Prorated rent is the portion of monthly rent a tenant pays when they move in or out mid-month, calculated based on the actual number of days they occupy the unit. This is common when relocating, subletting, or signing short-term leases.
Rent is $1,500/month. Move in March 15, move out March 31 (March has 31 days):
$774.19 (Mar 15–30, 16 days)$789.04$800.00If your move-in and move-out dates span multiple months, this calculator automatically splits the calculation by month and totals the results. Since each month has a different number of days (e.g., February has 28 vs. July has 31), the daily rent rate changes per month.
There are two common methods: 1) Days in month: monthly rent divided by total days in that month times the number of days occupied. 2) Annual basis: monthly rent times 12 divided by 365 times the number of days occupied. Different states and landlords may use different methods. This calculator shows all 4 methods side by side for comparison.
For example, if rent is $1,500/month and you move in on the 15th of a 31-day month, using the days-in-month method: 1500 ÷ 31 × 17 = $822.58 (17 days from the 15th through the 31st). Using the 365-day method: 1500 × 12 ÷ 365 × 17 = $838.36. The exact amount depends on which method your lease specifies.
The days-in-month method is more commonly used by landlords in most U.S. states because it is more intuitive. The 365-day method is required by law in some states. Always check your local rental regulations or confirm with your landlord.
Typically, the move-in day counts as day one and the move-out day is not charged. For example, moving in on the 15th and moving out on the 20th means paying for 5 days (the 15th through the 19th). However, lease terms vary. This calculator defaults to counting the move-in day and excluding the move-out day, which you can adjust in the settings.