Average Daily Rate (ADR) Calculator
Compute a hotel or homestay's Average Daily Rate (ADR) and, with occupancy, Revenue per Available Room (RevPAR).
輸入資料
計算結果
重點速覽：Average Daily Rate (ADR) measures the average revenue per room sold — a core hotel metric. ADR = room revenue / rooms sold (only revenue-generating rooms, excluding complimentary, owner-used or vacant); RevPAR = ADR x occupancy%. Higher ADR means more revenue per room, but must be read with occupancy — high ADR with high vacancy is not good.
計算公式
平均每日房價 ADR = 房間總收入 ÷ 已售出房晚數。
已售出房晚數只計產生收入的房間 (不含免費、自用或空置房)。
每間可供出租客房收入 RevPAR = ADR × 入住率%。
$$\text{ADR} = \dfrac{\text{房間總收入}}{\text{已售出房晚數}}$$$$\text{RevPAR} = \text{ADR} \times \text{入住率\%}$$使用說明
- Enter room revenue for the period.
- Enter the revenue-generating rooms sold.
- Enter occupancy to compute RevPAR, and view ADR and RevPAR.
不同房間收入、已售房晚與入住率下的 ADR 與 RevPAR。
| 房間總收入 | 已售房晚 | ADR | 入住率 | RevPAR |
|---|---|---|---|---|
| 5,000 | 50 間 | 100 | 80% | 80 |
| 8,000 | 50 間 | 160 | 80% | 128 |
| 5,000 | 40 間 | 125 | 60% | 75 |
| 12,000 | 100 間 | 120 | 90% | 108 |
理財情境案例
案例一：高房價 vs 高入住，哪個賺得多？
香港一間精品酒店在旺季採高價策略：ADR HK$200，但入住率只有 50%，RevPAR = 200 × 50% = HK$100。同區另一間走親民路線：ADR HK$120，靠高入住率 90%，RevPAR = 120 × 90% = HK$108。
雖然第二間的房價 (ADR) 明顯較低，但因為房間幾乎住滿，每間可供出租客房的收入 (RevPAR) 反而更高。這說明『訂價高』不等於『賺得多』——空房是零收入，過高的房價若把客人嚇跑，總收益可能不升反降。
收益管理 (revenue management) 的核心，正是在 ADR (房價) 與入住率之間找最佳平衡點：淡季可能要降價催谷入住率，旺季則可提價，目標是把 RevPAR (而非單一 ADR) 最大化。
案例二：正確計算已售房晚，避免高估 ADR
一間民宿老闆某月房間收入 HK$5,000。當月共有 50 個房晚有人入住，但其中 10 個是免費招待朋友、員工自用的房晚，真正產生收入的只有 40 房晚。
若錯把 50 房晚當分母：ADR = 5,000 ÷ 50 = HK$100，低估了實際房價；正確只計 40 個收費房晚：ADR = 5,000 ÷ 40 = HK$125。分母放大會拉低 ADR，令老闆誤以為房價偏低而胡亂加價。
計算 ADR 時，分母『已售出房晚數』只能計真正收費的房間，並統一以『房 × 晚』為單位 (例如 10 間房各住 3 晚 = 30 房晚)。建議按月統計，觀察季節性與各推廣活動對 ADR、入住率與 RevPAR 的影響。
常見問題
What is the difference between ADR and RevPAR?
ADR measures average revenue per room SOLD; RevPAR measures revenue per AVAILABLE room = ADR x occupancy. RevPAR captures both price and occupancy, so it reflects revenue performance more fully — high ADR with low occupancy still gives low RevPAR.
How should rooms sold be counted?
Count only rooms that actually generated revenue. Complimentary, staff and vacant rooms should be excluded, or ADR is understated. For comparison, use a consistent unit — e.g. room x night (100 rooms x 3 nights = 300 room-nights).
How often should I compute ADR?
Monthly is recommended. Daily is tedious; a monthly view shows seasonality and promotion effects more clearly, helping pricing and revenue-management decisions.
How do ADR, occupancy and RevPAR work together?
They are the core triangle of hotel revenue management. ADR shows pricing level, occupancy shows how much sold, and RevPAR = ADR x occupancy combines both into revenue per available room — the most complete metric. If RevPAR falls, check whether ADR dropped or occupancy dropped, then act: low ADR may mean underpricing or competition; low occupancy may mean weak demand or poor distribution. Advanced users also watch GOPPAR (gross operating profit per available room).
Does ADR apply to Hong Kong homestays (Airbnb)?
The ADR/RevPAR concepts apply to short-term rentals too, helping pricing and occupancy strategy. But Hong Kong tightly regulates short-term residential letting: under the Hotel and Guesthouse Accommodation Ordinance, letting a residential unit for under 28 days without a licence is unlawful and prosecutable; building deeds and owners' corporations may also forbid it. Confirm legality before operating; licensed hotels/guesthouses can freely use ADR/RevPAR. See the Hong Kong Tourism Board for tourism information.
相關工具
參考資料
內容審核：香港計算器財經團隊。計算邏輯與公式參考香港金融管理局（HKMA）及投資者及理財教育委員會（IFEC）之個人理財計算指引，結果僅供參考，實際以相關機構公佈為準。