Appliance kWh Cost
Pinpoint exactly which appliances are eating your Meralco bill. Edit wattage, hours, and rate — see peso cost per hour, per day, per month, and what share each one steals.
Electricity rate
Your appliances
Per-appliance breakdown
| Appliance | kWh / mo | ₱ / month | Share | ₱ / hr | ₱ / day |
|---|---|---|---|---|---|
| Aircon (1HP inverter) | 216 | ₱2,592 | 56.2% | ₱10.80 | ₱86.40 |
| Refrigerator (inverter) | 108 | ₱1,296 | 28.1% | ₱1.80 | ₱43.20 |
| Electric fan | 15 | ₱180 | 3.9% | ₱0.60 | ₱6.00 |
| TV (LED, 50") | 15 | ₱180 | 3.9% | ₱1.20 | ₱6.00 |
| Washing machine | 4 | ₱48 | 1.0% | ₱6.00 | ₱6.00 |
| Shower water heater | 26.3 | ₱315 | 6.8% | ₱42.00 | ₱10.50 |
Tool reviewed 2026-06-14
How it works
kWh / month = (wattage ÷ 1,000) × hours/day × days/month. A 900W aircon running 8 hrs/day × 30 days consumes 216 kWh.
Cost / month = kWh × your electricity rate. At ₱12/kWh that aircon costs ₱2,592/mo.
Share of bill = appliance cost ÷ total cost. Useful to spot the one device eating half your bill — usually the aircon.
Pure browser-side math. Defaults are typical PH household appliances; edit anything to match yours.
Frequently asked questions
Where do I find my electricity rate?
Look at your latest Meralco bill: divide the total amount by the kWh used. For residential customers on Meralco, the effective rate (generation + distribution + transmission + taxes) typically runs ₱11–13/kWh as of 2026. If you're outside Meralco's franchise area (Visayas, Mindanao, off-grid co-ops), check your local utility's bill — rates vary widely (NEA co-ops can be ₱9–15/kWh; some islands hit ₱20+).
How accurate are appliance wattages?
Wattage labels on appliances are nameplate maximums — the actual draw is usually lower, especially for inverter aircons and refrigerators that cycle on/off. Our defaults use realistic average draw, not peak. For exactness, use a clamp meter or a smart plug with kWh logging on the appliance for a few days, then divide by hours observed.
Why is my aircon costing so much?
A 1HP (~750W) non-inverter aircon at 8 hrs/day, 30 days, ₱12/kWh = ₱2,160/mo. A 2HP unit can hit ₱4,000+. Inverter models cut roughly 30–40% off that once room temperature stabilizes. Aircon is usually 40–60% of total household electricity for homes that use it nightly.
Is the refrigerator really that big a cost?
It's on 24/7, so even at 150W average, that's ~108 kWh/mo = ₱1,300/mo at ₱12/kWh. Older non-inverter refs can pull 250W+ steady. If you're shopping, the energy-efficiency label sticker pays back quickly — a ₱5K premium for a 30% more efficient model recovers in 12–18 months.
What about appliances I forgot, like the WiFi router or chargers?
Always-on small electronics (router, modem, ONT, ambient lights) add up to ~20–40 kWh/mo combined. Phone chargers in standby pull <1W and aren't worth modeling. If your bill is much higher than what this tool predicts, you have hidden vampires — water dispenser, water heater on standby, or an old aircon left in standby.
Does this account for time-of-use rates?
Not yet. Meralco residential is currently flat-rated for most customers. If you're on a time-of-use pilot or a TOU commercial rate, model each appliance with its peak vs off-peak split manually. We may add TOU support if it rolls out to residential broadly.
What's a 'kWh' actually?
A kilowatt-hour is 1,000 watts running for 1 hour. A 100W TV running 10 hours uses 1 kWh. The Meralco bill charges you per kWh consumed. Wattage × hours used = energy in Wh; divide by 1,000 = kWh.
Does this save or transmit my data?
No. Everything runs in your browser. We don't store, log, or transmit your appliance list or rate.
Sources & references
From official issuer, regulator, and data-provider sites. Verify any figure against the primary source before acting on it.