What is a rent calculator?
A Rent Calculator adds your rent and utilities together to show your total monthly (or yearly) housing cost, and splits it evenly between everyone sharing the home. It is useful for renters setting a budget and for roommates who want a fair, simple split.
How to use the rent calculator
- Choose Monthly or Yearly.
- Enter your rent.
- Enter your utilities, such as electricity, gas, water and internet.
- Enter the number of people sharing the cost.
The total and the amount per person update automatically as you type.
Rent calculation formula
Total housing cost = Rent + Utilities
Cost per person = Total housing cost ÷ Number of people
Example
Two roommates rent an apartment for $1,800 a month and pay about $250 a month for utilities. The total is $2,050 a month, or $1,025 each. Over a year, that is $24,600 in total, or $12,300 per person.
How much rent can you afford?
A common guideline is to keep rent at or below about 30% of your gross monthly income. On a $5,000 monthly income, that is $1,500. Use it as a starting point, not a rule: high debt payments or other costs may mean you need a lower figure.
Tips
- Ask the landlord or previous tenants what utilities typically cost before you sign.
- If rooms are different sizes, roommates may prefer to split rent unevenly and utilities evenly.
- Budget separately for renter’s insurance, parking and the security deposit, which this calculator does not include.
Who is it for?
- College students
- First-time renters
- Families
- Roommates
- Anyone planning a move
Frequently Asked Questions
A common guideline is to keep rent at or below about 30% of your gross monthly income. On a $60,000 salary ($5,000 a month), that is about $1,500 a month.
Yes. Enter your electricity, gas, water and internet costs in the utilities box and they are added to the rent.
Simply enter the total number of people sharing the property. The calculator automatically divides the total housing cost equally among all occupants.
No. The calculator covers rent and utilities only. If you pay for parking or insurance every month, you can add those amounts to the utilities box to include them in the total.
Absolutely. It helps you understand your total housing expenses so you can create a realistic monthly budget and avoid overspending.
Disclaimer: This calculator gives estimates for general information only. It is not financial, tax or legal advice. Results depend on the numbers you enter and on simplified assumptions, so your actual figures may differ. Check important decisions with a qualified professional or the official source.
Related Calculators
Thinking about your wider housing budget? These calculators can help.
Written by Sharp Calculator Team — we build and test every calculator on this site, checking each formula against hand-worked examples and official sources. Last updated: October 2026.
