Free tools · Moving day
Prorated rent calculator
Moving in or out mid-month? Enter your rent and the date, and see your daily rate and exactly what you owe for the partial month — by actual days or the 30-day method.
Free · No account · Nothing saved
Enter your rent and pick a date to see the prorated amount.
How prorated rent works
Rent is quoted by the month, but nobody moves on the 1st at midnight. Proration converts the monthly number into a daily one so you only pay for the days you actually have the place: daily rate = monthly rent ÷ days, then prorated rent = daily rate × days you occupy.
The only real decision is what “days” means. The actual-days method uses the true length of the month — $2,400 in a 31-day August is $77.42 a day, but the same rent in February is $85.71 a day. The 30-day method flattens every month to 30 days ($80.00 a day for $2,400), which many leases prefer for its simplicity. The difference on a typical mid-month move is a few dollars — but it’s exactly the kind of few dollars worth settling before it becomes a debate.
Moving in with roommates? Once you know the partial month’s total, our rent split calculator handles who pays what share of it — and Split! keeps every month after that tidy.
Frequently asked questions
How do you calculate prorated rent?+
Divide the monthly rent by the number of days to get a daily rate, then multiply by the days you actually occupy the unit. Moving in on August 12 with $2,400 rent: August has 31 days, so the daily rate is $77.42, you occupy 20 days (the 12th through the 31st), and the prorated rent is $1,548.39.
Should I use actual days in the month or the 30-day method?+
Both are common. The actual-days method divides rent by the real number of days in that month (28–31), so the daily rate changes month to month. The 30-day “banker's month” method always divides by 30, which is simpler and is written into many leases. Check your lease first — if it specifies a method, that's the one that applies. If it doesn't, either is defensible; just agree before money changes hands.
Is my landlord required to prorate rent?+
Usually not — in most places proration is a matter of agreement rather than law unless your lease or local rules say otherwise. That said, prorating a mid-month move-in is standard practice, and most landlords will do it if you ask before signing. Get the agreed amount and method in writing.
Do I pay prorated rent for the first month or the second month?+
Both arrangements exist. Some landlords collect the prorated partial month up front alongside the deposit; others collect a full first month up front and apply the proration to the second month. It changes when you pay, not how much — the calculation is the same either way.
Does the move-in day count as a day I pay for?+
Yes, by convention you pay for the day you get the keys, and for a move-out you pay through your last day in the unit. This calculator counts both endpoints that way.
Is this prorated rent calculator free?+
Yes — free, no account, and nothing you enter is stored or sent anywhere. The math runs in your browser.
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