Utility Bill Splitter — Split Electricity, Internet & Water Fairly
Split every household utility fairly — equal shares, by room size, or by actual usage. Free, private, no signup.
Open Free CalculatorThe fairest way depends on usage patterns. A flat equal split works when everyone spends similar time at home. Splitting by room size (or by income) is fairer when rooms differ greatly. For internet and streaming, an equal split is standard. Spllito's utility bill splitter supports all three methods.
How to Use the Utility Bill Splitter
Here's exactly how it works — usually under a minute from open to settled.
List your utilities
Add electricity, internet, water, gas, streaming — any recurring shared cost.
Choose a method
Equal split, by room size, or by individual usage.
Enter amounts
Type each month's bill totals in any currency.
Settle up
Spllito shows exactly who owes whom — with the fewest transactions.
Tips for Splitting Fairly
Set a monthly settle-up date
Pick the 1st or 15th of each month. A predictable cadence prevents awkward reminders.
Save bills in a shared folder
Drop PDFs in a shared Google Drive — transparency kills disputes.
Split by room for fairness
If one bedroom is 20% larger, splitting rent and heating by room size is fairer than 50/50.
Usage-based for AC heavy rooms
If one roommate runs AC constantly in summer, a 60/40 split on electricity is reasonable.
Equal split vs. usage-based split — which is fair?
Equal splits are simplest and work when lifestyles are similar. Usage-based splits are fairer when one roommate works from home, runs AC, or has much larger appliances. Spllito handles both without awkward spreadsheets.
Frequently Asked Questions
How do you split utility bills between 3 roommates?
Add all 3 names, enter each utility's total, choose equal or by-room split, then hit Calculate. Spllito shows each person's share and optimal settlement.
Should we split utilities equally or by room size?
Equal splits are simplest. By-room splits are fairer when bedrooms vary significantly in size. A 60/40 split between a primary and secondary bedroom is common.
Do I split internet equally with my roommate?
Yes — internet is typically split equally regardless of usage because bandwidth is shared and speed doesn't change per person.
What if one roommate uses more electricity?
Switch to a usage-based split. If one person runs AC or electric heaters heavily, adjust their share up (e.g., 55/45 or 60/40). Spllito lets you weight each person's share.
How do I track monthly utility bills?
Use Spllito each month — re-enter the bills, pick the split method, and save the summary screenshot to your group chat. No account needed.
Is splitting utilities legally required?
It depends on your lease. Some leases bundle utilities, others require tenants to split. Always read the lease before assuming.
How do I split utilities if one person moves out mid-month?
Prorate: take each bill × (days they lived there ÷ days in month), add that to the leaving person's share, and split the remainder among the rest.
Related Free Calculators & Guides
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