Generator Fuel Cost Calculator Nigeria — Petrol & Diesel
Calculate how much you spend on generator fuel per day, week, month and year in Nigeria. Works for petrol and diesel generators of any size.
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Quick fuel price:
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Fuel Consumption Breakdown
| Period | Litres Used | Cost |
|---|
Generator Consumption Rates Used
| Size (KVA) | Petrol (L/hr at 100%) | Diesel (L/hr at 100%) |
|---|---|---|
| 1 KVA | 0.4 L/hr | 0.3 L/hr |
| 2.5 KVA | 0.8 L/hr | 0.6 L/hr |
| 3.5 KVA | 1.2 L/hr | 0.9 L/hr |
| 5 KVA | 1.5 L/hr | 1.1 L/hr |
| 7.5 KVA | 2.0 L/hr | 1.5 L/hr |
| 10 KVA | 2.8 L/hr | 2.0 L/hr |
Frequently Asked Questions
How much fuel does a 3.5KVA generator use per hour in Nigeria?
A 3.5KVA petrol generator typically consumes about 1.2 litres per hour at full load. At 70% load (typical home use), expect around 0.9–1.0 litres per hour. At ₦700/litre, that is ₦630–₦700 per hour of running time.
Is petrol or diesel cheaper to run in Nigeria?
Diesel is generally more fuel-efficient — diesel generators produce more kilowatt-hours per litre than petrol generators. However, diesel generators cost more to buy. For generators used 6+ hours a day, diesel usually saves money over time despite the higher upfront cost.
How can I reduce my generator fuel costs?
Reduce load by switching off heavy appliances like electric irons and water heaters when on generator. Keep the generator well-maintained — a dirty air filter or old spark plugs can increase fuel consumption by 20–30%. Consider a solar inverter hybrid to cover daytime hours.
What size generator do I need for a Nigerian home?
A 2.5KVA generator handles lights, fans, TV, and a fridge. A 3.5KVA handles those plus a computer and water pump. A 5–7.5KVA handles a small air conditioner. Size up: always choose a generator where your normal load is 70–80% of rated capacity for longevity.