关于本计算器
Estimate electricity use and cost from appliance wattage, daily hours and tariff — per day, month and year.
电费计算器
按功率与电价计算日/月/年的用电量与费用。
输入计算参数
计算结果摘要
费用 / 个月
72
480.0 kWh / 个月 · 864 / 年用电量16.00 kWh/ 天
费用2.4/ 天
费用864/ 年
常见问题
What is the kWh formula?
kWh = watts × hours / 1000; cost = kWh × tariff.
What uses the most power?
Heating, cooling and water heating dominate; a 2 kW heater running 8 hours burns 16 kWh daily.
How to save electricity?
Lower the thermostat a degree, switch to LED, and kill standby loads.