liminfoElectricity Cost Calculator
Free web tool: Electricity Cost Calculator
Based on Korean residential (low-voltage) electricity rates. Actual charges may differ.
About Electricity Cost Calculator
The Korean Electricity Bill Calculator computes your estimated monthly residential electricity bill using the Korea Electric Power Corporation (KEPCO) 2024 progressive rate structure for low-voltage household connections. Enter your monthly consumption in kWh and the tool immediately breaks down every component of your bill across all applicable progressive tiers.
Korea's residential electricity pricing uses a three-tier progressive system where higher consumption is charged at progressively higher rates. Tier 1 covers 1–200 kWh at 120.0 KRW/kWh with a 910 KRW base fee; Tier 2 covers 201–400 kWh at 214.6 KRW/kWh with a 1,600 KRW base fee; Tier 3 covers usage above 400 kWh at 307.3 KRW/kWh with a 7,300 KRW base fee. Only the highest reached tier's base fee is applied, not cumulative base fees.
Beyond the progressive usage fees, the total bill includes four additional charges: the Climate & Environment Fee (9.0 KRW/kWh), the Fuel Cost Adjustment (5.0 KRW/kWh), Value Added Tax (10% of the subtotal), and the Electric Power Industry Infrastructure Fund (3.7% of the subtotal, rounded down to the nearest 10 KRW). The calculator applies all these components accurately to produce a realistic monthly bill estimate.
Key Features
- KEPCO 2024 residential (low-voltage) three-tier progressive rate structure
- Tier breakdown showing kWh used, rate applied, and cost per tier
- Detailed itemization: base fee, usage fee, climate fund, fuel adjustment, VAT, infrastructure fund
- Quick-select preset buttons for common usage levels: 100, 200, 300, 400, 500, 600 kWh
- Total bill displayed prominently with all taxes included
- Real-time calculation — updates instantly as you change the kWh input
- 100% client-side computation — no usage data sent to any server
- Bilingual Korean/English interface with full dark mode support
Frequently Asked Questions
What is the Korean residential electricity progressive rate system?
Korea uses a three-tier progressive rate where electricity consumed in higher bands is charged at higher per-kWh rates. Tier 1 (1–200 kWh): 120.0 KRW/kWh, Tier 2 (201–400 kWh): 214.6 KRW/kWh, Tier 3 (401+ kWh): 307.3 KRW/kWh. The base fee is determined by the highest tier reached.
What is the base fee and how is it charged?
The base fee is a fixed monthly charge determined by which consumption tier you reach. Tier 1 base fee is 910 KRW, Tier 2 is 1,600 KRW, and Tier 3 is 7,300 KRW. Only one base fee applies — the one for the highest tier your usage reaches — not the sum of all tiers.
What is the Climate & Environment Fee?
The Climate & Environment Fee (기후환경요금) is charged at 9.0 KRW per kWh consumed. It funds renewable energy development and carbon reduction initiatives in Korea's energy sector.
What is the Fuel Cost Adjustment?
The Fuel Cost Adjustment (연료비조정액) is 5.0 KRW per kWh and reflects changes in fuel costs for electricity generation. This rate is variable and reviewed periodically by KEPCO.
How is VAT calculated on the electricity bill?
VAT (부가가치세) is applied at 10% to the subtotal of base fee + usage fee + climate fund + fuel adjustment, rounded to the nearest KRW. This is standard Korean consumption tax applied to utility bills.
What is the Electric Power Industry Infrastructure Fund?
The Electric Power Industry Infrastructure Fund (전력산업기반기금) is charged at 3.7% of the pre-tax subtotal, rounded down to the nearest 10 KRW. It finances long-term investments in Korea's electricity grid and power infrastructure.
How accurate is this calculator compared to my actual KEPCO bill?
This calculator uses the 2024 KEPCO residential low-voltage rate schedule and should closely match your actual bill. Minor differences may arise from rounding differences in KEPCO's billing system, any applicable discounts (welfare, multi-child family), or seasonal rate adjustments.
Can I use this for commercial or industrial electricity rates?
No, this calculator is designed specifically for Korean residential (주택용 저압) electricity. Commercial, industrial, and high-voltage residential connections use different rate structures and would require separate calculations.