Real Estate Calculator

Real estate is the asset most people first think of when they think 'investing,' and it earns in three ways at once: cash flow (the rent left after expenses and the mortgage), appreciation (the price drifting up over years), and principal paydown (your tenant slowly retiring your loan). Two numbers cut through the noise. The cap rate — net operating income divided by price — is the property's unleveraged yield, a clean way to compare buildings before any loan enters the picture. Cash-on-cash return — first-year cash flow divided by the cash you actually put in — is what your real money earns in spendable income, and it can be negative: a high rate or a low rent-to-price means you feed the property every month, betting on appreciation. But the idea that makes and breaks real-estate fortunes is leverage. A mortgage lets you put down a fraction of the price while capturing the appreciation and paydown on the whole property, so it multiplies the return on the cash you invested. When the property's total return (cap rate plus appreciation) clears the mortgage rate, that multiplication works in your favor and the leveraged return towers over what paying cash would earn. When the property falls — or simply can't out-earn the loan — the thin slice of equity you put down gets wiped first, and leverage magnifies the loss just as eagerly. The simulator races the same property bought with a mortgage against bought outright with cash, measured as a return on the cash invested, so you can see leverage tilt the outcome both ways. The durable lesson: real estate's outsized returns are mostly borrowed, and borrowed returns cut both ways.

Free and interactive — no sign-up, nothing to install. Read the full lesson for the plain-language explanation.