What are missed calls costing you?
Three numbers you already know, and an answer you probably don't.
How do you calculate the cost of a missed call?
Multiply the calls you miss each week by the share you would normally win, then by what an average customer is worth. That is revenue walking to a competitor every week. A shop missing 20 calls a week, closing half of them, at $100 a customer, is losing about $4,300 a month.
How this is worked out: weekly missed calls × 4.33 weeks × close rate × average customer value. It counts only the first sale, not repeat business or referrals, so treat it as a floor rather than a full picture. Currency is whatever you use — the calculator does no conversion.
Questions people ask
Straight answers about what the numbers mean — and what they leave out.
Any inbound call nobody answers: rings out, goes to voicemail, or arrives outside opening hours. Most businesses underestimate this because the phone system only reports what was answered — check your carrier or phone system logs for the unanswered count.
The caller rarely waits. In service businesses most people simply call the next result, so a missed call is usually a customer who becomes someone else's regular. This calculator only counts the immediate sale, which makes it a conservative estimate.
Use the share of answered enquiries that turn into a booking or an order. If you don't track it, start with what your team estimates and adjust — the number that matters most in this calculation is average customer value, not close rate.
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