Electricity Cost Calculator

Free electricity cost calculator. Enter appliance wattage, daily usage hours, and electricity rate to see costs. Quick-select common appliances, add multiple devices, compare LED vs CFL vs incandescent costs. Track your household energy expenses.

Electricity Rate (per kWh)

US average: ~$0.12/kWh | EU average: ~0.25 EUR/kWh

Currency

Quick Add Common Appliances

Your Appliances (1)

Appliance Name

Wattage (W)

Hours / Day

Total Monthly Electricity Cost

$43.20

Daily Cost

$1.44

12.00 kWh/day

Monthly Cost

$43.20

360.0 kWh/mo

Yearly Cost

$525.60

4380 kWh/yr

Monthly kWh Usage Breakdown

Air Conditioner

360.0 kWh$43.20100.0%

1500W

0 kWh360 kWh

Cost Breakdown by Appliance

Appliance	Watts	Hrs/Day	kWh/Month	Monthly	Yearly
Air Conditioner	1500W	8h	360.0	$43.20	$525.60
Total	1500W	--	360.0	$43.20	$525.60

Light Bulb Cost Comparison (1 Year)

Based on 8 hours/day usage at $0.12/kWh

LEDBEST

$3.85

Power: 10W

Energy: $3.50/yr

Bulb cost: $0.35/yr

Lifespan: 25,000h

CFL

$5.49

Power: 14W

Energy: $4.91/yr

Bulb cost: $0.58/yr

Lifespan: 10,000h

+$1.64/yr vs LED

Incandescent

$23.94

Power: 60W

Energy: $21.02/yr

Bulb cost: $2.92/yr

Lifespan: 1,000h

+$20.09/yr vs LED

Switching to LED saves you $20.09 per bulb per year compared to incandescent.

How It Works

kWh per day = (Watts x Hours per day) / 1,000

Monthly cost = kWh per day x 30 x Rate per kWh

Yearly cost = kWh per day x 365 x Rate per kWh

kWh (kilowatt-hour) is the standard unit for measuring electricity consumption. Your utility bill charges you per kWh consumed.

How to Use Electricity Cost Calculator

1Enter appliance wattage or select a common appliance.
2Set daily usage hours and electricity rate.
3View daily, monthly, and yearly costs.
4Add multiple appliances to see total household cost.

Frequently Asked Questions

How do I calculate electricity cost?▾

Watts × hours used ÷ 1000 = kWh. Multiply kWh by your rate (e.g. $0.12/kWh) to get the cost.

What is the average electricity rate?▾

The US average is about $0.12-0.16/kWh, but it varies significantly by state and provider.

Which appliances use the most electricity?▾

Air conditioners, water heaters, clothes dryers, and space heaters are typically the biggest energy consumers.

About Electricity Cost Calculator

NexTool's Electricity Cost Calculator is completely free to use with no sign-up required. Your data is processed directly in your browser and never sent to our servers, ensuring complete privacy and instant results.