How much money do you save with a roommate?

The average person saves $500-800/month with a roommate — $6,000-10,000 per year. Savings come from split rent (biggest factor), shared utilities, bulk grocery buying, and shared subscriptions. Our calculator uses your specific numbers for an exact figure.

What expenses can you split with a roommate?

Rent (50-60% of savings), utilities (electricity, gas, water, internet), household supplies, streaming subscriptions, and sometimes groceries. Some costs don't change much (food, personal items). Our calculator breaks down savings by category.

How much would roommate savings be worth if invested?

At $700/month savings invested at 7% average market return: $50,000 after 5 years, $120,000+ after 10 years. The compound growth makes a huge difference. Our calculator shows your projected investment growth using historical market returns.

Is it worth living with a roommate to save money?

Financially, almost always yes. The average $7,000/year savings invested over 10 years could grow to $100,000+. The question is whether the privacy/lifestyle tradeoff is worth it. Our calculator helps you see the exact financial impact.

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Roommate Savings Calculator

Thinking about getting a roommate? This calculator shows the complete financial picture — how much you save on rent, utilities, groceries, and subscriptions. Then projects those savings over 5 years and shows what they'd be worth if invested over 10 years at market returns.

By Baljeet AulakhUpdated February 2026Reviewed for accuracy

Find out exactly how much money you save by living with roommates instead of alone. Compare solo rent, utilities, and grocery costs against shared living expenses to see your monthly, annual, and five-year savings. Then see what those savings would grow to if invested over ten years at average market returns — the true financial impact of choosing roommates over solo living.

Solo Living

Solo Rent

Full rent if living alone

Solo Utilities

Electric, gas, water, internet

Solo Groceries

Monthly grocery bill living alone

With Roommates

Your Share of Rent

Your portion of the total rent

Your Share of Utilities

Your share of split utilities

Your Share of Groceries

Your share of shared grocery runs

City

Optional — for your reference

Number of Roommates

2 people total in the household

How This Calculator Works

Enter Your Details

Fill in amounts, people, and preferences. Takes under 30 seconds.

Get Fair Results

See an instant breakdown with data-driven calculations and Fairness Scores.

Share & Settle

Copy a shareable link to discuss results with everyone involved.

Frequently Asked Questions

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