⚡ Electricity Cost Calculator
Calculate electricity cost with tiered pricing
Tier 1
300 kWh
$156.00
Calculate electricity cost with tiered pricing
This calculator precisely computes the energy consumption and cost of household appliances. Enter the appliance power (watts or kilowatts) and daily usage hours to automatically calculate daily, monthly, and annual energy consumption (kWh) and cost. It also supports tiered pricing.
Understanding your appliances' actual energy consumption helps identify "hidden energy hogs" and find savings opportunities. Many appliances consume far more than people realize — an old air conditioner's standby power alone may equal an LED light's full-day consumption.
[Tiered Electricity Pricing Reference] (varies by region and provider)
Tier 1: Monthly usage ≤ 200 kWh, ~$0.10-0.15/kWh Tier 2: 200-400 kWh, ~$0.13-0.18/kWh Tier 3: > 400 kWh, ~$0.18-0.25/kWh
Note: Some areas offer time-of-use pricing — off-peak (typically 10PM-6AM) rates are lower, ideal for EV charging and running appliances.
[Common Appliance Power Reference] - Air conditioner (1.5 ton): Cooling power ~1,000-1,200W, ~1-1.2 kWh/hour - Water heater (60L): 2,000-3,000W, ~2-4 kWh per heating cycle - Hair dryer: 1,000-2,000W, ~0.25-0.5 kWh per 15 min - Induction cooktop: 1,800-2,200W, ~1 kWh per 30 min cooking - Microwave: 800-1,200W, ~0.08 kWh per 5 min - Washing machine (front-load): 300-500W, ~0.4-0.6 kWh per cycle - Refrigerator (200L): Average 100-150W, ~2.4-3.6 kWh per 24 hours - TV (55" LCD): 80-150W, ~0.3-0.6 kWh per 4 hours - LED bulb (10W): 0.24 kWh per 24 hours - Cable box/router on standby: 5-15W, ~0.12-0.36 kWh per 24 hours
[High-Consumption Areas and Saving Strategies]
**Air Conditioning (biggest summer expense)** - Each 1°C increase saves ~7%-10% energy; recommended setting: 26°C (79°F) - Clean filters regularly to improve efficiency by 10%-15% - Use fans alongside AC to feel comfortable at higher temperatures - Turn off AC 15 minutes before leaving (residual cooling lasts)
**Water Heater** - Tankless heaters are more efficient (no reheating stored water) - For tank heaters, use a timer to avoid heating during peak rate hours - Moderate temperature (40-45°C) is more energy-efficient than maximum
**Daily Habit Changes** - Turn off lights when not needed — small savings add up - Unplug rarely-used devices (standby power adds up) - Use LED bulbs instead of incandescent — 80%+ energy savings for same brightness - Run washing machine with full loads — half loads use nearly the same energy - Don't overfill the refrigerator (blocks air circulation) and keep it away from heat sources
**Appliance Purchase Tips** When buying new appliances, look for energy efficiency labels (highest rating = most efficient). Although high-efficiency models cost more upfront, long-term energy savings often exceed the price difference. This is especially true for always-on appliances like refrigerators and AC units, where efficiency differences can save hundreds per year.
This calculator is for reference only. Actual rates depend on your local utility company's latest published rates.