Missed Call Rate: How to Measure Yours From a Month of Call Logs

Turn your rate into a costDownload the four-week call tally sheet (PDF)

What a missed call rate actually measures

Your missed call rate is the share of genuine enquiries that did not get a useful answer in time. Written as a formula: missed enquiries ÷ all enquiries × 100. The trouble is in the word "missed", because the list on your phone gets it wrong in both directions.

It counts too much: robocalls, a supplier, a customer you are already working for, and the same person ringing three times while you were on a ladder. And it counts too little: a call you answered at 6pm, returned from a voicemail left at 9am, does not show as missed even if the caller had already booked someone else at 9:15.

So before working out a rate you need two decisions, written down so every count uses the same rules. First, what is not an enquiry (spam, suppliers, existing customers about current work). Second, your callback window: how quickly a returned call still counts as answered. One hour during opening hours is a reasonable starting rule for most trades; a business whose callers are comparing quotes the same morning may want less.

How to measure it, step by step

1. Choose a callback window

Write it at the top of the tally sheet that comes with this post. Changing it later makes two counts impossible to compare.

2. Get a month of call history

Most business phone systems and VoIP services have an online call log you can export. A mobile phone's recent calls list is fine too, as long as it covers the whole period; some phones only keep a limited number of entries, so screenshot it weekly if yours does. If your business line is a Google Voice number, your call history can also be downloaded with Google's download-your-data tool.

3. Remove calls that are not enquiries

Cross out spam, sales pitches, suppliers and existing customers asking about work in progress. What is left are people who might buy.

4. Merge repeat callers

Treat the same number calling more than once on the same day as one enquiry. Persistent callers are a good sign, but they are one person.

5. Sort and divide

Mark each remaining enquiry with one of four labels: answered live, returned within the window, returned late, never returned. Your missed call rate is the last two added together, divided by the total.

6. Split the misses by hour and weekday

Tally the missed ones by time block: before opening, morning, lunch, afternoon, after closing, and weekends. This is the step that turns a percentage into a decision.

A worked example

A small electrical contractor exports four weeks of calls: 152 in total. Removing 34 spam and supplier calls and 9 existing customers leaves 109. Merging people who rang more than once on the same day takes it to 100 enquiries, a convenient number for the example.

Sorted: 64 answered live, 16 returned within the hour, 12 returned later that day or the next, and 8 never returned. The missed call rate is (12 + 8) ÷ 100 = 20%.

The split by time block is where it gets useful. Of the 20 misses, 7 came between 12 and 2pm, when the owner and the only other electrician were both on site, and 6 came after 5pm. Mornings, when the office manager is in, produced 3. So the fix is not "answer more calls". It is covering lunch, and giving after-hours callers a next step. The chart shows the full split.

Putting 100 enquiries and a 20% miss rate into the missed call cost calculator, with a 30% close rate and a $650 average job, gives $3,900 a month. That is the number to hold any fix against. Our post on what missed calls cost your business explains each input in more detail.

Reading the result

There is no single "good" missed call rate, because it depends on how many calls you take and who answers them. What matters is the pattern and the trend:

• Misses bunched in one block of the day mean a coverage gap. Someone else answering, call forwarding to a colleague, or a fixed callback time after that block will move the number most.
• Misses spread evenly mean the phone gets more calls than the people answering it can take. That is a staffing or answering-service question.
• Mostly "returned late" rather than "never returned" is the cheapest problem to fix. A rule that every voicemail is returned within the window costs nothing.
• Mostly after hours calls for a voicemail greeting that tells people exactly what happens next, ideally with a link to book online.

Count again in three months, with the same window and the same exclusions. A falling rate is the only proof that a change worked.

Calls are only half of it

Run the same four-bucket sort on web forms, emails and social messages. They are easy to forget because nothing rings, and a form that sat unread over a weekend is a missed enquiry just like an unanswered call. In many service businesses the slowest channel is not the phone at all.

Keeping every non-phone enquiry in one place is what Fynl's portal is built for: forms, website chat and your Gmail inbox arrive in one place, each one filed on a contact, so nothing depends on checking four apps. It does not answer or log phone calls, so the call side of this count stays with your phone system.

The calculator is one of several free tools for small businesses; none of them needs an account.

Questions people also ask

Sources

• Google Account Help — How to download your Google data
• Harvard Business Review — The Short Life of Online Sales Leads (2011)