Utility Bill Split Calculator
Split electric, gas, water, and internet bills fairly between roommates or family members equally, by bedroom square footage, or by custom percentage shares.
Household Utility Invoices
Equitable Utility Allocation Formula
Person Share ($) = Total Bill Amount × (Room Sq Ft ÷ Total Living Sq Ft) [or Total ÷ Number of People]- Equal Split: Divides the exact gross bill evenly, automatically reconciling penny rounding remainders.
- Square Footage Split: Proportionate allocation for roommates occupying different sized bedrooms (e.g., master suite with private bath vs small bedroom).
- Custom Percentage: Configurable shares reflecting work-from-home habits or EV charging adjustments.
Step-by-Step Worked Example
Calculation Steps:
How to Use This Calculator
Assumptions & Limitations
- All individual allocated shares sum precisely to the total utility bill amount.
- Any fractional cents are assigned to the primary account holder.
Frequently Asked Questions
How should roommates fairly split utility bills if one works from home?
Common compromises include splitting base utilities (water, gas, trash) equally, while having the remote roommate pay a slightly higher percentage (e.g. 5% to 10% extra) on the electric and high-speed internet bills to account for daytime AC, heating, and computer loads.
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