📞 Missed revenue

Missed Call Cost Calculator

Find out exactly how much revenue your business loses every month from unanswered phone calls.

Currency:
Calculations use the same logic — only the currency symbol changes
Your business details
Total inbound calls on a typical day
calls
Revenue from a typical new customer
£
% of calls that become customers
%
Days your business is open
days
25%
What percentage of calls go unanswered?
5% — rarely miss calls 70% — frequently missed
💸 Revenue you're losing
📊
Fill in your details above to see your results

How much do missed calls cost UK businesses?

Research consistently shows that missed calls are one of the most significant sources of lost revenue for UK small and medium businesses. When a potential customer calls and gets no answer, they rarely call back — they simply move on to a competitor. For businesses that rely on inbound enquiries, this can represent a substantial portion of potential monthly revenue going unrealised.

The cost varies enormously depending on your industry, the value of each customer, and your typical conversion rate. A dental practice missing 10 calls per week with an average patient value of £400 and a 40% conversion rate could be losing over £6,000 per month in potential revenue. A plumber missing 5 calls per day with a £250 average job value might be losing £2,000–£4,000 monthly.

How is the missed call cost calculated?

The calculator uses the following formula:

Daily lost revenue = Calls per day × Missed call rate × Conversion rate × Average customer value

Monthly lost revenue = Daily lost revenue × Working days per month

For example: 20 calls per day × 25% missed × 30% conversion × £200 value = £300 per day × 22 days = £6,600 per month in potential lost revenue.

What is a typical missed call rate for UK businesses?

According to various industry studies, the average UK small business misses between 20% and 40% of inbound calls. This rises to 50–60% during lunch hours, early mornings, and after closing time. Businesses with a single receptionist or no dedicated phone handler typically have the highest missed call rates.

Do customers call back if they don't get an answer?

Research suggests that fewer than 30% of callers leave a voicemail, and of those, only around half receive a timely callback. The majority of missed callers simply search for an alternative provider — meaning each missed call is very likely a permanently lost customer.

How can I reduce missed calls?

Options include hiring additional reception staff, using a telephone answering service, implementing a call overflow system, or using an AI-powered phone answering solution that handles calls automatically outside office hours or when lines are busy. The right solution depends on your call volume and budget.

Is this calculator free to use?

Yes, completely free. No account, no signup, no payment required. The calculations happen entirely in your browser and no data is stored.