Shared Accommodation Bill-Split Calculator
Rent, DEWA, chiller and internet — split fairly across roommates, evenly or by room size.
Simple proportional split based on the figures and weights you enter — not a legal or binding allocation. Agree the split method with your roommates before relying on it, and revisit the weights if the room arrangement changes.
Equal split vs weighted by room
Equal split divides every cost evenly by headcount — simplest, and fair when bedrooms are similar in size and quality. Weighted split lets you assign each person a weight (1.0 for a standard room, higher for a bigger master/ensuite room), so someone with meaningfully more space pays a proportionally larger share. There's no official rule for the weight to use — 1.3 to 1.5 for a modest size difference, up to 2.0 for a dramatically larger master room, are common real-world starting points.
This covers ongoing bills, not the move-in cash
This tool splits the recurring monthly costs of a shared unit. For the one-time cash needed before moving in — landlord security deposit, agency commission, Ejari, DEWA connection fees and the chiller deposit — use this site's Dubai Move-In Cost Calculator instead.
Frequently Asked Questions
Is an equal split always the fairest way to divide bills?
Not necessarily — it depends on the rooms themselves. Equal splitting works well when bedrooms are roughly the same size and quality. If one person has a much larger master bedroom with an ensuite bathroom while others share a smaller room or a standard single, many households consider a weighted split fairer, where the bigger room carries a higher share. There's no single rule here — it comes down to what the household agrees is reasonable.
What weight should I give a master bedroom vs a standard room?
There's no fixed convention, but a common real-world starting point is 1.5 for a master/ensuite room against 1.0 for a standard room — meaning the master-room occupant pays 50% more of their proportional share than someone in a standard room. Some households use 1.3 for a modest size difference, or as high as 2.0 if the master bedroom is dramatically larger or has its own balcony or bathroom. Agree on a weight everyone is comfortable with before moving in, and revisit it if the room allocation changes.
Should DEWA and chiller be split the same way as rent?
Many shared households do split all recurring costs — rent, DEWA, chiller, internet — using the same method (equal or weighted) for simplicity, since it avoids re-negotiating each bill separately. Some households instead split rent by room weight (since a bigger room is the direct benefit) but split utilities equally (since everyone uses similar amounts of water, electricity and internet regardless of room size). Either approach is common — this calculator lets you apply one split method to everything at once for simplicity.
What if someone moves out partway through the month?
This calculator estimates a full month's fair share per person — for a partial month, prorate that person's share by the number of days they actually stayed, and redistribute the remaining days' cost among whoever covered the gap. Many shared households handle this with a simple day-count adjustment applied after the fact, rather than trying to build it into the standing monthly split.
Does this include the one-time move-in costs like the security deposit?
No — this tool only covers ongoing monthly costs (rent, DEWA, chiller, internet). For one-time move-in cash (landlord security deposit, agency commission, Ejari, DEWA connection fees, chiller deposit), use this site's Dubai Move-In Cost Calculator instead, which is built specifically for that upfront lump sum.
How do we handle someone who barely uses the AC or internet?
In practice, almost every shared household still splits utilities evenly or by the same weighting as rent, rather than metering individual usage room by room — UAE utility bills for a shared unit come as one combined DEWA and chiller bill, not itemised per person, so there's no practical way to measure it precisely. If usage differences are a genuine source of friction, some households agree a flat adjustment (e.g. the heavy AC user pays an extra fixed amount) rather than trying to calculate exact consumption.