Missed call cost calculator

The calculator multiplies three things together, and each one is deliberately conservative:

1. Missed calls per month. Your weekly call volume × 4.33 (average weeks in a month) × your missed-call rate. If you don’t know your exact rate, the coverage question estimates it. A 2024 study by 411 Locals that analyzed live call handling across 85 businesses in 58 industries found that only 37.8% of inbound calls were answered by a person — meaning roughly 62% went to voicemail or rang out. Home-service businesses missed calls at an even higher rate. Our highest preset is 32%, which is roughly half of what that research suggests, so the estimate errs on the low side.

2. Callers who never come back. Not every missed call is lost revenue — some people do call again. But research consistently shows most don’t: around 85% of callers who can’t reach a person never call back, and a majority simply contact a competitor instead. The calculator uses 75%, again more conservative than the published figure.

3. Average job or appointment value. Use the value of a typical first job or first visit — not lifetime value. For a dental practice, that’s a new-patient exam, not the years of care that follow. For an HVAC company, the service call, not the eventual system replacement. Using first-transaction value keeps the estimate honest; the real cost of a lost customer is usually several times higher.

Put together: calls per week × 4.33 × missed-call rate × 75% × average value = estimated monthly revenue lost. It’s an estimate, not an audit — but because every input leans conservative, your real number is more likely above it than below it.