Master Electricity Bill Calculator:
Take Control of Your Energy Costs
Add your appliances, pick your state, and watch your bill calculate in real-time — with slab warnings, AC impact analysis, and 'What If' savings scenarios.
Your AC accounts for 64% of your total bill — the dominant load in your home
High slab — you're paying peak rates on all units
434 units consumed this month
How Your Bill is Calculated: Fixed Charges, Surcharges, and Slabs
Most people don't know that crossing a slab boundary reprices ALL your units — not just the extra ones.
Fixed Charges
A flat monthly fee (₹40–₹130) regardless of consumption. Covers meter rent and distribution infrastructure. Cannot be reduced by using less electricity.
Slab-Based Energy Charges
The first X units are cheap, the next Y units are more expensive. Critically, in most states, crossing a slab reprices ALL units — not just the extra ones above the threshold.
Surcharges & Taxes
FPPCA (fuel adjustment), regulatory surcharge (5–8%), and electricity duty are added on top of energy charges. These can add ₹0.50–₹1.50/unit to your effective rate.
Slab Cheat Sheet: Major Metro Rates
How your bill is calculated in Delhi, Mumbai, Bangalore, and Chennai — with AC impact analysis.
A 1.5T 5-star AC (8h/day) adds ~180 units. Most Delhi homes cross 400 units in summer.
Mumbai's high slab at ₹12.40/unit is among India's most expensive. AC users easily cross 300 units.
Bangalore's mild climate means fewer AC hours, but the ₹8.35–9.50 upper slabs still sting heavy users.
Chennai has India's most generous subsidy. Even heavy AC users rarely pay more than ₹3.50–4.60/unit.
Now That You Know Your Bill — Fix It
Use these tools to find exactly where your money is going and how to cut it.
Frequently Asked Questions
Everything you need to know about your electricity bill
In summer, your AC runs longer and harder to fight the heat. A 1.5T AC that runs 6h/day in winter might run 10–12h/day in summer — nearly doubling its electricity consumption. Additionally, higher total units push you into more expensive slabs, meaning ALL your units get repriced at the higher rate, not just the extra ones.