AC Electricity Bill Per Month IndiaCalculator, Real Data & City-Wise Costs 2026
A 1.5 ton 5-star inverter AC costs ₹880–₹1,350/month depending on your city. A 1 ton AC costs ₹600–₹950/month. A 2 ton AC costs ₹1,200–₹1,900/month. Use our calculator below for your exact bill.
1 Ton 5-Star
₹600–₹950
per month
1.5 Ton 5-Star
₹880–₹1,350
per month
2 Ton 5-Star
₹1,200–₹1,900
per month
Non-Inverter
2× higher
vs inverter
Quick Answer
A 1.5 ton 5-star inverter AC running 8 hours daily consumes approximately 4.5–5.5 units per day (0.8–1.1 units per hour), which costs ₹880–₹1,350 per month depending on your city electricity rate. A 1 ton AC costs ₹600–₹950/month. A 2 ton AC costs ₹1,200–₹1,900/month. Non-inverter ACs cost roughly 40–60% more.
1 Ton (5-Star)
₹600–₹950
8 hrs/day
1.5 Ton (5-Star)
₹880–₹1,350
8 hrs/day
2 Ton (5-Star)
₹1,200–₹1,900
8 hrs/day
AC Electricity Consumption by Tonnage and Star Rating
Real-world consumption data from field-tested installations across India. Costs assume 8 hours daily usage at average ₹7.5/unit tariff. Adjust for your city tariff below.
| AC Type | Power | Units/Hour | Units/Day (8h) | Monthly Units | Monthly Cost |
|---|---|---|---|---|---|
| 1 Ton Non-Inverter 3-Star | 950W | 0.95 | 7.6 | 228 | ₹1,710 |
| 1 Ton Inverter 3-Star | 720W | 0.72 | 5.8 | 174 | ₹1,305 |
| 1 Ton Inverter 5-StarMost Efficient | 550W | 0.55 | 4.4 | 132 | ₹990 |
| 1.5 Ton Non-Inverter 3-Star | 1,450W | 1.45 | 11.6 | 348 | ₹2,610 |
| 1.5 Ton Inverter 3-Star | 1,100W | 1.10 | 8.8 | 264 | ₹1,980 |
| 1.5 Ton Inverter 5-StarBest Value | 850W | 0.85 | 6.8 | 204 | ₹1,530 |
| 2 Ton Non-Inverter 3-Star | 1,950W | 1.95 | 15.6 | 468 | ₹3,510 |
| 2 Ton Inverter 3-Star | 1,500W | 1.50 | 12.0 | 360 | ₹2,700 |
| 2 Ton Inverter 5-Star | 1,200W | 1.20 | 9.6 | 288 | ₹2,160 |
Interactive Calculator
Calculate Your AC Electricity Bill
Enter your AC details and city tariff to get an exact monthly and yearly electricity cost estimate. This calculator uses BEE-certified power consumption data adjusted for real-world inverter curves.
Rate: ₹7.5 per kWh
Daily Cost
₹47
6.2 kWh/day
Monthly Cost
₹1395
186.0 kWh/month
Season (6 mo)
₹8370
1116 kWh
Per Hour
₹5.81
0.78 kWh/hr
Switch to 5-Star & Save
₹0
0% less over 6 months
Yearly Estimate
12 months × 8 hrs/dayApprox 2232 kWh consumed per year
Cost by Star Rating (1.5 Ton)
Compares 6-month seasonal cost across all star ratings for selected tonnage and type.
A 1.5 Ton 5 Star Inverter Split running 8 hours daily in Delhi costs approximately ₹1395 per month and ₹16,740 per year.
1 Ton vs 1.5 Ton vs 2 Ton AC Electricity Bill
Tonnage directly determines how many units your AC consumes each hour. Most Indian bedrooms (120–150 sq ft) only need a 1.5 ton unit. A 2 ton AC for the same room wastes 20–30% more electricity with almost no cooling improvement.
