What Could This Property Really Earn You?

Every listing has an asking price, but not every one comes with a clear rental figure attached — and that's often the number that matters most if you're buying as an investment. This calculator lets you work out the real yield on any property yourself, whether or not a rental estimate is listed, before you ever get to the point of making an offer.

Put in a purchase price and expected rent, and it'll break down your gross yield and your net yield side by side — the honest number, not the marketing one. If you're financing part of the purchase, there's an optional section for that too, showing your monthly payment and your actual cash-on-cash return once the mortgage is factored in.

I'd treat this as a starting point rather than the final word. A building with a well-run juristic office, a good location for tenants, and honest comparable rents will perform differently to one that only looks good on paper — and that's exactly the kind of thing I can tell you about a specific property that a calculator can't.