How accurate is this calculator?

This calculator uses industry-average data from telecommunications research and our analysis of 10,000+ small business phone lines. Your actual numbers may vary, but the missed call rates and conversion percentages reflect real-world benchmarks for each industry.

What's the industry average for missed calls?

Across all service businesses, the average missed call rate is 23%. Some industries are higher — home services businesses miss up to 31% of inbound calls, while medical practices average 25%. The rate is highest when staff are occupied with in-person clients.

How does FrontDeskOS recover this revenue?

FrontDeskOS is an AI receptionist that answers 100% of your inbound calls 24/7. It sounds natural and professional, books appointments, qualifies leads, answers FAQs about your business, and routes urgent calls. Customers see a 94% reduction in missed calls on average.

What does FrontDeskOS cost?

FrontDeskOS is $499/month with no long-term contract. That includes 24/7 call answering, appointment booking, lead qualification, integrations with your existing tools, and free onboarding. No credit card required to start.

How do I calculate missed call ROI?

Missed call ROI measures the return on investing in a solution vs. continuing to lose revenue. Take the revenue recovered per month (missed calls × conversion rate × average booking value × 94% recovery rate), subtract the $499/month cost, and divide by $499. Most FrontDeskOS customers see an 8:1 to 30:1 missed call ROI within the first month.

Can I try FrontDeskOS before committing?

Yes — FrontDeskOS offers a free trial with no credit card required. Most businesses go live within 48 hours and see measurable results within the first week.

Free Revenue Calculator

How Much Revenue Are You Losing to Missed Calls?

Enter your numbers below. See exactly what missed calls cost your business — and how much you could recover.

Select Your Industry

Monthly Inbound Calls400

502,000

Total calls your business receives per month

Missed Call Rate23%

5%60%

Industry avg: 23%

Avg Revenue Per Booked Call$450

$50$3,000

Average value of a booked appointment or job

Lead-to-Booking Conversion Rate35%

10%80%

What % of answered calls become paying customers

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Adjust the sliders and click Calculate to see your results

The Real Cost of Missed Calls

The cost of missed calls is worse than you think

Research shows that 23% of inbound calls to small and mid-size service businesses go unanswered. That number climbs during peak hours, lunch breaks, and after 5pm — exactly when many customers are searching.

Here's what makes it painful: 78% of customers book with the first business that answers. And 85% of callers who reach voicemail will never call back — they'll call your competitor instead.

For a business receiving 400 calls per month at a 23% miss rate, that's 92 missed calls. At a 35% conversion rate and $450 average value, you're looking at $14,490 in lost revenue every month — or $173,880 per year.

Why it happens — and how to fix it

Missed calls happen because your team is human. They're helping a patient, on another call, at lunch, or it's after hours. The phone rings, nobody picks up, and a potential $500+ booking walks to the next Google result.

FrontDeskOS fixes this by answering 100% of calls in under 2 seconds, 24 hours a day, 365 days a year. It's an AI receptionist that books appointments, qualifies leads, routes urgent calls, and integrates with the tools you already use.

At $499/month — a fraction of a part-time hire — our customers see a 94% reduction in missed calls and a missed call ROI of 8:1 or higher, recovering an average of $4,000–$15,000 in monthly revenue that was previously walking out the door.

Frequently Asked Questions

Stop losing revenue to missed calls.

FrontDeskOS answers every call, books appointments, and pays for itself in the first month. Start your free trial today.

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