Why should a marketer add needs calculators to insurance client sites?
Because it improves the metric clients care about: conversations with people who actually need cover. A quote form measures volume; a calculator lead shows the coverage gap, the campaign and the page. That lets you prove lead quality, not just cost per lead, and it differentiates your service from marketers who deliver the same template to every agency.
Calculators also give you content to promote. A life insurance needs calculator or HSA vs traditional plan calculator is a campaign destination in itself, especially around life events and open enrollment.