Utility Split By Rooms
Calculator
Results
- My share
- 96
- Share (%)
- 40
- Others' share
- 144
- Cost per room
- 48
Household and budget results
| My share | 96 |
| Share (%) | 40 |
| Others' share | 144 |
| Cost per room | 48 |
formula-map diagram
- My share
- 96
- Share (%)
- 40
- Others' share
- 144
- Cost per room
- 48
Cost breakdown
Formula
my share = total bill × (my rooms ÷ total rooms)= 96
Note
This is a simplified model. It applies the stated arithmetic to the figures you enter and ignores inflation, taxes, seasonal variation, interest and any local rules. Use it as a rough guide, not as financial advice.
More in Household and budget
See all →Frequently asked questions
Why split by room count instead of by number of people?+
Splitting by rooms approximates each person's footprint in the home — a larger bedroom or private bathroom generally means more space to heat, cool, and light — which can be fairer than an even per-person split in homes with very different room sizes.
Should shared spaces like the kitchen and living room count toward anyone's share?+
Shared common areas are typically split evenly among all residents in addition to their private room allocation, since everyone uses the kitchen and living room regardless of their bedroom size. Leaving common areas out understates what everyone actually consumes.
What if one room is much bigger than the others?+
Weight rooms by floor area rather than a flat count per room if the size difference is significant, since a room twice the size roughly uses twice the heating or cooling energy, all else equal.
Does this work for utilities other than electricity, like heat or internet?+
It works reasonably well for space-dependent utilities like heating and cooling, but less well for consumption-independent services like internet, which most households simply split evenly since bandwidth use doesn't scale with room size.
How do I handle a room with unusually high energy draw, like a home office with a server or AC unit?+
Treat unusually high-consumption rooms as a special case: estimate that room's extra draw separately and add it as a fixed surcharge to that occupant's share rather than letting the room-count formula understate it.