Prorated Rent Calculator
Moving in mid-month? Enter your rent and move-in date to see exactly what you owe — by actual days in the month or the 30-day standard — instantly and privately in your browser.
📖 How it works & FAQWhat is prorated rent?
Prorated rent is the partial month's rent you owe when you move in on any day other than the first. Instead of paying for a full month you didn't occupy, the monthly rent is broken down into a daily rate and multiplied by the number of days you actually have the keys. Landlords use two common conventions: the actual days-in-month method divides rent by the real length of that month (28–31 days), while the 30-day standard (sometimes called a banker's month) divides rent by a flat 30 regardless of the calendar. The two can differ by a few dollars a day, so it pays to know which one your lease specifies.
How to use it
- Enter your full monthly rent.
- Pick your move-in date — the calculator counts from that day through the last day of the month, with the move-in day included.
- Choose the proration method your lease or landlord uses. Results update instantly: prorated rent due, the daily rate, days occupied, and how much you save versus a full month.
Everything runs privately in your browser — nothing is uploaded. Figures are estimates only, not professional, financial, or legal advice; your signed lease controls what you actually owe.
FAQ
- Does the move-in day count as a rent day?
- Yes — standard practice (and this calculator) counts the move-in day itself, since you have possession of the unit that day. Moving in on the 15th of a 31-day month means 17 billable days.
- Which method is better for tenants?
- It depends on the month. In a 31-day month the actual-days method gives a lower daily rate (rent ÷ 31 versus rent ÷ 30). In February it's the opposite. Neither is universally cheaper — check what your lease says.
- Can prorated rent exceed a full month's rent?
- With the 30-day method, moving in on the 1st of a 31-day month would technically compute to 31/30 of rent. This calculator caps the charge at one full month, which is how landlords handle it in practice.
- Does this work for move-out proration too?
- The same daily rates apply. For a move-out, multiply the daily rate shown by the number of days from the 1st through your move-out date instead of using the days-occupied figure.