Rental Property Calculator

See cash flow, cap rate and cash-on-cash return right on Zillow and Redfin listings.

What it does: when you open a home listing on Zillow or Redfin, a small panel appears in the bottom-right corner showing: monthly cash flow (green if positive, red if negative) cash-on-cash return: your yearly profit divided by the cash you put in cap rate: the property’s yearly profit before loan payments, as a percentage of the price monthly mortgage, monthly expenses and the cash needed up front It tries to read the price, rent estimate and HOA fee from the listing, and you can edit every number. Your assumptions, like interest rate and down payment, are saved and sync across your Chrome browsers.