Last updated: Jan 26, 2026 · Methodology v2026.01.1
Voicemail Cost Calculator
Estimate revenue lost when calls go to voicemail instead of booking.
← More calculatorsWhat you'll need
- Voicemail volume and conversion rate.
- Average customer value and gross margin.
What you'll get
- Monthly and annual loss ranges.
- Profit impact using gross margin.
Worked example
How the number is worked out
A roofing company whose voicemails get returned when somebody remembers.
Starting from
Working
A voicemail is a missed call from somebody who tried twice. Sixty percent going unreturned is the figure doing the damage here — the callback discipline matters more than the missed call did.
How this was calculated
Methodology v2026.01.1. These estimates are directional and depend on inputs and assumptions.
- Voicemail volume × conversion rate to estimate lost customers.
- Average customer value drives revenue impact.
- Gross margin optional for profit impact.
- Ranges reflect conservative conversion assumptions.
FAQ
Are voicemail conversions assumed to be zero?
No. We assume a conservative recovery rate and show the difference.
Are these estimates exact?
No. They are directional so you can see the size of the leak before refining assumptions.
Can I change the assumptions?
Yes. Adjust the inputs to reflect your business and rerun the numbers.
Why use a range instead of a single number?
Ranges reflect uncertainty and help you stress-test best and worst cases.
Does this include profit?
Use the gross margin input to translate revenue impact into profit impact.
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