Unanswered or abandoned calls
Start with your phone provider or VoIP dashboard. Pull a normal month of unanswered, abandoned and after-hours calls. If reporting is messy, export the call log and count them.
Free browser-based calculator
Missed-call cost calculator for Australian service businesses
One missed call does not have a fixed cost. Use your own call volume, genuine-enquiry share, conversion rate and initial job value to estimate the revenue and gross profit at risk. The result is not guaranteed lost or recoverable revenue.
Your call numbers
Count calls that rang out, went unanswered or were abandoned before your team helped the caller. Check your phone or receptionist records.
Call input method
%
%
Use your own result from answered phone enquiries. For a clinic, use completed or paid bookings if no-shows are common.
A$
Use the first paid job or appointment, not lifetime value.
%
Enter the share left after direct delivery costs. Leave blank if you only want a revenue estimate.
Your figures stay in this browser tab. The calculator does not ask for your name, phone number or email address.
Your estimate
Your estimate will appear here
Add your own call and business figures to estimate genuine enquiries, potential jobs and revenue at risk.
Transparent assumptions
How the calculation works
Missed calls × genuine new-enquiry share × conversion rate × average initial job value = revenue at risk
If you add a gross margin, the calculator multiplies revenue at risk by that margin to estimate gross profit at risk.
I call the result “at risk” for a reason. Some callers try again. Some leave a message. Others would never have bought. This sizes the possible gap using your records. It does not mean every unanswered call cost you a sale.
Revenue and profit are not the same. Revenue is the value sold before expenses. Gross profit takes out the direct cost of doing the work, so it can be more useful when deciding what the problem is worth fixing.
Phone responsiveness can be measured rather than guessed. The Australian Government's Department of Industry, Science and Resources publishes a call-answering service standard for its own business.gov.au contact centre. It is not a benchmark for your business. Read the department's business.gov.au service information.
Ready to reduce the number instead of only measuring it?
My AI receptionist starts at A$249 per month and answers simultaneous and after-hours calls 24/7. That removes missed calls caused by a busy team, limited staff or the phone ringing outside business hours.
See how to get to zero missed callsUse records, not benchmarks
Where to find each number
Genuine new-enquiry share
Review a sample and remove obvious spam, supplier calls, existing-customer updates and internal administration. Keep the estimate conservative when you cannot identify a caller.
Conversion rate
Match answered, qualified phone enquiries to paid jobs in your booking system or CRM. A quote request is not a paid job. For appointments, completed paid bookings may be the better measure.
Average initial value
Use the first invoice, appointment or booking value. Lifetime value adds another assumption, so assess repeat work separately if you need to.
Gross margin
Use the share left after direct delivery costs such as labour, materials or consumables. If you are not confident, leave it blank and check with your bookkeeper or accountant.
Worked example
What the maths looks like
Say a Melbourne service business records 60 unanswered or abandoned calls in one month. The owner checks the log and estimates 70% were genuine new enquiries. The business converts 50% of qualified phone enquiries, and its average first job is worth A$300.
60 × 70% × 50% × A$300 = A$6,300 per month
- 42 genuine missed enquiries
- 21 potential jobs at risk
- A$6,300 monthly revenue at risk
- A$75,600 annual revenue at risk
Add a 60% gross margin and the estimate is A$3,780 in monthly gross profit at risk, or A$45,360 per year.
Compare the cost of a fix
My AI receptionist is A$249 per month, month to month. In this example, two extra A$300 jobs at a 60% gross margin would cover that monthly fee in gross profit.
That does not mean it will recover all A$6,300, or even guarantee two jobs. It gives the owner a clear cost to test against the same call records before and after setup.
See how the A$249 AI receptionist worksThese are example inputs, not Melbourne benchmarks. Replace every figure with your own data before making a decision.
Keep the result in context
What the estimate does not tell you
It cannot tell you why calls are missed. They may arrive after hours, while everyone is on a job, during lunch, in a queue or when the person on the phone is helping someone else.
It also cannot choose the right fix. You could change the roster or call routing, bring in overflow support, send a missed-call text or use an AI receptionist with clear escalation rules. An AI receptionist can answer simultaneous and after-hours calls, so a second caller does not have to wait for the first conversation to finish.
If you are considering automation, read my guide to AI receptionists for Melbourne service businesses. It explains what the system can handle and when a person should take over.
If calls are only one part of the problem, read about my lead generation approach for Melbourne service businesses.
Before buying a fix
A simple seven-day call check
- 1Export every inbound call with its time and outcome.
- 2Mark which unanswered calls were likely new enquiries.
- 3Record whether each caller tried again, left a message or received a response.
- 4Match genuine enquiries to quotes, bookings and paid jobs.
- 5Note when most calls are missed, including after hours and busy periods.
- 6Put the monthly equivalent into the calculator.
- 7Run the same check after you change the way calls are handled.
Now you have a baseline. Without one, you can buy a solution and still have no idea whether the gap got smaller.
Cover every call, including after hoursFAQ
Missed-call calculator questions
- How much does one missed call cost?
- There is no honest universal dollar figure. One missed call might be spam. The next could be a valuable customer. Estimate it from the chance that the call was a genuine new enquiry, your normal conversion rate and your average initial job value.
- Should I count every missed call as a lead?
- No. Remove obvious spam, suppliers, administration calls from existing customers and calls handled through another channel. Counting every missed call as a potential sale inflates the result.
- Should I use average job value or customer lifetime value?
- Start with the initial paid job or booking value. Lifetime value includes repeat business that might never happen. If you have reliable retention data, assess repeat value separately.
- What is the difference between revenue at risk and gross profit at risk?
- Revenue at risk is the estimated value of potential work before expenses. Gross profit at risk applies your gross margin to allow for direct delivery costs. Neither figure is the same as net profit.
- How accurate is this calculator?
- It is only as useful as the numbers you enter. Actual call logs, a reviewed sample of new enquiries and your own conversion records beat assumptions. Even then, it cannot predict what an individual caller will do or guarantee future sales.
- What if callers leave a voicemail or ring again?
- Include those outcomes in your review. If a missed caller books later, the opportunity was delayed rather than lost. Remove recovered enquiries from the missed-call count or lower the genuine-enquiry share, then use the same method each time.
- Can an AI receptionist recover all of the estimated revenue?
- No system should promise that. Some calls will not be suitable, some callers will not go ahead and some enquiries need a person. Compare the same call outcomes before and after any change instead of assuming a fixed recovery rate.
- Is this calculator suitable for clinics?
- Yes, if the clinic uses its own figures and treats bookings carefully. Where no-shows matter, use completed or paid appointment value. Call handling that involves health information also needs appropriate privacy controls, limited access, clear escalation and human oversight.
Ready to get to zero missed calls?
My AI receptionist can answer simultaneous and after-hours calls 24/7, so genuine enquiries do not ring out because your team is busy, unavailable or already on another call. It starts at A$249 per month.
Tell me roughly how many calls you miss and what happens to them now. I will help you work out the next practical step.
This calculator provides a directional business estimate from the figures you enter. It is not financial advice, an audit or a forecast of revenue that any service will recover. Actual results depend on call quality, availability, follow-up, pricing, capacity and whether the caller was suitable.