How to Calculate Appliance Electricity Cost
Every electrical appliance has a wattage rating — the amount of power it draws when running. To find out what it costs to operate, use this simple formula:
kWh/day = (Watts × Hours Used) ÷ 1000
Daily Cost = kWh/day × Rate per kWh
Monthly Cost = Daily Cost × Days in Billing Cycle
Annual Cost = Daily Cost × 365
Why Currency Conversion Matters
Electricity rates and costs vary dramatically around the world. A kilowatt-hour costs ~$0.16 in the US, ~£0.25 in the UK, and as little as ₹8 in India. Our live currency converter fetches real-time exchange rates so you always see costs in your local currency.
Which Appliances Cost the Most?
Electric water heaters, central AC systems, and clothes dryers are typically the biggest electricity consumers in a home — together often accounting for 50–60% of a household's electricity bill.
Frequently Asked Questions
How much does it cost to run a TV all day?
A 65" LED TV uses about 120 watts. Running it 8 hours/day at $0.16/kWh costs about $0.15/day or $4.61/month — relatively inexpensive compared to heating/cooling appliances.
Does unplugging appliances save electricity?
Yes. Standby or "phantom" power from plugged-in devices can account for 5–10% of your electricity bill. Common culprits include TVs, game consoles, microwaves, and phone chargers.
How much electricity does an EV charger use?
A Level 2 home EV charger uses about 7,200 watts. Charging 2 hours/day costs about $2.30/day or $69/month at the US average rate of $0.16/kWh.
What is the most energy-efficient refrigerator setting?
Set your fridge to 37°F (3°C) and freezer to 0°F (-18°C). Each degree colder increases energy consumption by about 2–3%. Keep it full but not overpacked for best efficiency.