DesiMetrics
AC hub

O General AC Bill Calculator

Estimate what your O General air conditioner costs to run, using its tonnage and BEE star rating — priced at your state's real top electricity slab. The same real ISEER-based method we use for every brand.

3–5 ★

Star ratings

ISEER

BEE efficiency basis

Top slab

Pricing method

36 states

DISCOM coverage

Worked example

A 1.5 ton 3-star O General AC running 8 hours/day in Tamil Nadu uses about 8.32 units/day and costs roughly ₹1,685.19/month (₹20,503.12/year) at ₹6.75/unit.

Calculate your O General AC's cost

AC Running Cost Calculator

Estimate your air conditioner's electricity cost

Tonnage
Star rating
8hrs/day

Results are approximate estimates. Your actual bill may vary.

Estimated monthly running cost

₹2,434.16

≈ ₹29,615.62/year · 249.66 units/month

Switching to 5-star saves ₹7,246.38/year

Input power
1.49 kW
ISEER
3.55
Units per day
8.32
Billed at (top slab)
₹9.75/unit

Assumes a 70% compressor duty factor and ISEER 3.55 for a 3-star unit. Priced at your top electricity slab (₹9.75/unit incl. FCA & duty).

How this is calculated

Efficiency (ISEER). Your O General AC's star rating maps to a BEE ISEER value — the same standard applies to every brand sold in India, so a 5-star O General unit and a 5-star unit from any other brand meet the same minimum efficiency. We convert tonnage to cooling power, divide by ISEER for electrical input, and apply a ~70% compressor duty factor.

Priced at your top slab. Since an AC adds to your existing consumption, its units fall in your highest tariff slab — we use that marginal rate (plus fuel cost adjustment and electricity duty) for a realistic estimate.

Related calculators

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AC comparison tool

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All AC brands

See every brand this calculator covers.

Frequently asked questions

Does this calculator work for any O General AC model?

Yes — the calculation is based on tonnage, BEE star rating and daily usage hours, which apply to any AC regardless of brand. Enter your specific O General model's tonnage and star rating (both printed on the unit and its BEE label) for an accurate estimate.

How accurate is this for a O General AC specifically?

The underlying ISEER efficiency standard is set by the Bureau of Energy Efficiency (BEE) and applies uniformly across all brands sold in India — a 3-star AC from any manufacturer must meet the same minimum ISEER band. So this estimate is equally accurate for O General as for any other BEE-labelled brand, within the usual planning-estimate caveats (room insulation, set temperature, usage pattern).

Where do I find my O General AC's star rating?

Check the yellow BEE star label on the indoor or outdoor unit, or the spec sheet/box it came in — it states the star rating and ISEER value directly.