Cap Rate & Rental ROI Calculator

K-08

NOI, cap rate, cash-on-cash, total return, GRM, and the 1% rule from one set of numbers.

Property inputs

Purchase
Income

Laundry, parking, storage, pet fees.

Operating expenses

Share of rent set aside for repairs and replacements.

Dues, owner-paid utilities, lawn care.

Financing

Set 100% for an all-cash purchase. Cap rate ignores financing; the other returns don't.

Loan term

This rental earns a 6.3%N2 cap rate, $15,658N1 a year before any mortgage, and returns 1.2%N4 cash on cash after it.

Plan K-0830-year fixed at 6.875% with 25% down. Estimates, not investment advice.

This rental earns a 6.3% cap rate, $15,658 a year before any mortgage, and returns 1.2% cash on cash.

Net operating incomeN1
$1,305/mo
38% of income goes to costs
Cash investedN3
$72,500
down, closing, repairs
Cash flowN4
$73/mo
after $1,232 P&I
Year-one total returnN5
14.2%
with paydown and appreciation

Where the rent goes

$2,100 a month: each cost, and what is left for you

Mortgage, P&I
$1,232
59%
Property taxes
$229
11%
Insurance
$125
6%
Vacancy
$105
5%
Maintenance & CapEx
$168
8%
Management
$168
8%
Your cash flow
$73
3%

Every return measure, and the price for each cap rate

The same deal read seven ways, then priced backward from the NOI

MeasureValueReading
Cap rate6.3%6% or more: typical of rentals that cash-flow
Cash-on-cash1.2%Under 8%: thin for the risk
Year-one total return14.2%Cash flow, loan paydown, and appreciation
Gross rent multiplier9.9Price ÷ a year's rent; lower is cheaper
1% rule0.84%Misses: rent is under 1% of price
Expense ratio38%Operating costs ÷ gross income; 35–50% is typical
DSCR1.06Under 1.20: tight for a lender
Target cap ratePrice to pay
5%$313,160
6%$260,967
7%$223,686
8%$195,725
9%$173,978
10%$156,580

Green prices are at or above your $250,000: you already pay less than that cap rate implies.

Estimates for education only, not investment advice. Cap rate uses the purchase price alone; closing costs and repairs count in cash invested. Use real quotes for taxes and insurance before you offer.

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