Real Estate · Free Interactive Tool
The 1% Rule Calculator
A 10-second screen for rental deals.
Your Numbers
The Result
The Operator's Read
0.88% — below 1%. Cash flow will be tight; these deals usually lean on appreciation, which is a different bet.
Built by The Crimson Bench · Educational tool, not financial advice
About the The 1% Rule Calculator
Compare monthly rent to purchase price. Rent at or above 1% of price is the classic quick filter for cash-flowing rentals.
How the The 1% Rule Calculator Works
2 inputs in, 1 results out — computed live on your device. Here's exactly what it uses.
| Input | Example value |
|---|---|
| Purchase price | $250,000 |
| Monthly rent | $2,200 |
Worked Example
Using the example inputs above, the tool returns:
Rent-to-price
0.9%
The Operator's Read
0.88% — below 1%. Cash flow will be tight; these deals usually lean on appreciation, which is a different bet.
Assumptions & Limitations
- •This is a single-point calculator — it answers one question at a time. For a full time-based projection, use the matching Toolkit Pro simulator.
- •Defaults are illustrative. Replace them with your real numbers before relying on the result.
- •Educational tool only — not financial, investment, tax, or legal advice.
Frequently Asked Questions
What does the The 1% Rule Calculator calculate?
Compare monthly rent to purchase price. Rent at or above 1% of price is the classic quick filter for cash-flowing rentals. It takes 2 inputs — Purchase price, Monthly rent — and returns Rent-to-price.
How do I use the The 1% Rule Calculator?
Enter your figures in the fields above and the result updates instantly. No signup, no limits, and nothing leaves your browser — the math runs on your device.
Is the The 1% Rule Calculator free?
Yes, completely free. For the full time-based simulation — projection tables, scenarios, Excel/PDF export, and AI analysis — see the matching Toolkit Pro simulator.
Who built this tool?
The Crimson Bench's Ivy League-educated operators — the same people we deploy into C-suites. It uses the exact method they'd apply in an engagement.
Is this financial advice?
No. The The 1% Rule Calculator is an educational tool for directional planning — not financial, investment, tax, or legal advice.
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The Crimson Bench · Est. 2002 · Founded in New York City
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