Free business phone tool
What are missed calls costing your business?
A missed call is not automatically a lost sale, so this calculator applies your own close rate instead of treating every caller as revenue. Use a preset as a starting point, then replace it with numbers from your call logs and completed jobs for a more useful estimate.
Estimate your missed-call opportunity
Use an industry preset, then replace it with your actual average job value and qualified-call close rate.
Formula: missed calls/week × 4.33 weeks/month × average value × close rate. This is an opportunity estimate, not a promise that every answered call converts.
Common questions
Use the result with the right context
How does the missed-call cost calculator work?
It multiplies missed calls per week by 4.33 weeks per month, average customer or job value, and the percentage of qualified calls you normally close. The annual estimate is the monthly result multiplied by 12.
Why does the formula use 4.33 weeks per month?
A calendar year has 52 weeks. Dividing 52 by 12 gives about 4.33 weeks per average month, which is more accurate than assuming every month has exactly four weeks.
Is every missed call really lost revenue?
No. Some callers try again, are not qualified, or would not buy. That is why the estimate uses a close rate. For a conservative result, count only calls that appear to be new-customer opportunities and use a lower close rate.
How can I reduce revenue lost from missed calls?
Start by measuring unanswered calls by hour and call type. Then add coverage for the gaps with call forwarding, a trained receptionist, an answering service, or an AI receptionist that can answer questions, capture details, and route urgent callers.
Put better coverage to work
Stop letting good calls end at voicemail.
Try PhoneMachine for your business, or hear a personalized AI receptionist handle your own customer questions.