1 Ton
Up to 120 sq ft
Monthly Bill (8 hrs/day, ₹7.5)
5-Star: ₹900–₹1,260
3-Star: ₹1,080–₹1,440
Best for: Bedrooms, small offices
1.5 Ton
Most Common120–180 sq ft
Monthly Bill (8 hrs/day, ₹7.5)
5-Star: ₹1,440–₹1,800
3-Star: ₹1,620–₹2,160
Best for: Master bedrooms, living rooms
2 Ton
180–240 sq ft
Monthly Bill (8 hrs/day, ₹7.5)
5-Star: ₹1,800–₹2,340
3-Star: ₹2,340–₹3,060
Best for: Large halls, open-plan spaces
| Comparison | 1 Ton 5-Star | 1.5 Ton 5-Star | 2 Ton 5-Star |
|---|---|---|---|
| Units per hour | 0.5–0.7 | 0.8–1.0 | 1.0–1.3 |
| Daily units (8h) | 4.0–5.6 | 6.4–8.0 | 8.0–10.4 |
| Monthly units | 120–168 | 192–240 | 240–312 |
| Monthly bill (₹7.5) | ₹900–₹1,260 | ₹1,440–₹1,800 | ₹1,800–₹2,340 |
| Yearly bill (₹7.5, 6mo) | ₹5,400–₹7,560 | ₹8,640–₹10,800 | ₹10,800–₹14,040 |
| Yearly bill Mumbai (₹9.5) | ₹6,840–₹9,576 | ₹10,944–₹13,680 | ₹13,680–₹17,784 |
Inverter vs Non-Inverter AC Electricity Consumption
Inverter ACs use 30–40% less electricity than non-inverter models. A 1.5 ton 5-star inverter AC costs ₹1,440–₹1,800/month to run. The same non-inverter model costs ₹2,610–₹3,240/month — nearly double.
Inverter AC
Variable speed compressor
- Compressor runs at variable speed based on cooling demand
- 30–40% less electricity than non-inverter
- No power spikes — smooth, consistent cooling
- Reaches target temperature faster, then maintains it efficiently
- Quieter operation — no on/off compressor noise
1.5 Ton 5-Star Monthly Bill (8 hrs)
₹1,440–₹1,800
In Delhi at ₹7.5/unit
Non-Inverter AC
Fixed speed — on/off cycling
- Compressor runs at full power, then completely shuts off
- 30–40% more electricity than inverter
- Power spike every time compressor restarts
- Temperature fluctuates — feels colder when on, warmer when off
- Louder — compressor cycling creates noticeable noise
1.5 Ton 3-Star Monthly Bill (8 hrs)
₹2,610–₹3,240
In Delhi at ₹7.5/unit
| Metric | Inverter 5-Star | Non-Inverter 3-Star | Difference |
|---|---|---|---|
| Power consumption | 850W | 1,450W | -41% |
| Units/hour | 0.85 | 1.45 | -41% |
| Monthly bill (8h/day) | ₹1,530 | ₹2,610 | -41% |
| 6-month seasonal cost | ₹9,180 | ₹15,660 | ₹6,480 saved |
| 3-year total cost | ₹54,540 | ₹93,960 | ₹39,420 saved |
The verdict: A 5-star inverter AC saves ₹6,480 in electricity over just one 6-month summer season compared to a 3-star non-inverter. Over 3 years, the savings are ₹39,420 — which is typically more than the price premium you pay for the inverter model. Plus, inverter ACs last longer because the compressor does not suffer from repeated start-stop stress.
AC Electricity Bill by City in India
Your AC electricity bill depends heavily on your city's per-unit tariff. Mumbai residents pay up to 70% more than Kolkata residents for the same AC usage. Below is the exact monthly and yearly cost for a 1.5 ton 5-star inverter AC running 8 hours daily across major Indian cities.
| City | Provider | Tariff/kWh | Monthly Bill | 6-Month Season | Notes |
|---|---|---|---|---|---|
| Mumbai | Adani / BEST | ₹9–12 | ₹1188–1620 | ₹7,128–₹9,720 | Highest residential rates |
| Delhi | Tata Power-DDL | ₹7.5–9 | ₹990–1215 | ₹5,940–₹7,290 | Standard residential slab |
| Bangalore | BESCOM | ₹7–8.5 | ₹924–1147 | ₹5,544–₹6,882 | Standard residential slab |
| Chennai | TNEB | ₹6.5–7.5 | ₹858–1013 | ₹5,148–₹6,075 | Standard residential slab |
| Kolkata | CESC | ₹5.5–7.5 | ₹726–1012 | ₹4,356–₹6,072 | Lowest among metros |
| Hyderabad | TSNPDCL | ₹6.5–8 | ₹858–1080 | ₹5,148–₹6,480 | Standard residential slab |
| Pune | MSEDCL | ₹8–9.5 | ₹1056–1283 | ₹6,336–₹7,695 | Standard residential slab |
| Ahmedabad | Torrent Power | ₹6–7.5 | ₹792–1013 | ₹4,752–₹6,075 | Standard residential slab |
Why Mumbai is the most expensive
Mumbai residential tariffs range from ₹9/unit for the first 100 units to ₹12/unit beyond 300 units. A 1.5 ton AC running 8 hours daily consumes ~204 kWh/month, pushing most households into the highest slab. This makes Mumbai 70% more expensive than Kolkata for the same cooling.
