Free tool

NOI calculator

From gross potential rent through vacancy and expenses to the number every valuation starts with.

Moraine · Instrument

NOI calculator

Gross potential rent through vacancy and expenses to net operating income.

Net operating income

$1,350,000

Expense ratio 44% of EGI

EGI $2,400,000 ($2,400,000 less 5.0% vacancy, plus $120,000 other income) − $1,050,000 OpEx

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Why NOI is where deals are won and lost

Every cap-rate valuation is only as good as the NOI beneath it, and NOI is where offering memoranda get creative: market-rate vacancy on an under-market rent roll, management fees below actuals, capital items reclassified as one-time. The deep treatment is in NOI in Real Estate; pair the result with the cap rate calculator for implied value and the DSCR calculator for debt capacity. To verify NOI against the actual documents, see the T-12 guide.

From napkin math to defensible model

The calculator answers one number. Moraine underwrites the whole deal.

Drop in an OM, rent roll, or T-12 and get a source-linked DCF — NOI from the actual documents, not the broker's pro forma.