✦ Free Real Estate Investment Tool

Analyze Any Rental Property
in Seconds

Calculate cash flow, cap rate, cash-on-cash return, and ROI instantly. The smarter way to evaluate US investment properties.

100%Free to Use
10+Key Metrics
InstantResults

Rental Property Calculator

Run the Numbers

Enter your property details below to see a full investment analysis

Your Contact Information

Your details are pre-filled from your account. Keep them up to date so we can reach you about matching deals.

Purchase Details

$
%
%
yrs
%

Rental Income

$
%
$

Annual Expenses

$
$
$
$
%
$
$
I'm open to being contacted by an investor-friendly agent.
Allow KeyDeals to share my contact info with vetted real estate agents in my target market who can help me find deals that match these numbers. Learn more →

📊 Investment Analysis

Monthly Cash Flow
—
Cash-on-Cash
—
Cap Rate
—
Annual Cash Flow
—
Gross Rent Mult.
—

Monthly Breakdown

Gross Rent—
Vacancy Loss—
Effective Gross Income—
Mortgage Payment—
Property Tax—
Insurance—
HOA—
Maintenance + CapEx—
Property Mgmt—
Utilities / Other—

Investment Summary

Purchase Price—
Down Payment—
Closing Costs—
Total Cash Invested—
Loan Amount—

Why KeyDeals

Everything a Rental Investor Needs

Go beyond surface-level math. Our calculator covers every metric serious real estate investors rely on.

📈

Cash-on-Cash Return

See your actual annual return based on your real cash invested — not just gross yield. The #1 metric for comparing rental deals.

🏦

Mortgage & PITI Analysis

Instantly compute your mortgage payment and factor in taxes, insurance and HOA to model true monthly obligations.

📉

Vacancy & Management

Don't overestimate income. Model vacancy rates and property management fees to get a realistic picture of net income.

🏘️

Cap Rate Calculator

Instantly calculate the capitalization rate to compare properties independent of financing — the go-to metric for income property valuation.

🔧

CapEx & Maintenance

Smart investors budget for repairs and capital expenditures. Factor these in to avoid nasty surprises in year two.

🔗

Investor-Friendly Agents

Ready to buy? Connect with experienced real estate agents who specialize in working with investors across the US.

How It Works

Three Steps to Smarter Investing

From analysis to action in minutes

01

Enter Property Details

Input the purchase price, financing terms, expected rent, and expenses for any US rental property.

02

Review Your Analysis

Instantly see cash flow, cap rate, cash-on-cash return, and a full monthly breakdown — updated in real time.

03

Connect with an Expert

Found a deal worth pursuing? Connect with an investor-friendly real estate agent to help you close with confidence.

Ready to Find Your Next Deal?

Our network of investor-friendly real estate agents across the US can help you find, analyze, and close on your next rental property — faster.

Find an Investor-Friendly Agent →

FAQ

Common Questions

Everything you need to know about evaluating rental properties

What is cash-on-cash return for rental property?
+
Cash-on-cash return measures your annual pre-tax cash flow divided by the total cash you invested (down payment + closing costs). It's the most important metric for rental investors because it shows your actual return on money out of pocket — regardless of financing. A strong rental property typically yields 6–12% cash-on-cash return.
What is cap rate and how is it calculated?
+
Cap rate (capitalization rate) is your Net Operating Income (NOI) divided by the property value or purchase price, expressed as a percentage. It lets you compare properties independently of financing. A cap rate of 5–8% is typical for residential rental properties in the US, though it varies widely by market.
What is a good cash flow for a rental property?
+
Most experienced investors target at least $100–$200 per month per unit in net cash flow after all expenses. The "1% Rule" — monthly rent should be at least 1% of the purchase price — is a quick screen, but a full analysis using all expenses gives you a far more accurate picture of actual returns.
What expenses should I include in rental property analysis?
+
Beyond the mortgage, don't forget property taxes, insurance, HOA fees, vacancy allowance (typically 5–10%), property management (8–12% of rent), routine maintenance, capital expenditure reserves for major repairs (roof, HVAC, etc.), and any utilities you pay. Skipping these is the #1 mistake new investors make.
What is an investor-friendly real estate agent?
+
An investor-friendly agent understands investment metrics like cap rate, cash flow, and ARV. They can help you find off-market deals, assess rental potential, identify value-add opportunities, and have a network of lenders and contractors who work with investors. Working with the wrong agent is one of the most costly mistakes a real estate investor can make.
Is this rental property calculator free to use?
+
Yes — our rental property calculator is completely free with no sign-up required. KeyDeals is committed to giving real estate investors the tools they need to make smarter investment decisions. Use it as many times as you like to analyze any US rental property.