Calculate how much revenue your business is losing to missed calls, and see the ROI of fixing it.
This calculator helps small business owners understand the true cost of missed calls by:
- Calculating Lost Revenue - Uses industry-specific customer values to estimate daily/monthly/annual losses
- Projecting AI Receptionist ROI - Shows payback period and return on investment
- Generating Shareable Reports - Creates personalized reports business owners can share
The average small business misses 30% of incoming calls.
For service businesses, each missed call represents:
- A potential customer going to a competitor
- Revenue that's permanently lost
- Negative word-of-mouth (unanswered calls frustrate callers)
| Industry | Avg Customer Value | Miss Rate Impact |
|---|---|---|
| Dental | $285/patient | High - people call during emergencies |
| HVAC | $387/job | Critical - urgent repair needs |
| Plumbing | $412/job | Critical - water damage costs time |
| Law Firm | $5,000/case | Very High - one missed call = lost case |
| Real Estate | $8,500/commission | Very High - hot leads call once |
| Medical | $195/visit | High - patients schedule elsewhere |
| Auto Repair | $315/service | Medium - customers shop around |
| Insurance | $1,200/policy | High - quotes are time-sensitive |
Input:
- Industry: Dental Practice
- Calls per day: 30
- Current answer rate: 72%
- Average customer value: $285
Output:
- Missed calls per day: 8.4
- Daily lost revenue: $2,394
- Monthly lost revenue: $71,820
- Annual lost revenue: $873,090
AI Receptionist ROI:
- Cost: $2,500/month
- Additional revenue captured: $57,456/month (80% of missed)
- ROI: 2,198%
- Payback: 1.3 days
This is a Cloudflare Worker. Deploy your own:
git clone https://github.com/rftxcom/missed-call-calculator.git
cd missed-call-calculator
npm install -g wrangler
wrangler deploycurl -X POST https://calculator.rftmedia.com/calculate \
-H "Content-Type: application/json" \
-d '{
"industry": "dental",
"callsPerDay": 30,
"answerRate": 72
}'Response:
{
"missedCalls": 8.4,
"lostRevenue": {
"daily": 2394,
"monthly": 71820,
"annual": 873090
},
"aiReceptionist": {
"monthlyCost": 2500,
"monthlyRecovery": 57456,
"roi": 2198,
"paybackDays": 1.3
}
}Most business owners know they miss calls. They don't know:
- How many calls they miss (actual number)
- What those calls are worth (dollar impact)
- How to fix it (solutions exist)
This calculator makes the invisible visible. Once you see "$800k/year lost," the problem becomes urgent.
- Phone System Grader - Grade your phone setup A-F
- ROI Report Generator - Shareable ROI reports
- AI Receptionist Demo - Try it yourself
MIT License - Free to use and modify.
RFT Media - AI automation for small businesses.
Star ⭐ if this helped you understand your missed call problem!