Free tool · No signup

Missed call cost calculator

How much revenue does your locksmith shop lose every month because nobody is answering the phone? Drag the sliders. Find out in ten seconds.

Answer first
A typical mid-size mobile locksmith shop (3 trucks, 18 calls/day, 35% missed) loses about $15,500 per month to unanswered calls — which annualizes to $186,000 per year. The calculator below estimates your specific leak using seven inputs (call volume, miss rate, booking rate, ticket size, work days, after-hours share, seasonal uplift). At TheKeyBot's $500/month flat rate, an AI receptionist typically recovers 85-95% of that leaked revenue.

Your numbers

Drag the sliders to match your shop. Results update instantly.

18 calls
1100
35 %
080
Typical mobile locksmith: 30-45% missed across a 7-day week.
55 %
1090
How many calls convert to a booked job when you actually answer.
215 USD
50800
Lockouts: $65-120. Key replacement: $150-400. Your blended average.
26 days
1531
38 %
0100
Share of total call volume that arrives outside business hours.
0 %
0100
Leave at 0 for average months. Set to 30-50% for peak summer.

Your leak

Revenue walking out the door each month because the phone isn't being answered.

Missed calls / mo
164
After-hours misses
62
Lost bookings / mo
90
Lost revenue / mo
$19,369
Annualized
$232,432
Revenue leaking per year at these inputs.
Severe revenue leak — you should fix this today

At this volume, every week of delay costs thousands. You are actively losing customers to competitors who picked up the phone first. TheKeyBot's AI captures ~90% of the calls you're missing — at your current numbers that's life-changing revenue within the first month.

With TheKeyBot ($500/mo)
Estimated recovery (~90% of misses)$17,432/mo
– TheKeyBot cost– $500/mo
Net gain$16,932/mo
ROI multiple on cost: 33.9×
Start a 14-day trial

No credit card. Live in 1-4 business days.

How this calculation works (in plain math)

We want you to be able to verify the numbers, so nothing is hidden. The calculator uses:

monthly_calls       = calls_per_day × work_days × (1 + seasonal_uplift)
missed_calls        = monthly_calls × missed_pct
lost_bookings       = missed_calls × booking_rate
lost_revenue_month  = lost_bookings × avg_ticket
lost_revenue_year   = lost_revenue_month × 12

// TheKeyBot recovery model
recovered_monthly   = lost_revenue_month × 0.9
net_monthly_gain    = recovered_monthly − $500  // TheKeyBot flat cost
roi_multiple        = net_monthly_gain / 500

The 0.9 recovery factor reflects real-world AI conversion rates — not every missed call converts to a booking even when answered (some callers are out of service area, price shopping, or non-commercial). We use the conservative industry median.

Assumptions, caveats, and where your number might be off

Defaults are tuned for mobile / automotive locksmith shops. If you're a commercial / institutional locksmith with higher tickets and lower volume, bump the ticket up and the call-count down. The math will still hold.

Booking rate is the most sensitive input. If you don't know your booking rate from answered calls, 55% is a safe default for locksmith shops. You can verify it by auditing 100 recent answered calls against your CRM.

After-hours share varies by market. Urban markets with heavy nightlife (Houston, Las Vegas, Miami) run 45-55% after-hours. Smaller markets run 25-35%. This input drives the "your lives get better" side of the math — recovered after-hours revenue means the owner stops working 2 AM shifts.

What the calculator does not include (but that also matters): reduction in no-show rate from in-call deposit collection (usually 15-20% → 2%), Google-review velocity lift (typically 2-3× faster with automated follow-up), and re-engagement revenue from outbound AI calls to unbooked leads. These are directionally additive.

Missed call cost calculator FAQ

How does the missed call cost calculator work?
The calculator multiplies your monthly call volume by your missed-call rate, then by your booking rate, then by your average ticket value. The result is an estimate of how much revenue your shop leaves on the table each month because no one is answering the phone. We also compare that leak to the $500/month cost of an AI receptionist to show net recoverable revenue.
What is a realistic missed-call rate for a locksmith shop?
Industry audits of mobile and automotive locksmith shops consistently show missed-call rates between 30-45% across a 7-day week, with after-hours (6 PM to 8 AM) driving most of the miss. Shops without any after-hours coverage (no answering service, no AI) miss 55-70% of calls that arrive outside business hours.
Why do you assume a 90% recovery rate with an AI receptionist?
AI receptionists (like TheKeyBot) answer 100% of calls but don't convert 100% — some callers are price-shopping, out of service area, or spam. Across our customer cohort, AI-handled after-hours calls convert to booked jobs at 55-65% when the AI has your pricing + dispatch rules loaded, vs. 8-12% for voicemail messages that get returned. 90% is the share of previously-missed revenue the AI typically recovers; the remaining 10% is truly lost.
Does this calculator apply to non-locksmith service businesses?
The math is the same for any service business where inbound calls drive bookings — plumbers, HVAC, garage door, towing, emergency restoration, pest control. The default inputs (average ticket, after-hours share) are tuned for locksmith shops, but you can drag the sliders to match your trade.
Is the calculator conservative or aggressive in its estimates?
Conservative. We use industry-median inputs, not best-case numbers. We also exclude second-order upside (Google review lift, deposit-collection no-show reduction, re-engagement of unbooked leads) that actually add 15-25% more revenue in practice.
Can I embed this calculator on my own site?
Yes — we'll have an embeddable iframe version available in Q3 2026. Email contact@thekeybot.com to get early access.

Stop the leak

14-day free trial. Live in under a week.

Start free trial

© 2026 TheKeyBot. All rights reserved.

Arlington, TX·(817) 586-9634
Book a Demo