Missed call revenue calculator
See a rough estimate of the revenue slipping away each month from calls you cannot answer. Adjust the sliders and the figures update as you go.
- 15 missed calls a week × 50% new business = 7.5 new enquiries missed a week.
- 7.5 enquiries × 80% who go elsewhere = 6 lost jobs a week.
- 6 lost jobs × £250 = £1,500 a week.
- Over a year that is roughly £78,000.
What missed calls really cost a local business
Every unanswered call is a customer with money to spend and a job that needs doing. When you are up a ladder, under a sink, or driving between jobs, you cannot pick up. The caller does not wait. Studies of small-business phone habits show that most people who hit a voicemail or a ringing line hang up and dial the next business on the list.
The problem is that missed calls are invisible. There is no receipt for the job you never heard about. That is why this calculator matters: it turns a vague worry into a rough pound figure you can weigh against the cost of fixing it.
How to use the numbers
Start with a realistic count of calls you miss in a normal week. Be honest about the share that are genuine new enquiries rather than suppliers, existing customers, or spam. Set your average job value to a typical booking, not your biggest ever. The default of 80% for callers who go elsewhere reflects how quickly people move on, but you can lower it if you have a strong reputation and loyal customers who leave messages.
Treat the result as a ceiling on the opportunity, not a bill. Even a fraction of that figure captured through faster answering or a call-back system can pay for itself many times over. The point is to know the number, then decide whether it is worth acting on.
Frequently asked questions
The tool multiplies your missed calls by the share that are new business, then by the share of callers who go elsewhere, then by your average job value. It scales that weekly figure to a month and a year. Every number is an estimate based on what you enter.
Research on small-business calls suggests most people who reach a voicemail or an unanswered line simply ring the next business rather than wait for a callback. The default is 80%, but you can change it to match your experience.
No. It is an estimate to show the scale of the opportunity, not a promise. Your real numbers depend on your call volume, your conversion rate, and how quickly you follow up.
Stop losing jobs to missed calls
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