Your own count: every call, answered or not.

Calls nobody picks up, including evenings and weekends.

What a typical new customer is worth to you, in dollars, before tax.

Of the callers you do speak to, how many book or buy.

How is the cost worked out?

Four multiplications, in this order:

  1. Calls a week × the share you miss = missed calls a week.
  2. Missed calls a week × the share of callers who become customers = jobs a week you may be missing.
  3. Jobs a week × the average value of a job = what those jobs are worth each week.
  4. The weekly figure × 52 weeks = the yearly figure; the yearly figure ÷ 12 = the monthly figure.

What does the estimate assume?

It assumes the callers you miss would have become customers as often as the callers you answer, and that none of them call back. Some will call back, which makes the real cost lower. If a new customer usually brings repeat work, the real cost can be higher, because the calculator counts one job per customer.

Why doesn't the calculator suggest numbers?

Every business is different, and published figures on missed calls rarely say where they come from. So the calculator starts empty and uses only what you enter. If you don't know your numbers, your phone bill or call log shows how many calls you get, and a week of noting missed calls gives you the share.

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