Rent Split Calculator

Sharing a room, apartment, or house with a friend or anyone can be fun and cost-effective. The first thing that usually comes to mind when sharing a place is how to split the total rent.

Are you curious to know what the split rent could be, and whether utilities are included? That’s why we built a Rent Split Calculator—to help you quickly split rent among roommates, without wasting time on pen-and-paper math or a phone calculator.

In this guide, we will cover:

• What is Rent Split?
• What is a Rent Split Calculator?
• How the Rent Split Is Calculated
• Rent Split Real-World Examples
• And, most importantly, FAQs

What is Rent Split?

Rent split is the process of dividing the total monthly rent of a room, apartment, or house (including rent + utilities) among the people living there. There are different ways to split rent, such as:

• Evenly – Everyone pays the same amount.
• By room size or square footage – Larger rooms cost more.
• By income – A roommate with higher income pays more.
• By couple vs single – If a couple shares one room, they pay more than a single roommate.

Our calculator is designed to calculate the rent split evenly among people.

What is a Rent Split Calculator?

This rent split calculator is a dedicated online tool that helps a group of friends living in the same rented place equally distribute rent among themselves. Here’s how it works:

• Enter your total monthly rent and total utilities.
• Enter the number of people.
• Immediately, you will see how much each person should pay—with and without utilities.

This calculator is for informational purposes only and does not provide financial, legal, or tax advice. For advice specific to your situation, consult a qualified professional.

Now we are going to discuss how the rent is split and the method behind the calculation.

Want to calculate rent split in Excel or Google Sheets?

If you are working in Excel or Google Sheets, you may find our Excel or Google Spreadsheet template helpful. It provides a detailed, step-by-step rent split calculation breakdown, including utilities. See the screenshot below to get a first impression and decide whether it might be helpful for you.

Give it a try by downloading the Excel file or making a copy of the Google Sheets template to calculate the rent split with a per-person and roommate breakdown.

Download Excel SpreadsheetOpen Google Sheets Version

How the Rent Split is Calculated

You can use the following simple formula to calculate the rent split evenly among roommates. Here is the mathematical formula:

Per Person Rent = (Total Rent + Utilities) / Number of Roommates

To put it simply, we are considering a few examples to make things clear so you do not misunderstand:

Rent Split Real-World Examples

1. Even Rent Splitting:

Let's assume a group of three friends rented an apartment for $1,200, and they pay $150 in total utilities. Let's compute:

• Total Rent: $1,200
• Utilities: $150
• Roommates: 3

So, this example shows the per person rent (with utilities) is $450.

2. Split by Income

Imagine a situation in which you and your roommate earn different amounts:

• Roommate James: earns $4,000/month
• Roommate John: earns $2,000/month
• Rent: $1,800

You want to distribute the rent farily to both of you based on income.

James earns $4,000/month which is twice compared to John the $2,000/month, so the Income ratio will be = 2:1.

According to this ratio:

• Roommate James pays $1,200.
• Roommate John pays $600.

You can add utilities if they are included; in this example, we assume rent only.

3. Split by Room Size (Square Footage)

• Master Bedroom: 200 sq ft
• Small Room: 100 sq ft
• Rent: $1,500

1. To calculate rent split by room size, first determine the total room size in square feet by combining master bedroom and small bedroom area:
   • 200 sq ft + 100 sq ft = 300 sq ft
2. Now, divide the each room area by 300 total area to compute the total share of the space:
   • Master bedroom share space: 200 ÷ 300 = 0.67 (67%)
   • Small bedroom share: 100 ÷ 300 = 0.33 (33%)
3. Next, multply the each share decimal form by total rent $1,500.
   • Master bedroom rent = 0.67 × $1,500 = $1,005
   • Small bedroom rent = 0.33 × $1,500 = $500

This indicates the master bedroom person will pay $1,005, and while small bedroom will pay $500.

4. Splitting Rent as a Couple

Let's picture this, a couple living in one room, and a single roommate lives in the other.

Their rent and utilities are:

• Rent: $1,500
• Utilities: $150
• Total: $1,500 + $150 = $1,650

We know there are two units: 

• The couple
• A single roommates

1. First calculate the rent per unit by dividing the total rent included utilities by 2:
   • Per unit rent = $1,650 / 2 = $825
2. In this step, further split the cost among two units:
   • If we distribute between couple, so each will pay: $825 / 2 = $412.50.
   • While the single roommates will solely pay $825.