Enter your call gap
Estimate how many inbound calls your business misses on an average day.
Free missed-call ROI calculator
How much are missed calls quietly costing you?
Estimate the revenue opportunity hidden in unanswered calls, then see the practical next step for turning more callers into booked customers.
Calculate my missed-call cost ↓Tune it to your business
These are the only three numbers that matter. Be honest — the real picture is usually bigger than you think.
Calls you miss per day3
Voicemails, after-hours calls, "I'll call them back" — they all count.
How many would you actually win30%
Your realistic close rate on those leads if you'd reached them.
What a customer is worth to you$500
Average value of one job or new customer.
You're losing about
$16,425 / month
roughly $197,100 walking out the door every year
What you're losing$16,425/mo
Voice AI System$697/mo
Your Voice AI System would pay for itself about 23× over — every month.
Estimates are illustrative and based on the numbers you enter. Your actual results depend on your business.
What is it?
What is a missed-call ROI calculator?
A missed-call ROI calculator translates unanswered phone opportunities into a simple revenue estimate. It combines your average number of missed calls, the percentage of those callers you could convert, and the value of a new customer.
The result gives you a practical benchmark for deciding whether better call coverage is worth prioritizing. You can then compare the estimate with Ignite's AI voice agent services.
A prospect callsThey already have intent and chose your business.
The call goes unansweredBusy staff, after-hours demand, or a long hold creates friction.
The opportunity moves onMany callers simply contact the next available provider.
How it works
Three inputs. One useful estimate.
The calculator follows a transparent process you can check against your own reporting.
Add conversion potential
Choose a realistic close rate for the qualified callers your team could reach.
See monthly and annual impact
The calculator multiplies those inputs by customer value and updates instantly. If scheduling is the bottleneck, explore appointment-booking automation.
What to enter
The information you need
Use measured numbers when you have them. If not, begin with conservative estimates and revisit the calculation after checking your phone records.
Missed calls per day
Review call logs for ring-outs, voicemail, after-hours calls, and abandoned holds. Divide the total by the number of calendar days represented.
Close rate
Use the percentage of qualified phone leads that become paying customers—not your conversion rate for every website visitor.
Customer value
Enter average job revenue for a top-line view, or average gross profit when you want a more conservative estimate.
The formula
How lost revenue is calculated
The estimate assumes each missed call is a potential lead, then applies your close rate so it does not treat every caller as a guaranteed sale.
Use 365 days when your phone receives calls every day. For business-day-only demand, convert your call count to a calendar-day average before entering it.
Missed calls/day × 365 × close rate × customer value = annual opportunity
Annual opportunity ÷ 12 = monthly opportunity
Worked example
What the math looks like
Here is the calculator's default scenario, step by step.
Example service business
Missed calls3 per day
Estimated close rate30%
Average job value$500
Estimated opportunity
Potential customers missed328.5 per year
Annual revenue opportunity$164,250
Monthly revenue opportunity$13,688
3 × 365 × 30% × $500 = $164,250 per year. Rounding is applied to displayed currency values.
Why it matters
Why missed calls are expensive for service businesses
Phone leads often have immediate intent. The cost is not only the unbooked job—it can include wasted acquisition spend and lost lifetime value.
Callers need help now
Urgent-service prospects frequently choose the first trustworthy business that answers and can schedule them.
You already paid for attention
Advertising, search visibility, referrals, and brand-building helped create the call. Missing it reduces the return on that investment.
One job can lead to more
A lost first appointment may also mean losing repeat work, maintenance plans, reviews, and referrals. See the roofing case study for a real-world example.
Always-on coverage
How an AI voice agent can help
An AI voice agent can answer overflow and after-hours calls, follow your approved scripts, collect lead details, and take the next useful action while your team focuses on customers. Review the full AI and automation solutions to see how call handling, CRM updates, and follow-up can work together.
- Answer common questions consistently
- Qualify callers using your rules
- Book appointments or capture callback details
- Route urgent or complex calls to a person
- Create a record so follow-up does not rely on voicemail
1
AnswerThe caller gets an immediate, professional response.
2
UnderstandThe agent gathers the reason for the call and key details.
3
Take actionIt books, routes, or records the opportunity based on your process.
4
Hand offYour team receives structured context and can take over when needed.
Frequently asked questions
Questions about the estimate
Is this missed-call ROI estimate guaranteed?
No. It is an estimate based on the numbers you enter. Lead quality, response time, capacity, pricing, seasonality, and sales performance all affect actual results.
Should I enter revenue or profit for customer value?
Use average job revenue to estimate top-line revenue opportunity. Use average gross profit per job if you want a more conservative measure of financial impact.
What counts as a missed call?
Include calls that ring out, reach voicemail, arrive after hours, are abandoned on hold, or are returned too late to win the customer.
What if my business is seasonal?
Run the calculator with separate peak-season and off-season averages, then combine those periods for a more accurate annual estimate.
Can an AI voice agent replace my team?
It is best used as a front-line assistant. It can handle repeatable tasks and coverage gaps while transferring urgent, sensitive, or complex conversations to a person.
How should I validate my result?
Compare the estimate with at least 30 days of phone logs, booked-job data, average invoice value, and your actual phone-lead close rate.
Your clear next step
Turn the estimate into an action plan.
Use the free leak assessment to identify when calls are being missed, what callers need, and where an AI voice agent could create the most value.