Yes — the DIME total is your family's gross need. Subtract existing savings, investments, and any life insurance you already have to find how much additional coverage to buy.
Common choices are until the youngest child becomes independent, until a spouse could reasonably re-enter the workforce, or a fixed period like 10–20 years. There's no single correct number — it depends on your family's situation.
DIME is more tailored since it's built from your specific debts, mortgage, and family size rather than a single multiplier, but both are simplified heuristics. A financial advisor can refine this further for your situation.