Occupancy Rate Calculator
Enter your property details to calculate physical occupancy rate, vacancy rate, economic occupancy, revenue efficiency, and lost income in seconds. Switch between unit-based, time-based, and revenue-based modes to match how you track your property. Results update instantly as you type.
What is occupancy rate and why does it matter?
Occupancy rate is the percentage of a property's rentable units, rooms, or time that is actually occupied during a given period. For a landlord or investor it is one of the most direct measures of performance: a higher occupancy rate means less revenue is being left on the table from vacant units. It feeds directly into the calculation of gross rental income, net operating income (NOI), and ultimately the capitalization-rate valuation of the property. Lenders, appraisers, and investors all scrutinize occupancy when underwriting a deal, and most commercial lenders require a stabilized occupancy above 90% before releasing full loan proceeds.
Physical occupancy vs. economic occupancy
Physical occupancy counts the proportion of units that have a tenant in them, regardless of whether that tenant is paying full rent. Economic occupancy (sometimes called effective occupancy) measures the proportion of gross potential income that is actually collected after accounting for rent concessions, free-rent periods, and tenant delinquencies. A building can show 95% physical occupancy but only 88% economic occupancy if several tenants are on discounted leases or behind on rent. The economic figure is what a sophisticated investor cares about most, because it reflects the cash actually flowing into operations. For stabilized underwriting purposes, use the economic occupancy figure; for lease-up analysis or marketing KPIs, track both.
Time-based occupancy for hotels and short-term rentals
For hotels and short-term rental properties, occupancy is measured by night rather than by unit. The standard formula divides total occupied room-nights by total available room-nights over the period. A 50-room hotel open for 30 days has 1,500 available room-nights; if 1,200 were sold, occupancy is 80%. This figure is used in conjunction with Average Daily Rate (ADR) to derive Revenue Per Available Room (RevPAR), the headline profitability metric in hospitality. In the time-based mode of this calculator you can enter aggregate occupied and available days for any period (a week, a month, a year) to get the same result. For a multi-unit STR portfolio, multiply the number of units by the number of days in the period to get total available unit-nights.
How vacancy rate and lost income are calculated
Vacancy rate is simply the complement of occupancy rate: 100% minus occupancy rate. If occupancy is 88%, the vacancy rate is 12%. Lost income converts that empty capacity into dollars: multiply the vacancy rate by gross potential rent (the total rent collectible at 100% occupancy) over the period. For example, a 20-unit building where each unit rents at $1,500 per month has a gross potential income of $30,000 per month. At 88% occupancy ($26,400 collected), the monthly lost income is $3,600 and the annual figure is $43,200. That annual number illustrates why raising occupancy by even a few percentage points has an outsized effect on property value, because most value methods capitalize income at a multiple of 10-20 times.
Occupancy rate benchmarks by property type
| Property type | Excellent | Good | Fair | Below average |
|---|---|---|---|---|
| Multifamily apartments | 95%+ | 90-94% | 80-89% | Below 80% |
| Single-family rentals | 95%+ | 90-94% | 85-89% | Below 85% |
| Class A apartments | 95%+ | 92-94% | 88-91% | Below 88% |
| Class B/C apartments | 92%+ | 88-91% | 82-87% | Below 82% |
| Short-term rentals (STR) | 75%+ | 65-74% | 50-64% | Below 50% |
| Hotels (full-service) | 75%+ | 65-74% | 55-64% | Below 55% |
| Hotels (limited-service) | 70%+ | 60-69% | 50-59% | Below 50% |
| Commercial office | 90%+ | 85-89% | 75-84% | Below 75% |
Industry-standard occupancy thresholds. Economic occupancy is typically 2-5 points below physical occupancy.
Frequently asked questions
What is a good occupancy rate for a rental property?
For long-term multifamily rentals, 90-95% physical occupancy is considered healthy by most property managers and lenders. Class A properties in strong markets often achieve 95% or above. Below 85% is a warning sign that may indicate pricing is above market, the property needs renovation, or the local market is oversupplied. Short-term rentals and hotels have lower benchmarks: 65-75% is good for hotels, and 70-80% is strong for STR platforms like Airbnb in most markets.
What is the difference between occupancy rate and vacancy rate?
They are exact complements. Occupancy rate = occupied units / total units. Vacancy rate = 1 - occupancy rate, or equivalently (vacant units / total units). If occupancy is 92%, vacancy is 8%. Some markets quote vacancy (common in commercial real estate) while others quote occupancy (common in multifamily and hospitality). Both refer to the same underlying data.
How do I calculate occupancy rate for a hotel?
For hotels use the time-based formula: occupancy rate = occupied room-nights / available room-nights. For a 100-room hotel measured over a 30-day month, available room-nights are 3,000. If 2,400 rooms were sold, occupancy is 2,400 / 3,000 = 80%. Most hotel performance systems track this daily and aggregate to monthly and annual figures. You can then multiply ADR (average daily rate) by the occupancy rate to calculate RevPAR (revenue per available room), the hospitality industry's primary revenue-efficiency metric.
Why is my economic occupancy lower than my physical occupancy?
Economic occupancy strips out income lost to concessions, lease-up specials, and delinquencies that physical occupancy ignores. A unit with a tenant receiving two free months counts as 100% physically occupied but contributes nothing to income during those months. Similarly, a tenant two months behind on rent is physically present but reduces economic occupancy. The gap between physical and economic occupancy is usually 2-5 percentage points for a stabilized property; a wider gap signals excessive concessions or collection issues worth addressing.
How much does a 1% increase in occupancy rate affect property value?
The impact depends on the property's gross potential income and the local capitalization rate. For a 20-unit building at $1,500 per unit per month (gross potential income of $360,000 per year) and a 6% cap rate, a 1-percentage-point occupancy increase ($3,600 more annual income) adds roughly $60,000 of property value ($3,600 / 0.06). At a 5% cap rate the same income gain adds $72,000. This leverage effect is why even small improvements in occupancy and rent collection can substantially increase a property's appraised value.
What causes low occupancy rates?
Common drivers include: pricing above the prevailing market rate (the most frequent cause), deferred maintenance reducing the property's competitiveness, weak marketing and listing visibility, a concentration of lease expirations in a single slow season, poor tenant retention, and local market oversupply from new construction. Economic downturns can suppress demand broadly. The first step is benchmarking against comparable properties nearby; if the market is strong and your occupancy lags, pricing and presentation are the first levers to pull.
Is 100% occupancy the goal for a rental property?
Not necessarily. Very high occupancy (98-100%) may mean rents are set below market, leaving money on the table. A 94-96% occupancy at higher rents often produces more net operating income than 100% occupancy at discounted rents. Many experienced investors target 93-95% and use the small cushion to make unit upgrades between tenancies, maintain pricing power, and avoid the costs of rushed repairs and discounted re-leasing that come with very high turnover.