What do missed calls actually cost you?
A call that hits voicemail is usually a job won by the next business on the list. Enter your numbers below to see the monthly and annual revenue walking out the door — then weigh it against the fix. Everything runs in your browser; nothing you type is collected.
The model
Calls missed / week × average job value × close rate × 4.33 weeks = lost per month
It's deliberately simple, so you can defend every number in it. The 4.33 turns a weekly figure into a monthly one; the close rate keeps you honest, since not every recovered call becomes a paying job. The annual figure is the monthly number across twelve months. This is the same math we walk through in our after-hours answering-service breakdown.
The math is the easy part. The fix is the point.
You've seen the loss. These break down what an answering service costs against it, and how an AI front desk changes the equation.
After-hours answering service
75% of after-hours calls go to voicemail and never come back. Here's the full cost model and where AI wins.
Read the breakdownAI receptionist cost
Human services bill per minute and hide it behind a quote. Here's the flat-rate break-even, in plain numbers.
See the break-evenBest AI receptionist, 2026
What separates a real AI front desk from a glorified voicemail, and how to vet the options.
Compare themAbout this calculator
How does the missed-call cost calculator work?
It runs one simple model: calls missed per week times your average job or customer value times your close rate times 4.33 weeks gives the revenue you lose each month, and times twelve gives the annual figure. Every input is editable, and the math updates as you type. Nothing is sent anywhere — the calculation runs entirely in your browser.
Where do the default numbers come from?
The defaults are a realistic starting point for a small service business, not a quote. About 62 percent of calls to small service businesses go unanswered during the day, and after hours it is worse because no one is there at all. Swap in your own call count, job value, and close rate to get a figure that reflects your business.
Is my data collected or shared?
No. This tool collects nothing. There is no form submission, no tracking of what you enter, and no values leave the page. The calculator is plain JavaScript that runs on your device, so you can model freely without giving up a single number.
Does gmware sell a fixed-price AI receptionist?
No. We build and deploy an AI receptionist onto your existing phone line as a scoped project, sized to your call volume, your scripts, and the systems it books into. There is no off-the-shelf monthly price here. The comparison field in the calculator is for whatever an answering service has quoted you, so you can weigh it against the revenue you are losing.
Stop letting voicemail close your callers for you.
Bring us the number you just calculated. We'll scope an AI receptionist for your phone line and come back with cost and timeline within 48 hours.