How to use the Electricity Cost Calculator
- 1Enter the appliance's power in watts.
- 2Enter hours used per day and the number of days.
- 3Enter your rate per unit (kWh).
- 4Read the energy used and cost.
Supported formats and limits
- 1 unit on an Indian bill = 1 kWh = 1,000 watts for 1 hour.
- Wattage is on the appliance label or manual.
- Actual use varies for appliances that cycle on and off, like fridges and ACs.
Common uses
- Estimating what an AC or heater adds to the bill.
- Comparing old and new appliances.
- Checking a surprisingly high bill.
Frequently asked questions
Where do I find my rate per unit?
On your electricity bill — it often has slabs, so use the rate of the slab you usually fall into.