How Much Does an Aircon Cost on Your Meralco Bill?
By HP, by type, and by hours of use — a real cost estimate for your air conditioner, plus why an inverter unit can cut the bill nearly in half.
~₱1,300–3,450typical monthly cost for one 1.0HP unit, 8 hrs/day
~35–45%less than non-inverter, for an equivalent inverter unit
#1single biggest driver of a summer bill spike for most households
A non-inverter aircon runs its compressor at full power, then shuts off and restarts once the room hits temperature — using a burst of electricity each time it kicks back on. An inverter unit instead adjusts compressor speed continuously to hold the temperature steady, which is why it uses meaningfully less electricity over the same number of hours.
These are estimates using typical residential Meralco rates — your exact figure depends on the current per-kWh rate, which changes monthly. Check
today’s rate and run your specific unit through the
appliance calculator for a precise number.
Show the math yourself
These numbers aren’t a black box — you can verify them with the same formula the appliance calculator uses:
watts ÷ 1,000 × hours per day × ₱ per kWh × days in the month
Worked example for a 1.0HP non-inverter unit (1,000W) run 8 hours a day for 30 days, at a residential rate of ≈ ₱12/kWh: 1.0 kW × 8 hrs × ₱12 × 30 days = ₱2,880 — right in the ₱2,400–₱3,450 range shown above, and it moves up or down automatically as the actual rate does.
Hours of use
The most direct lever. Running 8 hours instead of 12 can cut aircon cost by a third on its own.
Set temperature
Every degree lower makes the compressor work harder to maintain it, especially on non-inverter units.
Unit age & maintenance
A poorly maintained or aging unit loses efficiency, meaning it draws more power to produce the same cooling.
Room size & insulation
An undersized unit for the room, or a room that leaks cool air, forces the compressor to run longer than it should.
Aircon is almost always the single biggest reason a bill spikes during hot months — not a rate change, not a meter issue. If your bill jumped and the weather got hotter, check this first before anything else.
1. How much does a 1HP aircon cost per month?+
Roughly ₱1,300–₱2,000 for an inverter unit or ₱2,400–₱3,450 for a non-inverter unit, running about 8 hours a day at current residential rates.
2. Is an inverter aircon really worth the higher upfront cost?+
For regular daily use, yes — the electricity savings from lower running consumption typically pay back the price difference over time, especially for units run several hours a day.
3. Does setting a lower temperature cost that much more?+
Yes — each degree lower makes the compressor work harder and longer to reach and hold that temperature, which increases consumption.
4. How many watts does a typical aircon use?+
A 1.0HP non-inverter unit draws around 1,000 watts running; an equivalent inverter unit averages closer to 650 watts due to variable-speed operation.
5. Why did my bill jump even though I use the aircon the same hours?+
Hotter weather makes the compressor work harder to hit the same set temperature, increasing consumption even at identical run times.
6. Is running two aircons double the cost of one?+
Roughly, yes, if both run similar hours — cost scales with total wattage draw and hours of use across all units.
7. Does turning the aircon off and on use more electricity than leaving it running?+
For non-inverter units, frequent restarts draw a power surge each time. For short absences, leaving it on a higher temperature setting can sometimes use less than a full restart cycle.
8. How can I get an exact number for my own unit?+
Use the appliance calculator with your unit’s actual wattage (check the label or manual) and your typical daily hours of use.
