MoonAir guide
Cooler vs AC running cost in India
Compare electricity use with clear wattage, hours and tariff assumptions, then choose cooling that suits your room and climate.
Quick answer: what does a cooler cost to run?
At an assumed 348W electrical input, 8 hours a day and ₹8 per unit, a cooler uses 2.784 units a day and costs about ₹668.16 over 30 days. A hypothetical AC averaging 1,350W for the same hours costs ₹2,592. These are electricity-only estimates, not promised bills or a comparison of equal cooling performance. Your model, fan speed, pump use, AC settings, weather and tariff all matter.
How to calculate electricity consumption and cost
One electricity unit is one kilowatt-hour (kWh). Units per day = electrical input watts ÷ 1,000 × hours used. Cost for 30 days = units per day × 30 × your electricity rate in ₹/kWh. For the 348W example: 348 ÷ 1,000 × 8 × 30 = 83.52 units; 83.52 × ₹8 = ₹668.16. ₹8 is an example rate, not an India-wide tariff. Use the applicable rate from your bill; slab changes, fixed charges, taxes and other adjustments can change the final bill.
MoonAir model examples: 8 hours a day at ₹8 per unit
The examples below use separate motor and pump wattages listed in MoonAir’s public calculator, checked on 9 October 2026. Their sum is an assumed electrical input for the calculation, not a measured whole-appliance rating. Confirm that the ratings represent electrical input and apply to your model and setting. If a nameplate already states total appliance input power, use that total without adding the pump again. A motor’s mechanical output rating is not the same as electrical input.
| Model / example | Listed motor W | Listed pump W | Assumed input W | Units/day | Units/30 days | Cost/30 days |
|---|---|---|---|---|---|---|
| Mahaveer 80 XP | 95 | 14 | 109 | 0.872 | 26.16 | ₹209.28 |
| Gulmarg 120 | 165 | 18 | 183 | 1.464 | 43.92 | ₹351.36 |
| MahaBali 120 XP | 330 | 18 | 348 | 2.784 | 83.52 | ₹668.16 |
| DhoomKetu 200 | 550 | 30 | 580 | 4.640 | 139.20 | ₹1,113.60 |
| Illustrative AC (not a specific model) | — | — | 1350 | 10.800 | 324.00 | ₹2,592.00 |
These four models are examples, not a universal cooler-wattage range. Actual average draw can differ from listed ratings. Models whose wattage is missing or estimated from tank size are excluded. Recheck the linked model and calculator before buying.
Choose a fair AC comparison
The 1,350W AC input above is an illustrative average, matching the calculator’s starting value; it is not a rating for every 1-ton or 1.5-ton AC. Cooling capacity and electrical input are different. An inverter AC varies its input as cooling demand changes. Use measured energy over representative hours, or a suitable manufacturer estimate, for the model you are comparing. Keep hours and tariff the same, and consider whether both appliances can provide the comfort you need.
When a cooler or an AC makes sense
Evaporative cooling is best suited to dry heat and a room with a path for fresh air to enter and moist air to leave. Keep the ventilation required by the cooler’s instructions. A cooler adds moisture and does not offer the same temperature and humidity control as an AC; in humid conditions or a sealed room, an AC may be the better fit. Choose for comfort and room conditions before comparing bills.
Electricity savings are only part of ownership cost
Compare the current purchase price plus delivery or installation, electricity, water, cleaning, pads, servicing and repairs. For a four-month season of 120 days, the 348W example costs ₹2,672.64 in electricity; the hypothetical 1,350W AC costs ₹10,368. Repeating the same season for five years would give an electricity-cost difference of ₹38,476.80, only if usage, tariff and average input stayed unchanged. This is not a five-year ownership-cost saving or a guarantee. Get actual purchase and maintenance quotes rather than assuming a fixed price gap.
FAQs
How much electricity does a cooler use in 8 hours?
At an assumed electrical input of 348W, 8 hours uses 2.784 kWh, or units. At ₹8 per unit, that is about ₹22.27 per day or ₹668.16 for 30 days. Replace 348W with your model’s confirmed electrical input or measured average; cooler wattages vary.
Is a cooler always cheaper than an AC to run?
For equal hours and tariff, the appliance with lower average electrical input costs less in electricity. The 348W cooler and hypothetical 1,350W AC examples cost ₹668.16 and ₹2,592 for 30 days at 8 hours/day and ₹8/unit. Those assumptions do not guarantee savings or equivalent cooling in your room.
Should I add motor and pump wattage?
Add them only when they are separate electrical input ratings for components operating together. If total appliance input is already given, do not add the pump again. A motor output rating is not electrical input. The model examples assume the separate listed motor and pump values are suitable inputs; confirm the nameplate or ask MoonAir if unsure.
Does a cooler work in humidity?
Evaporative coolers work best in dry heat and need ventilation. High humidity limits evaporation and cooling; a cooler also adds moisture. An AC may be more suitable when humidity control or a set room temperature is important.
Does the estimate include my entire electricity bill?
No. The examples cover energy used by the selected appliance at an assumed flat rate. Fixed charges, tariff slabs, taxes, other appliances, water, purchase price and maintenance are excluded. Use your bill and actual usage to refine the estimate.