Why Kolkata is the cheapest metro
CESC Kolkata maintains residential rates starting at ₹5.5/unit, with even high-consumption slabs rarely exceeding ₹7.5/unit. This means a 1.5 ton 5-star inverter AC costs just ₹726–₹1,012/month in Kolkata — nearly half of what the same usage costs in Mumbai.
Real AC Electricity Bill Examples — Monthly and Yearly
These are actual estimated bills for common household scenarios across India. Your bill will vary based on city tariff, room conditions, and usage patterns.
Couple in 1BHK, Delhi
Used evenings only, thermostat at 26°C
Family of 4, Bangalore
Master bedroom, 8pm–4am daily
Small office, Mumbai
10am–8pm, commercial rates higher
Large family, Kolkata
Living room, multiple occupants
Top-floor flat, Jaipur
West-facing, extra load factor applied
Retired couple, Chennai
Afternoon nap only, occasional evenings
How to estimate your own bill
Find your AC tonnage and star rating on the nameplate or manual
Check your electricity bill for the per-kWh rate (usually ₹5–₹12)
Multiply daily hours × 30 days × units/hour from the table above
Or use our calculator above for instant results
How to Reduce Your AC Electricity Bill by 40%
These six techniques are proven to reduce AC electricity consumption. Combined, they can cut your monthly bill from ₹2,000 to ₹1,200 or lower — without buying a new AC.
Set thermostat to 24–26°C
Saves 25–40% electricityEvery 1°C above 24°C saves roughly 6% power. At 26°C your room is comfortable and your compressor works at low speed. At 18°C, the compressor runs at full power continuously.
Clean the filter every 2 weeks
Saves 5–15% electricityA clogged filter restricts airflow, forcing the compressor to work harder. In Indian dust conditions, clean the filter every 14 days during summer. Takes 5 minutes, costs nothing.
Use ceiling fan with AC
Saves 8–12% electricityA ceiling fan circulates cool air evenly, so you can raise the thermostat by 1–2°C without losing comfort. The fan uses just 50–80W versus 850–1,450W for the AC.
Seal doors and windows
Saves 10–20% electricityGaps under doors and around windows let cool air escape and hot air enter. Use door sweeps and window seals — available for ₹200–₹500 — to cut your bill significantly.
Service the AC before summer
Saves 10–15% electricityAnnual servicing cleans the condenser coils, checks refrigerant levels, and ensures optimal airflow. A low refrigerant level alone can increase power use by 20%.
Use inverter mode on non-inverter ACs
Partial savings possibleIf you already own a non-inverter AC, avoid constant on/off cycles. Set the thermostat 2–3°C higher than your target so it runs longer at each cycle, which is slightly more efficient.
₹2,000+
Typical monthly AC bill (1.5 ton, 8 hrs/day)
₹1,100–₹1,400
After applying all 6 tips above
₹7,200+
Annual savings on electricity
Best Low Electricity ACs in India 2026 — Top 5 by ISEER
If your goal is to minimize your monthly electricity bill, these are the most efficient 1.5 ton inverter ACs you can buy in India. Ranked purely by ISEER rating — the single metric that determines real-world power consumption.
Panasonic CS/CU-NU18BKY5WX
Highest ISEER in IndiaLG US-Q19YNZE3
Best overall valueDaikin MTKM50UV16
Best build qualityVoltas 185V Vertis
Best under ₹40KSamsung Bespoke AI
Best smart featuresWhy ISEER matters more than star rating
A 5-star label only tells you the AC meets a minimum threshold. Two different 5-star ACs can have very different ISEER values — and very different electricity bills. The Panasonic CS/CU-NU18BKY5WX with ISEER 5.80 costs ₹880–₹1,000/month. A 5-star AC with ISEER 4.80 costs ₹1,100–₹1,260/month for the same usage. That ₹200–₹260 monthly difference adds up to ₹14,400–₹18,720 over 6 years.
Frequently Asked Questions About AC Electricity Bills
Answers to the most common questions about AC electricity consumption, monthly costs, and how to reduce your bill. Based on real field data from HVAC technicians across India.
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This article has been reviewed by an HVAC professional with real-world experience to ensure accuracy and practical usefulness. All recommendations are based on hands-on field work, not manufacturer spec sheets alone.
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