AC Electricity Cost in Mumbai (Maharashtra) — 2026
Mumbai's tropical coastal climate creates one of India's longest AC seasons. With humidity regularly exceeding 80%, ACs work overtime on dehumidification. The high residential tariff of ₹9.5/kWh makes energy efficiency critical — a 5-star inverter can save over ₹5,000 per year versus a 3-star unit.
Quick Answer
A 1.5 ton 5-star inverter AC running 8 hours daily in Mumbai costs approximately ₹1180 per month. A 3-star unit costs ₹1620. The yearly electricity bill for a 5-star unit is roughly ₹9440.
Monthly AC Bill Estimate in Mumbai
Based on 8 hours daily usage at ₹9.5/kWh residential tariff.
| AC Type | 1 Ton | 1.5 Ton | 2 Ton |
|---|---|---|---|
| 5-Star Inverter | ₹720/mo | ₹1180/mo | ₹1680/mo |
| 3-Star Non-Inverter | ₹980/mo | ₹1620/mo | ₹2280/mo |
| Yearly Savings (5-Star vs 3-Star) | ₹3120 | ₹5280 | ₹7200 |
Electricity Tariff Comparison Across Indian Cities
Residential tariff per kWh for AC usage slab.
| City | State | Tariff (₹/kWh) | Climate | Peak Months |
|---|---|---|---|---|
| Lucknow | Uttar Pradesh | ₹6.5 | Hot Dry / Continental | April – July |
| Ahmedabad | Gujarat | ₹6.8 | Hot Dry / Very Hot | March – June |
| Chennai | Tamil Nadu | ₹7.0 | Hot & Very Humid | March – November |
| Chandigarh | Punjab & Haryana | ₹7.0 | Hot Dry / Continental | April – July |
| Indore | Madhya Pradesh | ₹7.1 | Hot Dry / Continental | March – June |
| Bangalore | Karnataka | ₹7.2 | Mild / Moderate | March – May |
| Visakhapatnam | Andhra Pradesh | ₹7.2 | Hot & Humid / Coastal | March – October |
| Jaipur | Rajasthan | ₹7.4 | Desert / Extreme Dry Heat | April – July |
| Delhi | Delhi | ₹7.5 | Hot Dry / Extreme Heat | April – July |
| Kochi | Kerala | ₹7.5 | Hot & Very Humid / Tropical | February – November |
| Nagpur | Maharashtra | ₹7.5 | Extreme Dry Heat | March – June |
| Hyderabad | Telangana | ₹7.8 | Hot Dry | March – June |
| Kolkata | West Bengal | ₹8.0 | Hot & Humid | April – October |
| Pune | Maharashtra | ₹9.0 | Hot & Moderately Humid | March – October |
| Mumbai | Maharashtra | ₹9.5 | Hot & Humid | March – October |
Recommended AC Tonnage for Mumbai
Based on local climate, room size, and heat load factors.
Standard Rooms
1.5 ton for 140–160 sq ft
Ideal for most apartments and homes in Mumbai.
Large or West-Facing
2 ton for rooms above 180 sq ft or west-facing walls
Extra capacity handles 32–38°C heat load.
Top Floor / Terrace
Add 0.5 ton to standard recommendation. A 150 sq ft top-floor room in Mumbai needs a 2-ton unit.
Roof heat transfer significantly increases cooling load.
Best AC Types for Mumbai Climate
Hot & Humid conditions require specific AC features.
Looking for the best AC model? See our guide to the best ACs in India ranked by real-world performance, or check the best AC for hot climate if you live in an area with extreme heat.
Frequently Asked Questions — AC Cost in Mumbai
Straight answers based on Mumbai's tariff and climate data.
How much does AC cost per month in Mumbai?
A 1.5 ton 5-star inverter AC running 8 hours daily in Mumbai costs approximately ₹1,180 per month. A 3-star unit costs ₹1,620. Due to Mumbai's high humidity, actual consumption runs 10–15% above BEE lab estimates.
Which AC star rating is best for Mumbai?
Given Mumbai's high tariff (₹9.5/kWh) and 8-month AC season, a 5-star inverter AC is essential. The payback period versus a 3-star is under 14 months. Look for models with strong dehumidification modes.
Does Mumbai humidity damage ACs faster?
Yes. Coastal salt and moisture corrode condenser coils 2–3x faster than inland cities. Copper condensers with anti-corrosion coatings (Ocean Black, ShieldBlu+) are strongly recommended. Annual deep cleaning is essential.
What is the yearly AC electricity bill in Mumbai?
For a 1.5 ton 5-star inverter AC used 8 hours daily across 8 months, the yearly bill is approximately ₹9,440. A 3-star unit would cost ₹12,960 yearly. The ₹3,520 annual difference pays for the price premium within 18 months.
Related Calculators & City Guides
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AC Installation Cost in Mumbai
Fitting charges including piping and accessories.
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