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    Missed Call Calculator — free, no signup

    What missed calls
    actually cost you.

    The average small business misses 20–40% of inbound calls. Each one is a lost customer. This free missed call calculator shows what it's costing you in 30 seconds.

    Your numbers

    Start with your industry

    calls

    Total phone calls your business receives per month

    %

    Percentage of calls that go to voicemail or get abandoned

    $

    Typical revenue from one new customer (annual or lifetime)

    %

    Of the people who do reach you, what % become customers

    Your results

    You're losing

    $1.8M

    per year, conservatively

    Missed calls / month180
    Lost customers / month126
    Lost revenue / month$151,200

    Orbit could recover

    $1.5M

    per year (conservative 85% capture)

    Calls captured / month153
    New customers / month107
    Recovered revenue / month$128,520
    Book a 15-min demoLearn more about OrbitRun a dental practice? See the dental AI receptionist
    Methodology

    How the math actually works.

    1

    Missed-call rate × call volume

    Most small businesses miss 20–40% of inbound calls during business hours; closer to 100% after hours. Multiply by your monthly calls to get the missed total.

    2

    Close rate × missed calls

    Of the people who actually reach your team, a percentage become customers (your close rate). The same close rate would apply to recovered missed calls.

    3

    × Average customer value

    Each new customer is worth a typical revenue (annual or lifetime). Multiply by lost customers to get monthly revenue impact.

    FAQ

    Common questions.

    How is the missed-call revenue loss calculated?▾
    We multiply your monthly call volume by your estimated missed-call rate to get the number of missed calls per month. Of those, a percentage would have become paying customers (your close rate). Each of those would be worth your average customer value. Monthly lost revenue = missed calls × close rate × average customer value. We then multiply by 12 for an annual figure.
    Where do the industry averages come from?▾
    The preset starting values come from publicly reported industry benchmarks for call volume, answer rates, and average transaction value. They're starting points — adjust every field to match your actual numbers for an accurate estimate.
    How much of my missed calls would an AI receptionist actually capture?▾
    Our calculator assumes Orbit Online's AI receptionist answers 85% of missed calls productively. The other ~15% are typically spam, wrong numbers, or callers who hang up before speaking. This is a conservative assumption — the AI itself picks up virtually every call, 24/7.
    How do I calculate missed call revenue for a dental practice?▾
    Select the Dental Practice preset above. It starts from industry benchmarks — 600 monthly calls, a 30% missed-call rate, $1,200 average patient value, and a 70% close rate — then you adjust each slider to match your practice's actual numbers. Dental practices are Orbit Online's core focus, so the AI receptionist handles scheduling, insurance questions, and PMS integration out of the box.
    Is this really free? What's the catch?▾
    The calculator is free — no email gate, no signup. Orbit Online sells an AI receptionist service, so obviously we hope you'll consider us. But the numbers speak for themselves regardless of provider. You can use this to evaluate any answering service.
    Will an AI receptionist actually work for my industry?▾
    Orbit Online's AI receptionist is custom-built per business — not a generic chatbot. It's trained on your business details, integrates with your calendar or CRM, and handles industry-specific workflows (scheduling, insurance inquiries, quote requests, etc.). Dental practices are our productized SaaS; we build custom AI receptionists for any other business.

    See it for yourself.
    15 minutes.

    Book a quick walkthrough — we'll show how Orbit captures your specific industry's calls.

    Book a 15-min demoLearn more