Is this calculator free?

Yes — free, no sign-up, no reference number required.

Which tariff year is this based on?

The most recent NEPRA notification for 2025-26. We update whenever NEPRA revises rates.

K-Electric's tariff mirrors the national inclining-block structure, so the estimate applies with a small margin of error.

APPLIANCE

Diesel or petrol generator cost per kWh at current fuel prices.

Generator size (kW)Hours per dayFuelPetrol Rs./LDiesel Rs./L

Fuel consumption2.00 L/hour

Effective cost per kWhRs. 108

Cost per hourRs. 540

Cost per dayRs. 2,160

Cost per monthRs. 64,800