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About this tool
Estimate your monthly electricity bill from appliance wattage, daily usage hours and your per-unit tariff.
Electricity Bill Calculator turns your appliance list into a realistic monthly bill: enter each device's wattage, how many hours a day it runs and how many you own, then add your per-unit tariff, fixed charges and electricity duty. It reports total units (kWh), the rupee cost, the per-day average and a ranked view of which appliances are actually driving the bill. Useful for households, PGs, shops and small offices trying to find where the money goes before the next meter reading.
Open Electricity Bill Calculator on AltFTool — it loads instantly in your browser.
Enter the values you already know.
Fine-tune the options to match your scenario.
Read the result and use it in your planning or reporting.
See units and rupees for every device, plus a ranked share bar showing the biggest power users.
Energy charges, fixed charges and tax or electricity duty are calculated separately, the way discoms bill them.
The same inputs give you cost per day and projected annual spend, so savings decisions are easier to judge.
One unit is one kilowatt-hour: watts x hours of use / 1000. A 1500 W air conditioner running 6 hours uses 9 units a day, or about 270 units in a 30-day month.
Yes, but enter your effective average rate rather than the first-slab rate. Divide the energy-charge amount on your last bill by the units consumed to get it, since slab rates step up as consumption rises.
Many do. Set-top boxes, chargers, TVs and inverters draw standby power of roughly 1-10 W. You can model this by adding a low-wattage entry running close to 24 hours a day.
Actual bills include slab changes, fuel surcharge adjustments, meter-reading cycles that are not exactly 30 days, and appliances cycling on and off rather than running continuously. Treat the result as a close informational estimate, not a billed amount.
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