AC Running Cost Calculator
See what your AC really costs to run each year, and what a higher BEE star rating saves. Set the tonnage, star rating, hours per day, cooling months and your tariff — it uses ISEER to estimate the units.
1519 units/year · 1.5 T 5-star, 8 h/day for 6 months at ₹8/unit.
This 5-star unit saves about ₹3,838/year versus a 3-star of the same size — and it keeps saving every year, usually paying back the higher price. Set it around 24–26 °C to save more.
A planning estimate. It uses indicative ISEER values per star rating (BEE revises these periodically — check the current label) and assumes steady seasonal running; real cost varies with climate, insulation, set-point, room size and how the inverter modulates. Use it to compare and prioritise, and read your bill for the true figure.
Related Guides — Deep-dive reading
BEE Star Rating for ACs: How to Read the Label and Buy Smart
The 1–5 star label on every air conditioner, decoded — what BEE stars and ISEER actually mean, why the ratings get tougher over time, how much a higher star really saves, and how to weigh the price premium against the running-cost saving.
HVAC & CoolingHVAC Energy Efficiency: Cutting the Biggest Energy Bill in the Building
HVAC often runs half a building's electricity, so trimming it saves the most — the practical measures that cut HVAC energy without cutting comfort: right-sizing, inverter and efficient plant, smart controls and zoning, recovery, good maintenance and sensible set-points.
HVAC & CoolingAir Conditioning Basics: How an AC Works & What the Numbers Mean
The grounding every AC buyer needs — how an air conditioner actually cools, what a 'ton' really measures, how to read ISEER and the BEE star rating, why inverter beats fixed-speed, and what the refrigerant inside means, so you can choose and judge any AC with confidence.
HVAC & CoolingRelated Tools — You may also find these useful
AC Capacity Calculator
Find the right air-conditioner tonnage for a room — from area, sun, floor, occupancy and climate. Right-sized, not oversized.
HVACAC Installation Cost Calculator
An indicative equipment + installation budget for your home's air conditioning — by AC type, tonnage and number of units, with a realistic range.
HVACAC Star Rating Savings Calculator
Whether a higher BEE star AC is worth the premium — comparing two star ratings (via ISEER) for your usage to give the annual saving, payback period and lifetime saving.
HVAC