About this calculator
Running cost is more than petrol. Insurance renewals, service, tyres and the quiet drain of depreciation dominate long-term maths.
This calculator leans on CarDecision’s OwnershipEngine so the same assumptions power our 5-year, 10-year and TCO views.
Formula summary
OwnershipEngine: EMI interest + fuel + insurance + service + repairs + tyres + battery − resale.
Assumptions
- Insurance, service and repair reserves use your inputs or site default percentages.
- Resale residual is an assumption, not a live market bid.
- All totals are indicative estimates — not guarantees of future costs.