Move Out Rent Calculator
Moving out on the 10th should not cost you a full month’s rent. This Move-Out Rent Calculator prorates rent for partial months: enter the monthly rent, the move-out or move-in day, the number of days in the month, and the proration method your lease uses. It returns the daily rate, the exact day count, and the full arithmetic behind every result, so landlord and tenant see the same math.
Quick Answer
For $1,500 monthly rent and a move-out on the 10th of a 30-day month, the prorated rent is $500.00: a $50.00 daily rate times 10 occupied days. The daily-rate method, monthly rent divided by the actual days in the month, is the standard most leases and courts use, but whatever method your lease names wins, so match the method before you pay.
💡 Key takeaways
- Prorated rent = (monthly rent / daily divisor) x days occupied. The divisor is where methods differ, not the idea.
- The move-out day counts. Moving out on the 10th means 10 days owed, not 9; the same inclusive rule applies to the move-in day.
- February is pricier per day than July: $1,500 / 28 = $53.57/day versus $1,500 / 31 = $48.39/day.
- If your lease names a proration method, that method controls. The daily-rate method is the default most landlords and courts apply when the lease is silent.
- Quick Answer
- How to use the move-out rent calculator
- The proration formula and the three methods landlords use
- Worked example: moving out on the 10th
- Which day counts? The move-out and move-in day rules
- What competing calculators miss
- Frequently asked questions
- Add This Calculator to Your Website
- References
How to use the move-out rent calculator
Four inputs, one click. Start by picking the direction: Move-out for a partial final month, Move-in for a partial first month. Then enter the full monthly rent from your lease, the day you move (1 to 31), and the real length of that month, choosing 28 or 29 for February. Finally, set the proration method to whatever your lease specifies; if the lease is silent, leave the recommended daily-rate method selected. Click Calculate to see the daily rate, the occupied-day count, and the prorated amount with the arithmetic written out in plain text.
If you are budgeting for the new place at the same time, the 40x rent rule calculator shows the income many landlords require, which is handy when the prorated final bill lands alongside a new deposit.
The proration formula and the three methods landlords use
Every proration method answers the same question: what is one day of this month worth? The daily-rate method finds it by dividing the monthly rent by the actual days in the month, then multiplying by the days occupied: prorated rent = (monthly rent / days in month) x days occupied. The three methods below differ only in the divisor, and that small difference is what landlord-tenant proration disputes are usually about.
The daily-rate method is the fairest because it tracks the real month: February days cost more than July days, exactly as the arithmetic demands. The 30-day flat method overcharges in February and undercharges in 31-day months. The annual method smooths every day to the yearly average, which is why commercial leases like it. If your rent is on the high side for the area, the maximum fair rent calculator gives you a benchmark to compare it against before you sign.
The same rent in February versus July
Month length is the hidden lever in every proration. Here is $1,500 rent with a move-out on the 10th, under the daily-rate method, across three month lengths:
Worked example: moving out on the 10th
A tenant pays $1,500 per month and moves out on the 10th of a 30-day month. Enter those values with the daily-rate method selected and the calculator returns:
- Daily rate: $1,500 / 30 = $50.00 per day
- Days occupied: the 1st through the 10th = 10 days
- Prorated rent: $50.00 x 10 = $500.00
Under the 30-day method the answer is the same $500.00, because the month happens to have 30 days. Under the annual method it would be ($1,500 x 12) / 365 x 10 = $493.15. Switch the tab to Move-in for the reverse case: $1,800 rent, move in on the 12th of a 30-day month, days occupied = 30 – 12 + 1 = 19, daily rate $60.00, prorated rent $1,140.00. Run the numbers yourself in the tool above and compare; the result line shows the exact arithmetic, which is what you want when a landlord’s figure differs from yours.
Which day counts? The move-out and move-in day rules
Both the move-out day and the move-in day count as occupied days. Moving out on the 10th means you owe for 10 days, not 9; moving in on the 12th of a 30-day month means 19 days, not 18. This inclusive counting is the single most common source of proration disputes, which is why the calculator states the day count explicitly in every result. Double-check your lease end date with the lease termination date calculator if the dates are fuzzy, and when you move out of one unit and into another in the same month, prorate twice, once in each mode, and add the two amounts together. Proration and the security deposit are separate things: the prorated amount is rent you owe for partial occupancy, while deposit deductions cover damages or unpaid balances after you leave.
What competing calculators miss
Most prorated-rent tools online offer a single method and a single direction: three numbers in, one answer out, with no way to match the method your lease actually specifies. Baselane’s calculator is better, with move-in and move-out dates and two methods (calendar days and the 30-day standard), but it cannot match an annual-method commercial lease. RentLateFee’s version covers all 50 states with strong legal FAQs yet computes with the daily-rate method only. This page combines move-in and move-out modes with all three proration methods, the February day counts, and an explicit occupied-day count in every result. One thing no calculator replaces is the lease itself: if your lease names a method, that method wins over any default, so always verify the rent clause before paying. For the daily rate on its own, the daily rent calculator isolates that one number.
Frequently asked questions
Yes. Moving out on the 10th means you owe for the 1st through the 10th, which is 10 days, not 9. The same inclusive counting applies to the move-in day: arriving on the 12th of a 30-day month means 19 days, not 18. This is the most common source of proration disputes, which is why the calculator prints the day count in every result.
Read the rent clause of your lease. If it names a method, use it; the lease controls. If the lease is silent, the daily-rate method, monthly rent divided by the actual days in the month, is the standard most landlords and courts apply.
Prorate twice: run the calculator once in move-in mode for the arrival period and once in move-out mode for the departure period, then add the two amounts together. Each proration uses the same monthly rent and the same month length.
Generally no, unless the lease says otherwise. Proration exists precisely so partial months are billed for the days occupied. A landlord who refuses to prorate should point to the lease language that allows it, and tenant protections vary by state, so check your local rules.
Because the same monthly rent is spread over fewer days. At $1,500 a month the daily rate is $53.57 in a 28-day February but $48.39 in a 31-day July, so a 10-day stay costs $535.71 in February and $483.87 in July.
No. Prorated rent is what you owe for partial occupancy and is paid like rent. A security deposit deduction is taken from your deposit after you leave, for damages or unpaid amounts. The two are separate lines on your ledger.
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References
- Merriam-Webster. Definition of “prorate”. Accessed October 23, 2026.
- Law Insider. Prorated Rent sample clauses. Accessed October 23, 2026.
- California Legislative Information. California Civil Code Section 1946 (termination of month-to-month tenancy; rent due through termination date). Accessed October 23, 2026.
- Cornell Law Institute, Legal Information Institute. Landlord-Tenant Law. Accessed October 23, 2026.
- New York State Attorney General. Residential Tenants’ Rights Guide. Accessed October 23, 2026.
- U.S. Department of Housing and Urban Development. Office of Fair Housing and Equal Opportunity. Accessed October 23, 2026.
- U.S. Department of Housing and Urban Development. Rental Assistance. Accessed October 23, 2026.
- USA.gov. File a housing complaint. Accessed October 23, 2026.