They compare what the customer has with what a loss would actually cost. The homeowners calculator multiplies finished square footage by a local rebuild cost, adds a cushion for cost surges and shows the shortfall against the current Coverage A — the insurance-to-value conversation most renewals skip.
The homeowners coverage calculator also derives other structures, personal property, loss of use and ordinance-or-law amounts as editable percentages of Coverage A. The condo HO-6 calculator starts from the association's master policy type, and the renters calculator contrasts replacement cost with actual cash value and flags jewelry above theft sub-limits.