Know if a rental cash flows before you make an offer
Run a full analysis in about 2 minutes: cash flow, cap rate, cash-on-cash, and 30-year projections, backed by real local market data. Built by a working landlord, not a spreadsheet.
First analysis includes every Pro feature. No credit card, no results paywall.
2847 Maple Ave, Cleveland, OH
Purchase price
Monthly rent
Down payment
Interest rate
Analysis appears here
30-year wealth projection
A calculator for every strategy
Long-term rentals, BRRRR, house hacking, multifamily, Section 8: purpose-built tools instead of one generic form. No account needed to run an analysis.
Built to answer one question: is this a good deal?
Not a spreadsheet with 40 tabs. A clear analysis that tells you what the property earns, what could go wrong, and what to offer.
Deal analysis
Every number that matters, on one screen
Cash flow, cap rate, cash-on-cash, DSCR, NOI, and break-even rent, recalculated instantly as you type. Then project the next 30 years: equity, appreciation, loan paydown, and taxes.
- 9 loan types, including FHA, VA, DSCR, and seller financing
- BRRRR, value-add, and exit strategy modeling
- Auto-saves as you work, restore any session
Deal Summary
Cash flowsCash flow
+$412
Cash-on-cash
9.8%
Cap rate
7.4%
DSCR
1.38
NOI
$16,140
Break-even rent
$1,438
Annual cash flow, years 1 to 10
Sensitivity analysis
Stress-test the deal before you sign
What if rent comes in $200 low, or vacancy doubles? Sensitivity analysis shows how your returns hold up across dozens of scenarios, so the bad surprise stays hypothetical.
- Rent, vacancy, rate, and price scenarios side by side
- Spot the break-even line at a glance
- Know your margin of safety before you negotiate
Monthly Cash Flow Sensitivity
Rent vs vacancy rate
3%
5%
7%
9%
11%
$2,000
$1,900
$1,800
$1,700
$1,600
Green holds up. Red is the scenario you want to know about today, not at closing.
Professional reports
Reports your lender will actually read
Export any analysis as a polished PDF, an Excel model, or a PowerPoint deck. Walk into the bank or a partner meeting with the numbers formatted like you hired an analyst.
- One-click PDF, Excel, and PowerPoint export
- Charts, projections, and assumptions included
- Share deals with partners and lenders in minutes
Investment Analysis Report
2847 Maple Ave, Cleveland, OH
Explore 3,100+ US Markets
Free county-level investment data. See rent-to-price ratios, appreciation trends, and investment scores. No account required.
Rent-to-Price Ratios
Find cash-flow markets
Appreciation Trends
Track price growth
Research Your Market
Thousands of free, data-backed local reports. Start from your city or county and open any calculator with the numbers pre-filled.
Rent vs Buy by City
Should you rent or buy where you live? 580+ cities analyzed with local prices, rents, and a data-backed verdict.
Find your cityCounty Market Analysis
Investment reports for 740+ counties and every state: scores, cap rates, rent trends, and deep-dive guides.
Browse marketsSection 8 Rents by Area
Voucher payment standards and Fair Market Rents by metro, ZIP, and county, plus your local housing authority.
Look up rentsHow It Works
Go from property listing to investment decision in three simple steps.
Enter Deal Details
Property price, rents, expenses: just the basics to get started. About 2 minutes.
See Instant Analysis
Cash flow, cap rate, cash-on-cash, DSCR, and 30-year projections, calculated as you type.
Make Confident Decisions
Save deals, stress-test scenarios, and export reports to share with lenders and partners.
How RentalCalcs compares
DealCheck is a solid product. Here is where we put our energy instead: market data, stress testing, and teaching you the craft.
| RentalCalcs | DealCheck | Spreadsheets | |
|---|---|---|---|
| Run a full analysis without creating an account | After hours of setup | ||
| First analysis includes every Pro feature | |||
| Market data for 3,100+ US counties built in | |||
| Sensitivity analysis to stress-test deals | If you build it | ||
| PDF, Excel, and PowerPoint export | CSV only | ||
| House hack, buy vs rent, and Section 8 tools | |||
| Free guides and local market breakdowns | Help center only |
To be fair: DealCheck offers native mobile apps and listing data import, which we do not. Comparison based on each product's public website as of July 2026.
Built by an Active Investor
I got tired of spreadsheets breaking every time I analyzed a deal. So I built these calculators for my own 6-unit portfolio.
These are the same tools I use before making any offer. They handle the math so I can focus on whether the deal actually makes sense. No venture-scale growth targets, no data resale, just calculators that keep getting better.
Learn to underwrite like an operator
Guides written by a working landlord: how to run the numbers, what the metrics mean, and where deals go wrong. Read the guide, then run your own deal through the calculator.
Simple Subscription Pricing
Start free. Upgrade for unlimited analyses, PDF exports, and Pro tools. Cancel anytime.
Free
Perfect for getting started
- 1st analysis with all Pro features
- All calculators
- Basic charts & 5-year projections
- 1 saved deal
Pro
For serious investors
- Everything in Free
- Unlimited saved deals
- PDF export
- Sensitivity analysis
- Portfolio tracker
- Priority support
7 days free, then $29/mo. Cancel anytime.
Frequently asked questions
Is RentalCalcs really free?
Yes. Your first analysis includes every Pro feature: sensitivity analysis, 30-year projections, all charts, and PDF, Excel, and PowerPoint export. After that you keep a free tier with the core calculators and 5-year projections, or upgrade to Pro for $29 per month for unlimited everything.
Do I need an account to use the calculators?
No. You can run a full analysis without signing up. An account is only needed to save deals and access them across devices.
How is RentalCalcs different from DealCheck or BiggerPockets?
Three things. First, market data is built in: rent-to-price ratios, appreciation trends, and investment scores for 3,100+ US counties. Second, your first analysis includes every Pro feature, with no results paywall. Third, we teach the craft with free guides and local market breakdowns instead of locking education behind a membership.
Where does the market data come from?
Public, regularly refreshed sources, including Zillow research data for prices and rents and HUD Fair Market Rent data for the Section 8 tools. It covers 3,100+ counties and 580+ cities.
What kinds of properties can I analyze?
Single family homes and 1-4 unit rentals, 2-20 unit multifamily buildings, house hacks, BRRRR projects, and Section 8 rentals. There is also a buy vs rent calculator if you are deciding where to live.
Can I cancel my Pro subscription anytime?
Yes. Pro is $29 per month or $290 per year, with a 7-day free trial. Cancel anytime and you keep access through the end of your paid period.
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