Calculate how much electricity an appliance uses based on its wattage, daily usage, number of days, and electricity rate. Estimate cost per hour, day, month, and year in Philippine pesos (₱). This free tool runs in your browser and is intended for general planning only.

Disclaimer

This Electricity Cost Calculator is provided for general information and educational purposes only. Results are estimates based on the wattage, usage hours, days per month, and electricity rate you enter. They do not represent an official electricity bill and do not account for taxes, fixed charges, demand charges, tiered rates, or other utility fees.

Appliance presets use example wattage values. Actual consumption varies by model, settings, efficiency, room conditions, and how the appliance operates (especially for air conditioners and refrigerators). Web4pps does not provide energy, utility, or financial advice. Always confirm figures with your electricity bill and appliance specifications.

How to Use Electricity Cost Calculator

Follow these steps to estimate how much an appliance costs to run:

• Choose a display currency — USD, PHP, GBP, JPY, or EUR. This only changes how amounts are formatted; it does not convert between currencies.
• Select an appliance — choose a common device to fill an example wattage, or pick Custom Appliance.
• Enter power consumption — use the rated watts from the nameplate or manufacturer specs when possible.
• Set hours used per day — decimals are allowed (for example 1.5 or 8.75).
• Set days used per month — default is 30 days.
• Enter your electricity rate — per kWh in your selected currency from your latest bill (or an approximate effective rate).
• Click Calculate Electricity Cost — review estimated monthly cost, kWh use, and the cost and consumption breakdowns.

The calculator converts watts to kilowatts, then multiplies by hours, days, and your rate: kW = Watts ÷ 1000, Daily kWh = kW × Hours Per Day, Monthly kWh = Daily kWh × Days Per Month, Monthly Cost = Monthly kWh × Rate.

Who should use Electricity Cost Calculator

This free tool is built for anyone who wants a clear estimate of appliance running costs without creating an account or installing software.

• Households comparing how much air conditioners, fans, TVs, and other devices cost.
• Renters and homeowners planning monthly electricity expenses in the Philippines.
• People checking whether a new appliance is worth the expected energy cost.
• Anyone learning how wattage, usage hours, and rate per kWh combine into monthly electricity cost.

It is not a replacement for your utility bill, a home energy audit, or advice from a licensed electrician or energy professional.

How Electricity Cost Is Calculated

Electricity cost depends on three things: how much power the appliance draws, how long it runs, and what you pay per kilowatt-hour.

• Convert watts to kilowatts: kW = Watts ÷ 1000
• Daily consumption: Daily kWh = kW × Hours Per Day
• Monthly consumption: Monthly kWh = Daily kWh × Days Per Month
• Monthly cost: Monthly Cost = Monthly kWh × Electricity Rate
• Hourly cost: Hourly Cost = kW × Electricity Rate
• Annual cost: Annual Cost = Monthly Cost × 12

Example: A 1,000 W appliance used 8 hours/day for 30 days at ₱12/kWh: 1,000 ÷ 1,000 = 1 kW → 1 × 8 = 8 kWh/day → 8 × 30 = 240 kWh/month → 240 × ₱12 = ₱2,880/month.

How to Find Your Electricity Rate

Philippine electricity bills often include multiple charges. A practical approximate effective rate is:

Electricity rate ≈ Total electricity charge ÷ Total kWh consumed

Example: if your bill is ₱4,800 for 400 kWh, then ₱4,800 ÷ 400 = ₱12/kWh. Use your latest bill for the most accurate estimate. The calculator default of ₱12/kWh is only a starting point and is not a permanent assumption.

How Much Does It Cost to Run Common Appliances?

Illustrative monthly costs assuming ₱12/kWh and 8 hours/day for 30 days. Actual usage and wattage differ by household and model.

• Electric Fan (60 W) — about ₱172.80/month
• TV (100 W) — about ₱288.00/month
• Laptop (65 W) — about ₱187.20/month
• Desktop PC (300 W) — about ₱864.00/month
• Rice Cooker (700 W) — about ₱2,016.00/month
• Air Conditioner (1,000 W) — about ₱2,880.00/month

How to Reduce Electricity Costs

• Reduce daily operating hours where practical.
• Choose energy-efficient appliances when replacing older models.
• Turn appliances off when they are not needed.
• Use appropriate temperature settings for air conditioners.
• Clean air-conditioner filters regularly.
• Avoid unnecessary standby power consumption.
• Compare appliance wattage before purchasing.
• Use timers where appropriate.

These are general tips. Savings depend on your usage, appliance efficiency, and local rates—avoid assuming a fixed percentage reduction.

Frequently Asked Questions

How do I calculate the electricity cost of an appliance?
Use the appliance's wattage, hours of operation, number of days used, and electricity rate. This calculator applies those inputs using standard kWh formulas.

How much does 1,000 watts cost per hour?
At ₱12/kWh, a 1,000-watt appliance costs approximately ₱12 per hour when operating continuously at its rated power.

How do I calculate kWh from watts?
Divide watts by 1,000 to get kilowatts, then multiply by the number of hours used.

How much electricity does an appliance use per month?
Multiply its power consumption in kW by hours used per day and days used per month.

Does the calculator show my actual electricity bill?
No. It provides an estimate based on the information entered. Actual bills can include other charges, taxes, fees, and varying rates.

Does an air conditioner always consume its rated wattage?
No. Actual consumption can vary depending on the model, inverter operation, temperature setting, room conditions, compressor cycling, and other factors.

Does the currency selector convert money?
No. Choosing USD, PHP, GBP, JPY, or EUR only changes how numbers are formatted on screen. Enter your electricity rate in one currency and keep that currency selected for consistent results.

Is this electricity cost calculator free?
Yes. You can use it as often as you like at no cost, with no account required.

Are my numbers stored?
Calculations run in your browser. See Privacy Information below for details.

Privacy Information

The Electricity Cost Calculator runs entirely in your browser. Appliance selection, wattage, usage hours, days per month, and electricity rate are used only to compute results on your device. Web4pps does not require an account to use this tool, and these calculator inputs are not sent to our servers for storage. Do not enter information you are uncomfortable keeping on your own device while using the page.