AC Electricity Bill Calculator

Scared to turn on the AC? Find out how much extra your electric bill will be before you commit.

📱 Just enter your AC hours
Pick wall-mounted or stand AC, daily hours, and your usual monthly usage — get an instant estimate of the extra cost. We also warn you if you're about to cross into a pricier tier.

🧮 Summer tariff relief tiers included
Korea relaxes the progressive tiers every July and August (tier 1: 0–300kWh, tier 2: 301–450kWh). The detailed calculator mirrors Korea's official residential formula — base fee, energy charge, climate & environment fee, fuel cost adjustment, VAT, and the power industry fund.

✅ Free, offline, no sign-up
Calculate instantly with no internet connection or login required. We don't collect any personal data.

⚠️ Your actual bill may differ due to meter variance, special tariffs, or welfare discounts. Results are estimates for reference only.