About this calculator
Break-even analysis keeps upgrade decisions honest. If the efficient variant needs nine years to pay back and you sell at four, the maths is speaking clearly.
Feed annual savings from our fuel comparison tools for a coherent workflow.
Formula summary
break-even years = premium ÷ annual saving.
Assumptions
- Ignores inflation, opportunity cost of capital and resale differences.
- Savings must be realistic — do not use brochure-best fuel figures.