How much does a missed call cost your business (and how to calculate it)
20 July 2026
A missed call doesn't feel like much: the phone rings, nobody picks up, life goes on. The problem is that behind most of those calls there is a person, card in hand, who wanted to book an appointment, ask a price or solve something urgent.
In this article you'll get a simple formula to put a number on your missed calls, benchmark figures by type of business and the options you have to stop losing them.
Why missed calls hurt more than they seem to
Industry studies agree on two uncomfortable facts: local businesses miss between 20 and 30 percent of the calls they receive, and the vast majority of callers who hit voicemail never leave a message. They simply dial the next result on Google.
A missed call almost never comes back. Someone who wanted an appointment for today or tomorrow won't wait for your evening callback: by then they already have a slot somewhere else. The real cost isn't the call, it's the customer another business just gained.
The formula to calculate your cost
You don't need a complicated spreadsheet. Three numbers give you an honest estimate of what unanswered calls cost you every month:
- ✓Missed calls per month: check your phone's call log, that part is easy.
- ✓Share of callers who wanted to book: in appointment businesses it's usually between 50 and 70 percent.
- ✓Average ticket of an appointment: what an average visit brings in.
An example with real numbers
Picture a hair salon missing 25 calls a month. If 60 percent wanted to book and the average ticket is 35 euros, that's 15 bookings and 525 euros a month: over 6,000 euros a year. Not counting that a well-served new client comes back many times.
For a dental clinic or a veterinary clinic the maths gets scarier, because a first visit can turn into a treatment worth hundreds or thousands of euros. There, a single missed call a week already justifies fixing the problem.
Three ways to stop missing calls
Hiring more front-desk staff works, but it's the expensive option: a full salary to cover call peaks and hours when nobody may walk through the door.
Voicemail or a traditional answering machine is cheap, but you already know the outcome: people don't leave messages, they hang up and call someone else.
The third option is an AI receptionist like 0miss: it answers the calls your team can't take, books appointments into your real calendar 24/7 and sends you a summary of every call on WhatsApp. It costs less than one hour of staff time a day and never goes on holiday.
Run the numbers with your own figures this week: missed calls times booking share times average ticket. If the monthly result is higher than the cost of a solution, every month that passes you are paying for the problem without fixing it.
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