1. What is Cost per Watt?

Cost per watt is a metric that helps you understand how much you're paying for each watt of power your refrigerator consumes. It's derived from your electricity cost per kilowatt-hour (kWh) and is useful for comparing appliance efficiency and calculating operating costs.

2. How Does the Calculator Work?

The calculator uses the simple formula:

Where:

• Cost/W — Cost per watt in your local currency
• Cost/kWh — Your electricity rate per kilowatt-hour
• 1000 — Conversion factor (1000 watts = 1 kilowatt)

Explanation: Since 1 kilowatt equals 1000 watts, dividing your per-kWh cost by 1000 gives you the cost per watt-hour.

3. Importance of Cost per Watt Calculation

Details: Knowing your cost per watt helps you:

• Calculate operating costs for appliances
• Compare energy efficiency between models
• Estimate savings from energy-efficient upgrades
• Budget for electricity expenses

4. Using the Calculator

Tips:

• Enter your electricity cost per kWh (found on your utility bill)
• Ensure the value is positive
• The result shows cost per watt in the same currency

5. Frequently Asked Questions (FAQ)

Q1: Why calculate cost per watt for refrigerators?
A: Refrigerators run continuously, so knowing cost per watt helps estimate long-term operating expenses.

Q2: How can I use this for my refrigerator?
A: Multiply cost per watt by your fridge's wattage and hours of operation to estimate daily cost.

Q3: Where do I find my electricity cost per kWh?
A: Check your electricity bill - it's usually listed under "energy charge" or "electricity rate."

Q4: Does this account for tiered pricing?
A: No, this uses a flat rate. For tiered pricing, use the rate that applies to your expected usage.

Q5: Can I use this for other appliances?
A: Yes, the cost per watt calculation applies to any electrical device.