Real estate calculators

The quick numbers brokers and investors run every day — cap rate, cash-on-cash, mortgage payment, DSCR and more. Everything computes in your browser; nothing is sent anywhere.

Cap rate

NOI ÷ purchase price

Annual NOI$Purchase price$

Cap rate—

NOI

Operating income − operating expenses

Gross operating income$Operating expenses$

Net operating income—

Cash-on-cash return

Annual pre-tax cash flow ÷ cash invested

Annual cash flow$Total cash invested$

Cash-on-cash—

Mortgage payment

Monthly principal & interest

Loan amount$Interest rate%Termyrs

Monthly payment—

DSCR

NOI ÷ annual debt service

Annual NOI$Annual debt service$

Debt-service coverage—

Gross rent multiplier

Price ÷ gross annual rent

Price$Gross annual rent$

GRM—

Price per unit

Price ÷ number of units

Price$Units#

Per unit—

Price per sq ft

Price ÷ square footage

Price$Square feetft²

Per sq ft—

Max offer (from cap rate)

NOI ÷ target cap rate

Annual NOI$Target cap rate%

Max purchase price—

Break-even occupancy

(Op-ex + debt service) ÷ GPR

Operating expenses$Annual debt service$Gross potential rent$

Break-even occupancy—

Effective gross income

GPR × (1 − vacancy)

Gross potential rent$Vacancy%

Effective gross income—

Total loan interest

Interest paid over the full term

Loan amount$Interest rate%Termyrs

Total interest—

Want the whole picture in one place? Quick property underwriting runs NOI, value at a target cap rate, DSCR, cash-on-cash and a sensitivity table together.

Working from a rent roll or T-12 PDF? Convert it to verified Excel first, then drop the numbers in here.