Generator Fuel Cost Calculator

A generator is the standby power solution for homes and businesses across Pakistan, and sizing it correctly avoids two expensive mistakes: buying one too small that overloads, or too large that wastes fuel. This Generator Fuel Cost Calculator sizes your generator from your load requirements.

The calculation adds your running load and applies the standard safety margin — generators should run at 70–80% of capacity, never flat out — to arrive at the right kVA or kW rating.

Fuel consumption follows the load: a generator under light load burns less per hour but costs more per unit of useful power. Sizing it to your typical load, not your peak, balances cost and reliability.

Match the result to the generator's rated output (kVA) — convert kW to kVA by dividing by the power factor, typically 0.8 for single-phase generators used in Pakistani homes.