
AC Electricity Savings Calculator
& ROI Tracker
See exactly how much money a 5-star inverter AC puts back in your pocket — monthly, annually, and over 5 years. Find your personal break-even point in seconds.
Rated 4.8 out of 5 by 2,340+ users — India's most trusted AC bill calculator
8+ years practical experience in AC / Plant Installation, Maintenance and Repair. HVAC Expert at S.R Enterprise under the authorized dealership of Hitachi. All data is verified against 2026 BEE Tariff Orders and manufacturer specifications.
Affiliate Disclosure: This page contains affiliate links. As an Amazon Associate, The DU Tech Team earns from qualifying purchases. This does not affect our recommendations. Read our full disclosure →
Scenario A — Your Current AC
Non-Inverter / Fixed Speed
Power draw: 1.65 kW/hr
Scenario B — New Inverter AC
5-Star Inverter / Variable Speed
Power draw: 0.92 kW/hr
Old AC monthly bill
₹3168
New AC monthly bill
₹1766
Configure your old and new AC scenarios, then click Calculate to see your personalised savings forecast.
Ready to start saving?
The LG Dual Inverter is India's #1 AC for 2026. Pair it with the Atomberg BLDC fan to maximise every rupee of savings.

LG 1.5T 5★ Dual Inverter
AI Cooling · ISEER 5.25
Pro tip: Run the LG AC at 26°C with the Atomberg BLDC fan — the fan's wind-chill effect makes 26°C feel like 24°C, cutting your bill by ~30% vs running AC alone at 24°C.
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3-Star vs. 5-Star AC:
Is the Extra Cost Worth It?
Short answer: Yes — almost always. Here's the complete financial and technical breakdown.
3-Star Fixed Speed
The budget choice
5-Star Inverter
RecommendedReady to find the best 5-star inverter model for your budget?
View Best 5-Star ACs in India →Understanding the "Payback Period"
of Premium ACs
The payback period is the single most important number when buying an AC. Here's how to calculate it — and why it almost always favours the 5-star model.
Step 1
Find the Price Difference
Compare the cost of your current AC (or the 3-star model you're considering) vs. the 5-star inverter equivalent. This is your 'investment amount' — typically ₹5,000–₹10,000.
Step 2
Calculate Monthly Savings
Use our calculator above to find the monthly electricity saving. A typical switch from 3-star fixed to 5-star inverter saves ₹400–₹900/month depending on usage.
Step 3
Divide to Find Break-even
Break-even months = Price Difference ÷ Monthly Savings. If you save ₹600/month and paid ₹8,000 extra, you break even in ~13 months. Every month after is pure profit.
Real-World Payback Scenarios
Light User
4 hrs/day · 5 months/year
Average User
8 hrs/day · 7 months/year
Heavy User
12 hrs/day · 10 months/year
Need to see the technical specs side-by-side?
Our comparison tool lets you pit LG vs Daikin vs Voltas head-to-head on efficiency, price, and features.
Common Savings Questions
Straight answers to the questions buyers ask most.
Understand your savings? Now find the right AC.
These tools help you turn your savings calculation into a confident buying decision.
Best 5-Star ACs in India
Top-ranked 5-star inverter ACs that deliver the savings you just calculated.
Best Inverter ACs
Inverter models with the highest ISEER ratings — maximum savings guaranteed.
Compare Models Side-by-Side
Put two ACs head-to-head on ISEER, noise, price, and features.
Ready to start saving?
Our experts have ranked the best 5-star inverter ACs available in India for 2026.
Bill Calculator
See how savings affect your monthly bill
Use our flagship tool to model your exact monthly cost with the new AC.
Go to AC Bill Calculator →Comparison Tool
Technical difference between brands
LG vs Daikin vs Voltas — side-by-side specs, ISEER ratings, and prices.
Open Comparison Tool →Best Picks
Ready to start saving?
Our experts have ranked the best 5-star inverter ACs available in India for 2026.
View Best 5-Star ACs →