RentCalc

Free rental calculators that run 100% in your browser — cash flow, cap rate, cash-on-cash and more.

Runs in your browser — your rent, mortgage, and returns stay on this page

All calculators

Free rental cash flow calculator — enter rent, vacancy, expenses and mortgage to see monthly and annual net income.

Free cap rate calculator — convert purchase price, rent and expenses into a quick cap-rate percentage.

Cash-on-cash return calculator — down payment, closing costs, rent and mortgage in one free tool.

Rental income calculator — total annual gross rent across units after vacancy, in one free tool.

Gross rent multiplier calculator — price divided by monthly rent shows how many months of rent you pay.

Airbnb rental calculator — estimate monthly net from nightly rate, occupancy, costs and mortgage.

House hacking calculator — see your net housing cost when rented units cover part of the mortgage.

BRRRR calculator — estimate built equity and monthly cash flow after the refinance step.

Rent vs mortgage calculator — compare your monthly rent to a mortgage payment side by side.