About this calculator
Insurance is mandatory and easy to under-budget after year one when NCB and IDV both move. A structured estimate keeps renewals from surprising you.
Always compare live quotes — underwriting loadings for age, city and claims can exceed this sketch.
Formula summary
OD = IDV × rate × (1 − NCB); total ≈ OD + TP + add-ons.
Assumptions
- Third-party premiums follow regulatory schedules that change; enter current TP if known.
- NCB applies to own-damage in this simplified model.
- Not an insurer quote.