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Commercial Tool · BEE 2026 Data

Cassette AC Electricity
Calculator & Bill Estimator

Calculate exact monthly electricity units and cost for any cassette AC tonnage. Compare inverter savings and get heatwave-adjusted estimates for Indian commercial spaces.

1–3 Ton Options
Inverter vs Non-Inverter
Heatwave Estimate
City Rate Input
1.2 kWh
1.5T Inverter/hr
At full compressor load
1.8 kWh
1.5T Fixed/hr
Non-inverter consumption
₹3,744
Monthly (10hrs)
1.5T inverter at ₹8/unit
30–40%
Inverter Savings
vs fixed-speed cassette
4.8/5

Rated 4.8 out of 5 by 2,340+ users — India's most trusted AC bill calculator

Verified ratings
Reviewed by Sulaiman Sekh — HVAC ExpertS.R EnterpriseHitachi Authorized

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.

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Power draw: 1.2 kW/hr (inverter)

10 hrs/day
4 hrs24 hrs
8/unit
26 days

Configure your cassette AC and click Calculate to see electricity estimates.

How This Calculation Works

Commercial HVAC calculations use verified BEE 2026 data and industry-standard formulas.

1

Select Tonnage

Choose 1, 1.5, 2, or 3 Ton based on your commercial space size.

2

Pick Technology

Inverter saves 30–40% vs non-inverter — critical for all-day offices.

3

Set Runtime

Enter daily hours and operating days per month.

4

Enter Rate

Input your city electricity rate per unit (₹/kWh).

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