Electricity bill split calculator
Split this month’s bill fairly: the base (what the flat uses without ACs) is shared equally and the extra is split by how many hours each person ran their AC.
How it works
- Base: what the flat costs to run without ACs (fridge, lights, fans, geyser, router). Use a winter bill. It’s split equally.
- Extra: this month’s bill minus the base: the cost of the ACs. It’s split by AC hours a day, so someone who runs it all night pays more than someone who uses it on weekends.
With the default numbers (a ₹4,800 May bill, a ₹1,800 base, two people running ACs 8 hours a night and one with no AC), A and B pay ₹2,100 each and C pays ₹600.
Don’t have a base bill?
Estimate it from units instead. A 1.5-ton split AC typically uses about 1.2–1.8 units an hour; multiply by hours and your per-unit rate. For example: 8 h × 30 nights × 1.4 units × ₹8 ≈ ₹2,690 for one AC in a month. Subtract the ACs’ estimate from the bill to get the base.
Why bills jump in summer
Most state tariffs are slab-based, so extra units are charged at the highest rate. That’s why splitting the extra by AC use is fairer than splitting the whole bill by hours. Read the full guide: how to split the electricity bill between roommates.
Questions
How do roommates split electricity when one has an AC?
Split a base amount (a month without AC) equally, and split the extra by how much each person used their AC.
How many units does an AC use?
About 1.2–1.8 units an hour for a typical 1.5-ton split AC; inverter models use less once the room is cool.
Is my data saved?
No. The calculator runs only in your browser.
