How to use the Real Estate Investor Tools

1. Choose a calculator that matches your goal — BRRRR for the buy-rehab-rent-refinance-repeat strategy, Rent vs Buy for a move decision, Cap Rate for a quick yield check, DSCR for a rental-loan qualification estimate, or PITI for the true monthly mortgage cost.
2. Enter the numbers for your property: purchase price, estimated rehab cost, projected monthly rent, operating expenses, interest rate, and down payment as applicable to the tool you selected.
3. Read the headline metric — cap rate percentage, monthly PITI payment, DSCR ratio, or net annual cash flow — displayed at the top of the results panel.
4. Adjust inputs to compare scenarios: raise rent, lower purchase price, or change the rehab budget to see how each variable moves the return before you commit.

What these calculators measure

Cap rate (capitalization rate) is the most widely used quick-yield gauge in real estate: it equals Net Operating Income (NOI) divided by the property's purchase price. A cap rate of 5–10% is typical in most U.S. markets, though the right number depends on location and risk tolerance — a higher cap rate often signals more yield but also more uncertainty. Cash-on-cash return refines this by dividing annual pre-tax cash flow by the actual cash you invested, making it the better metric when you're using a mortgage. PITI — Principal, Interest, Taxes, and Insurance — is the true monthly cost of ownership, and knowing it prevents the common mistake of budgeting only for the P&I portion of a loan payment.

DSCR (Debt Service Coverage Ratio) equals NOI divided by annual debt service. Lenders want a DSCR of at least 1.2, meaning the property earns 20% more than it costs to service the loan. DSCR loans qualify based on the property's income rather than your personal salary, making them popular with investors who already carry multiple mortgages. Rent vs Buy analysis goes beyond the monthly payment comparison — it accounts for the opportunity cost of the down payment, expected appreciation, tax treatment, and total cost of ownership over your expected stay, giving a fairer picture of which option builds more wealth for your timeline.

Frequently Asked Questions

• What is a good cap rate?
  It depends on the market and your risk tolerance. Many investors target 5–10% in U.S. residential and small-commercial properties. A higher cap rate means more yield but often reflects a riskier location or asset condition. In hot coastal markets a 4–5% cap rate may be normal; in Midwest tertiary markets 8–10% is common. Use cap rate as a screening tool, not a final decision.
• What is DSCR and why do lenders care about it?
  DSCR measures how comfortably a property's income covers its debt payments. A DSCR of 1.0 means break-even; lenders typically require at least 1.2 to allow a cushion for vacancies and unexpected expenses. DSCR loans are particularly useful for investors because qualification is based on the property's cash flow rather than the borrower's personal W-2 income.
• What is the 1% rule?
  The 1% rule is a quick screening heuristic: a property passes if its monthly gross rent is at least 1% of the purchase price. For example, a $200,000 home should rent for at least $2,000 per month. It is a starting filter to eliminate obvious losers quickly, not a guarantee of profitability — always follow up with a full NOI and cash-flow analysis.
• Does the BRRRR strategy really work?
  BRRRR (Buy, Rehab, Rent, Refinance, Repeat) works when the after-repair value (ARV) is high enough that a cash-out refinance returns most or all of your initial investment, leaving a cash-flowing rental with little money tied up. The math depends on conservative ARV estimates and renovation cost control — use the BRRRR calculator to stress-test your numbers before committing.