Electricity Cost Calculator — Household Appliance Daily / Monthly / Annual Cost Estimator
By Appliance Power By Total Consumption Appliance Name (optional) Rated Power P (W) Daily Usage (h) LED Bulb 60W Refrigerator 150W AC 2000W Water Heater 2200W Instant Faucet 3000W Desktop PC 500W Include standby power (5% of rated power) Monthly Consumption (kWh) Solo Dweller 100 kWh/mo Normal Family 300 kWh/mo Multi-Appliance 600 kWh/mo High-Power 1000 kWh/mo Electricity Price (¥ / kWh) Residential 0.528 Commercial 0.6 Peak Rate 1.2 Usage Days / Period Electricity Cost Estimate Daily Consumption --kWh Daily Cost ¥-- Monthly Cost (30 days) ¥-- Yearly Cost (Est.) ¥-- % of Household Monthly Income (assumed ¥3000/mo) --% 🌱 CO₂ Emission Est.::-- kg CO₂ ≈ 0.785 kg CO₂/kWh, China grid average What is the Electricity Cost Calculator? The Electricity Cost Calculator is an online quick-calculation tool for household users, tenants, and small commercial operators. Based on the national standard GB/T 32151.1 for household energy classification and the general residential tiered electricity pricing formula, it takes two key inputs — single-appliance wattage + daily usage hours, or total monthly consumption in kWh — and overlays the local electricity rate (¥/kWh) to instantly compute daily / monthly / annual electricity costs, share of monthly income, and annual CO₂ emissions. ...