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Calculate how much an appliance costs to run per day, month, and year. Identify your biggest energy expenses and find savings.

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Understanding Your Electric Bill

The average US household uses approximately 886 kWh per month (EIA data), costing $120-$150 at the national average rate of $0.16/kWh. However, rates vary dramatically: Louisiana averages $0.12/kWh while Hawaii averages $0.44/kWh. Your biggest electricity consumers are typically: heating/cooling (40-50%), water heating (14%), appliances (13%), and lighting (9%).

The formula is simple: (Watts ÷ 1,000) × Hours × Rate = Cost. A 1,500-watt space heater running 8 hours/day at $0.15/kWh costs $5.40/day or $162/month — often more than people realize. Switching to a heat pump or improving insulation can cut heating costs by 30-50%. Factor energy costs into your overall budget with our Budget Planner.

People Also Ask

What uses the most electricity in my home?
HVAC (heating/cooling): 40-50% of total. Water heater: 14%. If your bill seems high, these are the first places to investigate.
How do I find my electricity rate?
Check your most recent electric bill — look for "price per kWh" or "energy charge." The national average is approximately $0.16/kWh. Time-of-use plans may charge different rates at peak vs off-peak hours.
Do appliances use electricity when turned off?
Yes — "phantom load" or "vampire power" from electronics in standby mode costs the average household $100-$200/year. Use smart power strips to eliminate phantom loads.
Is solar worth it?
If your electricity bill exceeds $100/month, you use 20+ years of projected energy, and your roof gets good sun exposure, solar typically pays for itself in 6-10 years. Net metering policies vary by state.