stuffing inflates revenue temporarily, so pair P/S with cash collection trends.
What are the flaws of the P/S ratio?
It ignores profitability completely. A company can grow revenue forever while losing money on every sale. P/S also ignores debt differences between companies. Always check margins, cash flow, and the balance sheet alongside it. A P/S of 2 with 5 percent margins is far more expensive than a P/S of 5 with 40 percent margins.
Does P/S work for comparing different industries?
Poorly. A grocer at 0.5 times sales and a software firm at 8 times sales can both be fairly priced because their margins differ enormously. Keep comparisons within the same industry and business model. Cross-industry P/S screens mostly rediscover that software has better margins than retail.
How does revenue growth affect fair P/S?
Enormously. A company growing 40 percent a year deserves a far higher multiple of current sales than one growing 5 percent, because its future sales base will be much larger. Compare P/S to growth with a PEG-style lens: P/S divided by growth rate.
Can P/S be gamed by acquisitions?
Yes. Buying revenue through acquisitions inflates the denominator without improving the business. Check organic growth separately from acquired growth, and watch whether the acquisitions were funded with expensive debt or dilutive share issues. Roll-up strategies live on this trick: acquired revenue at low multiples, re-rated at the parent's high P/S.
What is enterprise value to sales?
EV/Sales divides enterprise value (market cap plus net debt) by revenue. It is better than P/S when companies carry different debt loads, since debt holders also claim the revenue stream. For levered companies, prefer EV/Sales. EV/Sales above 10x demands a credible path to software-like margins, or it is just hope.
Should P/S use trailing or forward revenue?
Trailing revenue is fact; forward revenue reflects expectations already in the price. For fast growers, forward P/S often looks far more reasonable. As with P/E, say which you are using and be consistent across comparisons. Forward P/S divides today's price by tomorrow's hoped-for revenue: useful, but label the hope.