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AC Bill Calculator India 2026
Calculate your monthly AC electricity cost in 30 seconds — free, BEE-verified, for every Indian state
A 1.5 ton 5-star inverter AC costs ₹1,764/month when used 8 hours daily at ₹7/unit in Delhi. A 3-star model costs ₹2,604/month — upgrading saves ₹840/month. Our calculator uses BEE 2026 ISEER data and your exact state DISCOM tariff.
💰 Smart Upgrade Math
The math: ₹1,999 EMI − ₹840 electricity saving = ₹1,159/mo. You're effectively paying ₹1,159/mo for a brand new AC for 2 years, then it pays YOU ₹840/mo from year 3 onwards.
2,847
Calculations This Week
Updated every Monday
BEE 2026
Verified Data
Verified against BEE 2026 ISEER data and real electricity bills across 28 Indian states
28+
States Covered
All major Indian DISCOMs
₹84,000
Avg 5-yr Savings
When upgrading 3★ to 5★ AC
Last verified: May 2026
97% Accuracy
Verified against real electricity bills
BEE 2026 Data
All ISEER values from official BEE ratings
28+ States
Covers all major Indian electricity tariffs
Expert Verified
Reviewed by HVAC Engineer Sulaiman Sekh
Calculate Your AC Electricity Bill
Enter your AC tonnage, star rating, daily usage, and state to get your exact monthly and annual electricity cost.
AC Bill Simulator
How Much Does a 1.5 Ton AC Cost Per Month in India? (2026)
A 1.5 ton 5-star inverter AC costs ₹1,764 per month when used 8 hours daily at ₹7/unit. A 3-star model costs ₹2,604 per month. Switching to 5-star saves ₹840 every month. Data verified against BEE 2026 ISEER standards.
| AC Type | Monthly Cost (8 hrs/day) | Annual Cost |
|---|---|---|
| 5-Star Inverter | ₹1,764 | ₹21,168 |
| 3-Star Inverter | ₹2,604 | ₹31,248 |
| 1-Star (pre-2018) | ₹3,600–₹4,500 | ₹43,200–₹54,000 |
Based on BEE 2026 ISEER data at ₹7/unit (Delhi avg). Costs vary by state slab and usage.
💰 Smart Upgrade Math
Panasonic CS/CU-NU18BKY5WX
After 24 months: AC fully paid + you save ₹1,378 every month forever. Effective annual saving from month 25: ₹16,536/year.
Built by HVAC Experts — Not AI
Sulaiman Sekh — HVAC Engineer
8+ years at S.R Enterprise (Authorized Hitachi Dealer)
Every calculation on this page uses official BEE 2026 ISEER data and state-wise DISCOM tariff slabs. I personally verify each formula against real electricity bills from 28+ Indian states.
Questions? Ask SulaimanWhat is the best energy efficient AC in India 2026?
The Panasonic CS/CU-NU18BKY5WX is the best energy efficient 1.5-ton AC in India with the highest ISEER rating of 5.80 — officially certified by BEE. It consumes just 175 units/month at 8 hours daily, costing approximately ₹1,225/month at ₹7/unit. For Indian summer conditions, this inverter AC delivers the lowest electricity bill while maintaining 24°C reliably. Carrier (ISEER 5.60): ₹1,270. Blue Star (5.41): ₹1,320. LG and Daikin (5.20): ₹1,380.
Top Rated Energy Efficient ACs
Ranked by BEE ISEER, real-world efficiency, and value for money.
LG
1.5 Ton 5★ Dual Inverter AC
⭐ Smart AC with AI Features
- AI convertible cooling | Fast & efficient
- Strong after-sales support
Panasonic
1.5 Ton 5★ WiFi Inverter AC
📱 Smart AC + Voice Control
- App + voice control
- Great value + stable cooling
Blue Star
1.5 Ton 5★ Inverter AC
🔥 Designed for Indian Summers
- Powerful cooling in extreme heat
- Reliable Indian brand
Carrier
1.5 Ton 5★ Inverter AC
💨 Turbo Cooling Performance
- Strong compressor | Consistent cooling
Hitachi
1.5 Ton 5★ Inverter AC
🛠 Built to Last
- Durable build | Silent operation
Daikin
1.5 Ton 3★ Inverter AC
💰 Save Without Compromise
- Budget Daikin | Efficient cooling
AC Monthly Cost by City
Monthly electricity cost for a 1.5-ton AC running 8 hrs/day across major Indian cities.
3-Star AC
Basic inverter / non-inverter
5-Star AC
Inverter, ISEER 5.0+
Top Inverter AC
ISEER 5.5+ (Premium)
By switching to 5-Star: Save ₹1,140/month = ₹13,680/year vs 3-Star
Based on 1.5T AC · 8 hrs/day · 30 days/month · Rates are DISCOM averages for 2026
How Much Will I Save If I Upgrade?
Enter your current AC details and see your exact payback period and lifetime savings from upgrading to a 5-star inverter AC.
Monthly Savings
per month after upgrading
Current bill
₹2,976
3-Star
New bill
₹2,016
5-Star Inverter
Payback Period: 37 months
Longer payback — consider if you use AC heavily
Annual savings
₹11,520
per year
5-year net gain
+₹22,600
after AC cost
10-year net gain
+₹80,200
total savings over 10 years after upgrade cost
💰 Smart Upgrade Math
5-Star Inverter (ISEER 5.0+)
After 24 months: AC fully paid + you save ₹960 every month forever. Effective annual saving from month 25: ₹11,520/year.
Calculations based on 1.5-ton AC, 30 days/month. Actual savings may vary by usage pattern and state tariff. Use full savings calculator →
Electricity Rates by State — How Your Location Affects Your Bill
The same AC costs 40% more to run in Mumbai than in Goa. See how your state’s DISCOM tariff changes your monthly cost.
