Know what your electricity really costs — before the bill arrives.
Turn watts, hours and your own tariff into a real number: the units (kWh) an appliance uses and what they cost. One appliance or your whole home. No account, no sign-up, no internet.
⚡ ANY APPLIANCE
Air conditioner, refrigerator, ceiling fan, lighting, room heater, clothes iron and washing machine. Set the watts, how many you run and the hours per day — the estimate updates as you type.
🏠 WHOLE-HOME BILL
Switch on everything you actually run and get one total, with a ranked breakdown showing which appliance costs you the most.
💱 121 CURRENCIES
Enter the price of one unit (per kWh) from your bill and pick your currency. Every screen follows it.
📅 WEEK, MONTH OR YEAR
Switch the billing period between 7, 30 and 365 days.
💡 14 SAVING TIPS
Practical ways to cut the bill, ranked by impact.
📴 WORKS OFFLINE
Every calculation runs on your phone. No login, no account, no data collected.
🎨 Light and dark themes, 17 languages.
HOW IT WORKS
Units (kWh) = Watts × Quantity × Hours × Days ÷ 1000
Cost = Units × your tariff per kWh
Free to use, supported by ads. Results are estimates based on the values you enter — real bills also include fixed charges, taxes and slab rates. Not affiliated with any electricity provider.