Monopoly Property ROI Calculator
Calculate total investment, expected income per turn, and break-even turns for a Monopoly property development.
Results
What is it?
Monopoly ROI analysis calculates whether a property investment will pay off in terms of game-turns. Every turn, each opponent has a probability of landing on your property and paying rent. Expected income per turn equals rent times landing probability. Break-even turns tells you how long until cumulative rent receipts exceed your development cost.
How to use
Enter the property price, house build cost, number of houses built (0-5, with 5 representing a hotel), base rent, 4-house rent from your game board, and the estimated landing probability. A typical property has about 2.5-3% landing probability per player per turn in a 4-player game.
Example scenario
Mayfair (UK version, Park Place equivalent): cost $400, 4 houses at $200 each = $1,200 total investment. 4-house rent $1,500. At 2.8% landing probability: expected income = $1,500 x 0.028 = $42 per turn. Break-even = $1,200 / $42 = 29 turns ? roughly 7-10 circuits of the board.
Pro tip
The orange properties (St. James Place, Tennessee, New York in US version) are statistically the most landed-upon group after passing Go ? players frequently exit Jail landing on oranges. The red group is also strong. Greens and blues have high rents but lower landing frequency and expensive houses. Building 3 houses is often the sweet spot ? rent jumps sharply at 3 houses relative to development cost.