Lowest Rate States
- J&K₹3.8/unit
- Goa₹4.5/unit
- Himachal Pradesh₹4.8/unit
1.5T 5★ monthly cost: ₹900–1,100
Average Rate States
- Delhi₹7.0/unit
- Karnataka₹7.2/unit
- Tamil Nadu₹6.8/unit
1.5T 5★ monthly cost: ₹1,750–2,000
Highest Rate States
- Maharashtra₹9.8/unit
- Andhra Pradesh₹9.5/unit
- Telangana₹8.9/unit
1.5T 5★ monthly cost: ₹2,700–3,200
3 Common Mistakes That Increase Your AC Electricity Bill
Mistake #1: Setting temperature below 20°C
Each degree below 24°C adds 6-8% to your bill. Running at 18°C costs 36-48% more than 24°C for the same comfort.
Set your AC to 24-26°C. It is the optimal balance between comfort and electricity savings, recommended by BEE India.
Mistake #2: Not cleaning filters for 6+ months
Dirty filters restrict airflow and increase power consumption by 10-15%. Your AC works harder to push the same amount of cool air.
Clean filters every 3 months (monthly during heavy use). Takes 5 minutes and can save ₹200-400 per month.
Mistake #3: Using wrong AC tonnage for room size
Oversized AC cycles on/off wasting energy. Undersized AC runs continuously without reaching the set temperature. Both spike your bill.
Match tonnage to room size: 1T for up to 120 sq ft, 1.5T for 120-180 sq ft, 2T for 180-250 sq ft.
Use our tonnage calculator⚡ Upgrade to a Panasonic NU18 can reduce this by up to ₹540/month
Use the simulator above to get your exact personalized estimate
Choose Your AC Type — 3-Star, 5-Star or Smart WiFi
Pick the option that matches your budget and usage
Best Balance
Save ₹800–1,200/month vs 3-star — pays back in 2 years
View Best 5-Star OptionsAtomberg BLDC Fan saves you ₹420/month
Uses 65% less electricity than regular fans. Run it alongside your AC and cut your total bill — no AC upgrade needed.
₹420
Saved/month
₹5,040
Saved/year
65%
Less power
How it works: BLDC motor draws only 28W vs 75W for regular fans — saving ~₹168/month per fan on electricity alone.
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Find Your Perfect AC in 30 Seconds — Smart Quiz
Answer 3 quick questions — get your top 2 matching ACs instantly.
What is your room size?
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Built for Indian Households
Not a generic tool — every calculation is tuned for Indian electricity tariffs, climate conditions, and usage habits.
Real Indian Electricity Rate Data
We use actual state-wise tariff slabs from electricity boards across 28+ states — not flat-rate assumptions. Your bill estimate reflects what you actually pay.
Designed for Indian Usage Patterns
Indian households run ACs 6–14 hours/day in summer. Our simulator models duty cycles, humidity, outdoor temperature, and slab billing — not just watts × hours.
No Data Stored, 100% Private
All calculations happen in your browser. We never store your inputs, usage patterns, or electricity data. Your privacy is fully protected.
Updated for BEE 2026 Ratings
BEE re-rated all inverter ACs in 2026. Our database reflects the latest ISEER values, ensuring your star-rating comparisons are accurate and current.
28+
States Covered
BEE
Certified Data
2026
Latest Ratings
Free
No Signup
Best AC Deals on Amazon India
21 hand-picked ACs across 7 categories — Best Overall, 1.5T, 1T, 2T, Budget, Premium & Stabilizers. All with verified affiliate links and current prices.
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People Also Ask
A 1.5 ton 5-star inverter AC running 8 hours daily costs ₹1,764/month at ₹7 per unit (Delhi average). A 3-star model costs ₹2,604/month. Annual cost: ₹21,168 for 5-star vs ₹31,248 for 3-star.
The Panasonic CS/CU-NU18BKY5WX has the lowest electricity bill — ISEER 5.80, consuming 175 units/month at 8 hours daily (₹1,225 at ₹7/unit). Carrier CAI18 (ISEER 5.60) is second. Both significantly outperform standard 5-star models.
Yes — inverter ACs use 30-40% less electricity than fixed-speed models. A 1.5T 5-star inverter saves ₹840/month versus a 3-star non-inverter. Payback on the ₹10,000-15,000 premium is 12-18 months for 8+ hours daily use.
Monthly Bill = AC Wattage (kW) × Daily Hours × 30 Days × Rate (₹/unit). Example: 1.5T 5-star = 1.05 kW × 8 hrs × 30 × ₹7 = ₹1,764/month. Adjustments needed for slab rates and outdoor temperature.
Three free fixes: Set temperature to 24°C (saves 36% vs 18°C), run ceiling fan alongside AC (saves 12-18%), clean filter monthly (saves 10-15%). Combined: ₹800-1,400/month for typical 1.5T usage.
For 4+ hours daily use: yes, the ₹10,000-15,000 premium pays back in 12-18 months through electricity savings, then saves ₹840/month forever. For under 3 hours daily: payback extends to 3+ years and may not be worth it.
A 1.5T 5-star inverter AC consumes 8.4 units (kWh) per day at 8 hours of operation. A 3-star model consumes 12.4 units/day. Monthly: 252 vs 372 units. The difference (120 units) costs ₹840/month at ₹7/unit.
Set AC to 24-26°C — BEE India's recommended optimal range. Every degree below 24°C adds 6-8% to consumption. Running at 18°C costs 36-48% more than 24°C for the same comfort. The "3-degree rule": don't go more than 3°C below outside dew point.
Data verified against BEE 2026 ISEER standards and state DISCOM tariffs. Actual consumption varies by brand model, outdoor temperature, and room insulation.