Generator Running Cost Calculator
Plan generator fuel spending from litres per hour, running hours, fuel price and operating days.
Enter your figures
Fill in every field to see your estimate. Enter 0 for a known zero value.
How it works
Multiply fuel consumption in litres per hour by daily running hours for daily fuel use. Multiply by price per litre for daily spending, then by the number of days you want to budget for. The formula works for petrol or diesel when consumption and price match the fuel.
For example, a generator using 1.2 litres per hour for five hours consumes six litres daily. At an illustrative ₦1,000 per litre, that is ₦6,000 daily and ₦180,000 for 30 days. Enter your pump price instead of treating this example as a current market rate.
Consumption varies with load, equipment condition and operating conditions. Use measured consumption or the manufacturer’s figure at your typical load. A kVA rating is not a litres-per-hour figure. This estimate covers fuel only: oil, servicing, repairs and purchase costs need a separate budget.
Frequently asked questions
Can I enter kVA instead?
No. Obtain litres per hour from measurements or manufacturer specifications at your typical load.
Is maintenance included?
No. The estimate covers fuel only.
Can I budget for fewer days?
Yes. Choose a whole number of operating days from 1 to 31.
Are pump prices automatic?
No. Enter the price you currently pay.