Home energy & efficiency

Electricity Cost Calculator

Convert a device or appliance's power draw into an actual dollar estimate — daily, monthly, and yearly — at your own electricity rate.

Device/Appliance Power (W)

Hours Used Per Day

Your Electricity Rate ($/kWh)

kWh × rate

DAILY COST

$—

MONTHLY COST

$—

YEARLY COST

$—

Energy used: Enter usage details to see your energy cost.

Check a recent electricity bill for your all-in rate per kWh, including delivery and regulatory charges — the sticker price on your plan alone often understates the real cost.
Time-of-use rates vary by time of day — use your peak rate for a worst-case estimate, or your off-peak rate if you plan to shift usage.
Run this for your biggest appliances first (dryers, space heaters, A/C) — that's where the real savings usually are.