🌬️ Quick: pick your cooler type
then set your hours below ↓
🌬️ Cooling Cost

Air Cooler Electricity Cost Calculator

See how many units your air cooler uses, what it costs per day and month — and how much you save versus an AC.

🌬️ An air cooler is the cheapest way to stay cool. It uses a fraction of an AC's power — often under ₹500 a month even with heavy use. Great where summers are dry.
On the label — personal ~150, desert ~200–350 W
📊 Your Air Cooler Cost
Units per Day
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Cost per Day
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Cost per Summer (4 mo)
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Units per Month
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📅 Monthly Electricity Cost
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💡 Versus an AC: a 1.5 ton AC for the same hours would cost about —/month. Your cooler saves roughly —/month.
Formula: Units/day = Power (kW) × Hours  |  Cost = Units × Tariff (₹/unit)

How This Calculator Works

An air cooler is basically a fan plus a small water pump, so it draws steady, low power. Unlike an AC there is no compressor cycling — the units are simply its wattage times the hours it runs.

The wattage on the label usually already includes the pump, so one figure covers the whole cooler.

💰 Related Calculators

❄️ AC Electricity Cost 🧊 Refrigerator Electricity Cost 🔥 Geyser Electricity Cost 🧾 Electricity Bill Calculator

💡 Cool for Less

  • → Run on low/medium speed
  • → Place near a window for cross-air
  • → Keep cooling pads clean
  • → Use the timer; switch off the pump when cool
  • → A BLDC cooler uses ~half the power

How Air Cooler Electricity Use Is Calculated

An air cooler draws constant low power while running, so its consumption is simply its wattage multiplied by the hours used. There is no compressor cycling as in an AC, which is exactly why a cooler is so much cheaper to run in dry climates.

Units per Day = Power (kW) × Running Hours Cost per Day (₹) = Units per Day × Tariff (₹/unit) Cost per Month (₹) = Cost per Day × Days Used Cost per Summer = Cost per Month × 4

Worked Example — 200 W desert cooler

200 W = 0.2 kW  |  10 hrs/day  |  30 days  |  ₹8/unit

Units/day = 0.2 × 10 = 2 units
Cost/day = 2 × ₹8 = ₹16/day → ₹480/month
A 1.5 ton AC (1.1 kW) for the same 10 hrs ≈ ₹2,640/month — the cooler saves about ₹2,160/month.

Air Cooler Running Cost Reference

Approximate monthly cost at 10 hours/day, 30 days, ₹8/unit.

Cooler TypePowerUnits/DayCost/Month
Personal cooler150 W1.5₹360
Tower cooler180 W1.8₹432
Desert cooler200 W2.0₹480
Large desert cooler350 W3.5₹840

* Approximate. Wattage includes the water pump. Use the calculator above for your exact cooler and hours.

Frequently Asked Questions

About 0.15–0.35 units/hour. Personal cooler ~150 W (0.15 units/hr), tower ~180 W, desert ~200 W, large desert up to 350 W — roughly a fifth to a tenth of a 1.5 ton AC.

A 200 W desert cooler for 10 hours/day at ₹8/unit costs ~₹16/day, ₹480/month, or about ₹1,920 for a 4-month summer. A 150 W personal cooler costs ~₹360/month for the same hours.

Yes, dramatically. A 200 W cooler uses ~0.2 units/hour vs ~1.1–1.5 for a 1.5 ton AC. Over a month at 10 hours/day the cooler costs ~₹480 vs ₹2,600–3,000 for the AC — saving roughly ₹2,000–2,500/month.

Only marginally. The water pump draws just 20–40 W; the fan motor is the main load. The label wattage usually already includes the pump, so your entered figure covers both.

Run on low/medium speed, place it near a window for cross-ventilation, use the timer, keep cooling pads clean, and switch to fan-only once cool. A BLDC-motor cooler uses about half the electricity of a standard one.

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