Heating Oil Cost Calculator
Floor Area (m²)
Oil Price ($/litre)
Insulation Level
A heating oil cost calculator estimates annual fuel consumption and running costs for oil-fired central heating systems. Commonly used in rural UK, Ireland, and parts of North America not connected to mains gas.
- 1Annual consumption = floor area (m²) × litres per m² (insulation factor)
- 2Poor insulation: ~25L/m²/year, Average: ~18L/m²/year, Good: ~12L/m²/year
- 3Cost = annual litres × price per litre
- 4Average UK home uses 2,000–3,500 litres per year
100m² average insulation at £0.70/litre=1,800 litres/year = £1,260/year
150m² poorly insulated at £0.75/litre=3,750 litres/year = £2,813/year
After insulation upgrade (poor → good)=~50% reduction in fuel and cost
| House Size | Poor Insulation | Average | Good Insulation |
|---|---|---|---|
| 60 m² | 1,500L | 1,080L | 720L |
| 100 m² | 2,500L | 1,800L | 1,200L |
| 120 m² | 3,000L | 2,160L | 1,440L |
| 150 m² | 3,750L | 2,700L | 1,800L |
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