Mortgage & real estate

Prorated Rent Calculator

Enter the monthly rent, the number of days occupied and the days in the month to find a fair partial-month charge.

  • Free
  • No sign-up
  • Updated for 2026

Rent & days occupied

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Enter the monthly rent, days occupied and days in the month to see the prorated rent.

Worked example

With these example inputs:

  • Monthly rent$2,000
  • Days occupied10
  • Days in month30

Prorated rent: $667

  • Full monthly rent$2,000
  • Share of month33.3%

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What this prorated rent calculator does

This calculator finds your prorated rent. You enter the monthly rent, days occupied, and days in the month. The tool then shows the partial rent in your currency. It also shows the share of the month. This is a handy moving tool. You can run a few what-ifs. The result helps you split a rent fairly.

What prorated rent is

Prorated rent is rent for part of a month. You pay only for the days you occupy. It is less than a full month's rent. It applies when you move mid-month. So you are charged in proportion to your stay. It appears in the currency you choose.

How it is calculated

The tool takes the monthly rent. It divides by the days in the month. That gives a daily rate. It then multiplies by the days occupied. The result is your prorated rent. The calculator takes care of this for you.

What the result tells you

The result shows your prorated rent. Rent of two thousand for ten days of a thirty-day month is about six hundred sixty-seven. More days raise it. Fewer days lower it. So it shows your fair share for the month. It is a clean final figure.

The days occupied

The days occupied is how long you live there. Count from your move-in to month end. A mid-month move means fewer days. So you pay less for that month. Count the days carefully. So the number must match your stay. Check the start date.

The days in the month

The days in the month sets the daily rate. Months have twenty-eight to thirty-one days. A longer month makes each day cheaper. So the same stay can cost a little less. Some leases use a flat thirty days instead. So check which method your lease uses. It changes the result slightly.

When proration applies

Proration applies when you move mid-month. It is common on a first month. It also fits a final month. You may prorate when a lease starts late. So both move-in and move-out can use it. Ask your landlord which days count. Agree the method up front.

How to use it

Enter the monthly rent first. Add the days occupied and days in the month. Read your prorated rent in your currency. See the share of the month. Then try different dates. Compare a few move-in days. Use it to split a rent fairly.

The limits of this calculator

This tool has clear limits. It uses a simple daily rate. It does not include deposits or fees. Some leases prorate differently. A flat thirty-day method can differ. So treat it as an estimate. So treat the number with care.

Common mistakes to avoid

A common mistake is miscounting the days occupied. An off-by-one error shifts the rent. Another is using the wrong month length. That changes the daily rate. Some forget to agree the method. Others mix up move-in and move-out. A clear number keeps you from these slips.

A final tip

Use this to split a rent fairly. Remember it is rent for part of a month. Count the days you occupy with care. Check the month length your lease uses. Agree the method with your landlord. Do not guess the daily rate. A second look sharpens your view.

Frequently asked questions

How is prorated rent calculated?

Divide the monthly rent by the days in the month, then multiply by the days occupied. Rent of $2,000 for 10 days of a 30-day month comes to about $667.

Which day count should I use?

The most common method uses the actual days in that calendar month, so a move during February divides by 28 or 29. Some leases instead divide by a flat 30 days. Check your agreement.