In this piece · 5 sections
Two words for one relationship
Real-estate investors talk in cap rates. Website buyers talk in multiples. They sound like different worlds, but they are describing the exact same relationship from opposite ends. A cap rate is annual income divided by price. A multiple is price divided by annual income. They are reciprocals — flip one and you get the other.
We write this from Real Site Worth's chair, a digital-property valuation tool. I am not a financial advisor. The reason this matters is practical: most people already have an intuition for one of these two numbers, and the reciprocal lets you borrow that intuition for the other — so a website estimate reads against a mental model you already trust.
The reciprocal, plainly

Here is the only equation you need: cap rate = 1 ÷ multiple, and multiple = 1 ÷ cap rate. That's it. An 8% cap rate is 1 ÷ 0.08 = 12.5x. A 4x website multiple is 1 ÷ 4 = 0.25, or a 25% cap rate. The two numbers are locked together; you can never change one without changing the other.
Read down the table and the pattern is clear: low cap rates mean high multiples and vice versa. A 4% cap-rate building and a 25x asset are the same thing said two ways. A 4x website and a 25% cap rate are too. This is the same reciprocal that turns any multiple into an earnings yield, which we covered in how multiples compare across asset classes.
A worked example (clearly hypothetical)
Let's run one with invented numbers so nothing is mistaken for a market quote. Suppose a content site nets $1,000 a month — $12,000 a year. Suppose, hypothetically, it would change hands at a 4x multiple. That implies a price near $48,000. Flip it: $12,000 ÷ $48,000 = 25%. The same site 'has a 25% cap rate.' Both descriptions are identical.
Now compare it to a building. If a rental, hypothetically, trades at a 6% cap rate, that's a 16.7x multiple — far higher than the website's 4x. Why? The building is more liquid, more durable, more financeable, and far less concentrated than a one-niche site. The website's higher cap rate is the market pricing that extra risk, the same point we make in websites vs rental property.
Where the analogy quietly breaks

The reciprocal math is airtight, but the inputs are not interchangeable. A rental's net operating income is relatively stable and well-understood; a website's earnings can be lumpy, platform-dependent, and tied to the current owner's labor. So even when the arithmetic lines up, the quality of the income underneath the two numbers can be very different.
This is why a higher cap rate on a website does not automatically mean it's cheaper than a building. The denominator differs and the risk differs. A conservative engine prices that into the band's width — see SDE vs EBITDA for the earnings-base fork.
Why this makes a website estimate easier to trust
The payoff is confidence. When Real Site Worth returns a range, you can flip the implied multiple into a cap rate and ask: would I accept that yield on a property this risky? If the implied cap rate is wildly high, the income is probably fragile or the inputs are off. If it's suspiciously low, the price is rich. The reciprocal turns the estimate into something you can interrogate.
That interrogation is the point of shipping a range with a confidence score instead of a single number. You don't have to take our band on faith — you can translate it into the language you already think in. We cover how to read that band in reading the band.

