Occupancy Rate Calculator
Calculate occupancy rate, vacancy rate, and revenue per available unit for hotels, rentals, offices, and other space-based businesses.
Enter total units, occupied units, period length in days, and revenue to measure occupancy, vacancy, and revenue per available unit.
About Occupancy Rate and RevPAU
Occupancy rate is the share of capacity that is filled. The occupancy rate calculator divides occupied units by total units and multiplies by 100. Vacancy rate is the complement: empty units divided by total units. Revenue per available unit (RevPAU) divides period revenue by total units times the number of days, which is the same idea as hotel RevPAR when a unit is a room-night. With 100 units, 85 occupied, 30 days, and $50,000 of revenue, occupancy is 85 percent, vacancy is 15 percent, and RevPAU is $16.67. Define a unit the same way throughout. For a hotel, a unit is typically a room. For apartments, a unit is a lease. For coworking, it may be a desk. Occupied should mean generating rent or room revenue under that definition, not merely reserved. If occupied exceeds total units, the occupancy percentage will exceed 100 percent, which usually means the capacity figure is wrong. Days are used only in RevPAU; they do not change the occupancy percentage. Mixing a 30-day revenue total with a 365-day period will understate RevPAU. High occupancy is not the same as high profit. A building at 95 percent occupancy with heavy discounts can earn less than one at 85 percent with better rates. That is why RevPAU sits next to occupancy: it captures rate and fill together. Seasonal properties should compare the same month across years. Office landlords often track occupancy on leased square footage; converting that to units still works if total and occupied use the same unit of measure. Use the occupancy rate calculator for a hotel night, a monthly rental portfolio, or a snapshot of leased versus vacant space. Then look at ADR or rent per unit, operating costs, and turnover. The result is an operations metric, not an appraisal of the property or a forecast of next season's demand.
Occupancy Rate Calculator Examples
Occupancy uses unit counts; RevPAU also uses days and revenue.
| Input | Output | Notes |
|---|---|---|
| 100 total units; 85 occupied; 30 days; $50,000 revenue | Occupancy 85.00%; vacancy 15.00%; RevPAU $16.67 | A typical monthly hotel or rental snapshot. |
| Occupied units 75 with other defaults unchanged | Occupancy rate 75.00%; vacancy rate 25.00% | Ten fewer occupied units cut occupancy by 10 points; RevPAU is unchanged unless revenue also falls. |
| 120 total units; 100 occupied; 30 days; $50,000 revenue | Occupancy 83.33%; vacancy 16.67%; RevPAU $13.89 | More capacity with the same revenue lowers both occupancy and RevPAU. |
How to Calculate Occupancy Rate
- Count total units of capacity and how many were occupied under the same definition.
- Enter the length of the period in days and the revenue earned in that period.
- Select Calculate to read occupancy, vacancy, and revenue per available unit.
- Compare occupancy with RevPAU so a high fill rate is not confused with strong pricing.
Occupancy Rate Calculator FAQ
How is occupancy rate calculated?
Occupancy rate is occupied units divided by total units, times 100. Vacancy rate is the unused share of the same capacity.
What is revenue per available unit?
RevPAU is total revenue divided by total units times days. For hotels it matches the RevPAR idea when a unit is a room and days are nights in the period.
Do days affect occupancy percentage?
No. Days are used only for RevPAU. Occupancy and vacancy depend only on occupied and total units.
Can occupancy exceed 100 percent?
The arithmetic will exceed 100 percent if occupied units exceed total units. That usually means capacity is understated or overbooking is being counted as extra occupied units.
Is high occupancy always better?
Not if it is bought with discounts that collapse RevPAU. Read occupancy and revenue per available unit together.