Free tool
What are the calls nobody answers costing you?
Say how many calls go unanswered in a normal week, how many of those would have been new enquiries, and what one is worth to you. This turns that into enquiries and money a month and a year.
How this works it out
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Lost enquiries a week
Unanswered calls a week multiplied by the share that are new enquiries gives lost enquiries a week.
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A month, and a year
That becomes a month by multiplying by 52 and dividing by 12, and a year by multiplying by 52.
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The value
The value is those enquiries multiplied by your conversion rate and by the average value you gave.
A year here is 52 calendar weeks, because the phone rings in every week you are open. If you shut for a fortnight, the yearly figures are about four per cent high. The hours based tools on this site use a 46.4 week working year instead, and the difference is explained on the methodology page.
The page opens on a worked example so the sum is visible before you type anything, and the figures it opens with are round placeholders rather than anything we are putting forward as typical.
What this does not do
- Tell you why the calls go unanswered
- Tell you what to do about it
Some of them are a staffing problem, some are an opening hours problem, and some are the kind of enquiry that asks the same three questions every time. Which is which is what the free audit is for, and it is also why this page stops at the number.
Questions people ask
- What counts as a missed call?
- A call that rang out, went to voicemail with no message, or reached someone who could not deal with it and never got passed on. If you called the person back the same day and picked the job up, it is not lost, so leave it out.
- Why does it ask me for the conversion rate?
- Because we do not know it and neither does anybody who quotes you an industry average. The share of enquiries you win is specific to your business, your prices and the kind of work you take. The figure the page opens with is a placeholder to show the sum working, not a benchmark. Use the rate you already see on the enquiries you do answer.
- Is this the same as lost revenue?
- Only if the caller never came back and never went to a competitor, and you can rarely know that. Treat it as the value that was at risk in those calls rather than money definitely gone. It is still the clearest number you can put on the problem.
- Do you store what I type?
- Your figures are not. The sums run in your browser and the numbers you type are never sent to us. We do count that a tool was used, with no figures attached, so we know which tools are worth keeping. The one thing that reaches us is the summary on the button at the end, and only if you press it, because that button puts the same summary into the audit form in front of you, where you can edit or delete it before sending anything. No cookies, no tracking, nothing stored on your device.
Where these numbers come from
- Nothing here but your own figures . This tool uses no public rate and no industry average. The page opens on a worked example and every box in it is meant to be typed over, after which every number in the result is one you supplied. A year is 52 calendar weeks, because the phone rings in every week you are open.
Last checked 19 September 2026.
Our workings are on the methodology page .
The real number
This is an estimate. The audit is the count.
A calculator works from what you typed. The free audit works from your actual week: every repeated job, ranked by the hours it eats, with a map of the five worth doing first. It costs nothing and you keep the lot.
Other free tools
- Cost of admin time What the jobs you repeat every week cost in hours and in money
- True cost of an employee Salary plus employer National Insurance, pension, recruitment and kit, per year and per hour
- Cost of chasing late invoices The hours chasing invoices costs, and the interest and compensation the law lets you claim
- Quote turnaround What is sitting unsent in your quote queue, and what a win rate you set would be worth
- Which tasks run on rules Sort the jobs you repeat into rules based, needs a person, and needs a closer look
Guides that go with this
- How we work out the numbers Every assumption behind the free tools, and where each rate comes from
- Cost of admin time What the jobs you repeat every week cost in hours and in money
- True cost of an employee Salary plus employer National Insurance, pension, recruitment and kit, per year and per hour
- Cost of chasing late invoices The hours chasing invoices costs, and the interest and compensation the law lets you claim
- Quote turnaround What is sitting unsent in your quote queue, and what a win rate you set would be worth
- Which tasks run on rules Sort the jobs you repeat into rules based, needs a person, and needs a closer look