Prorate Rent Calculator
Calculate the prorated rent for a partial month when moving in or out mid-month. Simply input the monthly rent, move-in date, and move-out date to get the exact amount owed.
Published by:
isCalculator Editorial Team
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How to use this tool?
How to Use the Prorate Rent Calculator
This calculator determines the rent you owe for a partial month between your move-in and move-out dates.
- Enter Monthly Rent – Type the full monthly rent amount (e.g., 1500).
- Select Move-In Date – Pick the day you move in.
- Select Move-Out Date – Pick the day you move out (must be after move-in).
- Choose Proration Method – Select either:
- Days in Month – uses the actual number of days in the move-in month (e.g., 28–31).
- Days in Year (365) – uses 365 days for consistency.
- Click "Calculate Prorated Rent" – The result shows the prorated amount and the formula used.
Tip: Press Enter in any input field to quickly calculate. All values must be positive and dates valid.
Previous Results
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Frequently Asked Questions
Prorated rent is the amount of rent charged for a partial month when a tenant moves in or out mid-month. It is calculated by dividing the monthly rent by the number of days in the month (or year) and multiplying by the number of days the tenant occupies the unit.
To calculate prorated rent, divide the monthly rent by the total number of days in the month (or 365 for a year-based method) to get the daily rate. Then multiply the daily rate by the number of days the tenant will occupy the unit.
The 'Days in Month' method uses the actual number of days in the move-in month (e.g., 31 for January, 28 for February). The 'Days in Year (365)' method uses a fixed 365-day year. The choice depends on your lease agreement or local practice.
