Occupancy rate calculator for hotels and rental property Estimate how full a property is, compare occupancy with vacancy, and see how many units or room nights are still empty over the same period.
How this estimate works
Occupancy rate = occupied units divided by total units. Vacancy rate is the complement, and vacant units are the difference between the two counts.
Occupancy rate
90%
45 occupied units and 5 vacant units out of 50 total.
Occupancy rate
90%
Vacancy rate
10%
Vacant units
5
Occupancy comparison sheet
Measure
Value
Interpretation
Occupancy rate
90%
Share of available units or room nights that are filled.
Vacancy rate
10%
The complement of occupancy: the share that remains empty.
Vacant units
5
How many units or room nights are still unused in the period.
How to interpret the result Occupancy rate tells you how full the inventory was, but not whether the property was profitable. A hotel or rental can have strong occupancy and still underperform on ADR, operating costs, or overall yield.
Occupancy rate calculator: hotel and rental occupancy, vacancy, and vacant units
An occupancy rate calculator shows how full a property was over a period by comparing occupied units or room nights with the total available inventory. It is useful for hotels, short-term rentals, and rental portfolios when you want occupancy rate, vacancy rate, and vacant units in one place instead of a single percentage on its own.
How occupancy rate is calculated
Occupancy rate is the share of available inventory that was occupied during the period you are measuring. In the simplest form, the formula is occupied units divided by total units, multiplied by 100. If you are tracking hotels, those inputs are often room nights sold and room nights available. If you are tracking apartments or rental portfolios, the same maths can be applied to occupied units and total units.
The key is to keep the numerator and denominator on the same time basis. A daily occupancy rate should use daily available inventory. A monthly occupancy rate should use monthly inventory. Mixing different periods makes the result harder to interpret and can produce misleading results even when the percentage looks neat.
Occupancy rate = occupied units / total units x 100
Shows what share of the inventory was filled during the period.
Vacancy rate = vacant units / total units x 100
Shows the complement of occupancy: the share that remained empty.
Vacant units = total units - occupied units
Counts how many units or room nights were still unused in the same period.
Why occupancy and vacancy are complements
Occupancy rate and vacancy rate are two sides of the same inventory picture. If 90% of available units are occupied, 10% are vacant. If 75% are occupied, 25% are vacant. The calculator shows both so you can read the result as a fill rate and an emptiness rate at the same time.
That complement matters because occupancy alone does not show how much inventory is still available to sell or lease. Vacancy alone does not show how much of the property is already producing revenue. Seeing both helps you judge whether the property is full, partly full, or materially underused.
If a building has 50 available units and 45 are occupied, occupancy rate is 45 / 50 = 0.9, or 90%. Vacancy rate is therefore 10%, and the property has 5 vacant units. That is the same result the calculator shows on its default inputs.
For hotels, the same example can be read as room-night occupancy. If 45 of 50 room nights are sold in the period, occupancy is still 90%. The calculator is deliberately flexible so the same percentage maths works for both property counting and room-night counting, as long as the numerator and denominator match.
When occupancy rate is most useful
Occupancy rate is a useful planning metric for hotels, apartment buildings, self-storage, student housing, and short-term rentals. It helps with pricing, revenue forecasts, staffing, and inventory planning because it quickly shows how much of the available stock is already producing value.
The metric is also useful when you want to compare periods. A monthly occupancy rate can show whether a property is filling better in summer than in winter, while a weekly occupancy rate can highlight short-term demand swings. That makes the calculator helpful for both operational reviews and simple property-performance checks.
What occupancy rate does not tell you
Occupancy rate does not measure profit, revenue per unit, or pricing power. A hotel can have strong occupancy and still underperform if room rates are too low or operating costs are too high. A rental portfolio can have high occupancy and still have weak returns if concessions, turnover costs, or maintenance drag the economics down.
That is why occupancy works best alongside related metrics such as ADR, cap rate, and gross rent multiplier. Those tools answer different questions: occupancy shows fill, ADR shows price per sold room night, and cap rate or gross rent multiplier show how revenue relates to asset value.
Divide occupied units by total units and multiply by 100. If 45 of 50 units are occupied, occupancy is 90%.
What is the occupancy rate formula?
Occupancy rate = occupied units divided by total units, multiplied by 100. Vacancy rate is the complement of occupancy rate.
What is vacancy rate?
Vacancy rate is the share of the inventory that is not occupied. It is calculated as vacant units divided by total units, multiplied by 100.
Is occupancy rate the same for hotels and rental property?
The percentage maths is the same, but the inputs can differ. Hotels usually track room nights sold versus room nights available, while rental portfolios often track occupied units versus total units.
What is a good hotel occupancy rate?
There is no single good occupancy rate that applies everywhere. A useful benchmark depends on the market, season, property type, and pricing strategy.
Should I track occupancy daily, weekly, or monthly?
Use the period that matches your reporting goal. Daily tracking helps with hotel and short-term-rental pacing, while weekly or monthly tracking is often better for broader planning and comparisons.
Does occupancy rate include out-of-order rooms?
Only if you include them in the denominator. For a cleaner result, many operators remove units that were not truly available for sale during the period.
Does high occupancy always mean high profit?
No. Occupancy only shows fill. Profit also depends on pricing, operating costs, debt service, and other expenses.
What is the difference between occupancy rate and ADR?
Occupancy rate shows how full the inventory was, while ADR shows average daily room revenue per sold room night. They answer different questions and are often reviewed together.
