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Prorated Rent Calculator

Calculate the exact rent amount for partial months.

30 Days 31 Days 28 Days (February) 29 Days (Leap Year)
Count from the day you move in until the end of the month.

Prorated Total:

$0.00
Daily Rate: $0.00

Understanding Prorated Rent

Prorated rent is the amount of rent a landlord charges a tenant for a partial month of occupancy. This typically occurs when a tenant moves in after the first of the month or moves out before the last day of the month. Instead of paying for a full 30 or 31 days, the tenant only pays for the specific days they have access to the property.

The Prorated Rent Formula

Our calculator uses the standard daily rate method to ensure accuracy. The formula is broken down into two simple steps:

  1. Determine the Daily Rate: Monthly Rent ÷ Total Days in the Month = Daily Rate.
  2. Calculate Total Owed: Daily Rate × Number of Days Occupied = Prorated Rent.

Example Calculation

Imagine you are moving into a new apartment on the 15th of October. The monthly rent is $2,000.

  • Monthly Rent: $2,000
  • Days in October: 31
  • Days Occupied: 17 (from the 15th to the 31st)
  • Calculation: ($2,000 / 31) * 17 = $1,096.77

Important Considerations for Tenants

Always check your lease agreement before assuming how rent will be prorated. While most landlords use the "actual days in the month" method (as used in this calculator), some may use a flat 30-day month regardless of the actual calendar. Additionally, ensure you clarify whether the move-in day itself is included in the billing; usually, the day you receive keys is counted as day one of your occupancy.

function calculateProratedRent() { var monthlyRent = document.getElementById("monthlyRent").value; var daysInMonth = document.getElementById("daysInMonth").value; var daysOccupied = document.getElementById("daysOccupied").value; var resultDiv = document.getElementById("rentResult"); var amountDisplay = document.getElementById("proratedAmount"); var rateDisplay = document.getElementById("dailyRate"); // Input Validation if (monthlyRent === "" || monthlyRent <= 0) { alert("Please enter a valid monthly rent amount."); return; } if (daysOccupied === "" || daysOccupied daysMonthNum) { alert("Days occupied cannot exceed the total days in the month."); return; } // Logic var dailyRate = rentNum / daysMonthNum; var proratedTotal = dailyRate * daysOccNum; // Output Formatting amountDisplay.innerHTML = "$" + proratedTotal.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); rateDisplay.innerHTML = "Daily Rate: $" + dailyRate.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); // Show Result resultDiv.style.display = "block"; }

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