ROI & Pricing
What Is Cost Per Call?
Cost per call is what it costs your business to handle one phone call. You find it by dividing everything you spend on answering the phone, like staff time, an answering service, or software, by the number of calls handled. It turns a monthly bill into a number you can compare against what a call is worth.
Key Takeaways
- Formula: total cost of answering calls ÷ number of calls handled.
- Include everything: wages, the answering service bill, software, and your own time.
- Cost per call only means something next to the value of a call.
- A low cost per call that misses half your calls is not a bargain.
How Cost Per Call Works
Cost per call is a simple division:
Cost per call = total cost of handling calls ÷ number of calls handled
The hard part is the top of the fraction. Be honest about what goes in it:
- Wages, if a person answers. Include payroll taxes and benefits.
- Answering service or software fees, whatever the billing model.
- Phone system costs, the lines and the hardware.
- Your own time, if you are the one picking up. Value it at what you bill.
The bottom of the fraction is calls actually handled, not calls that rang. Missed calls cost you money too, but they belong in a different number: the cost of missed calls.
Example of Cost Per Call
A landscaping company compares three ways to answer 300 calls a month.
A part-time receptionist. Twenty hours a week at the U.S. median receptionist wage of about $17.90 an hour, per the Bureau of Labor Statistics, is roughly $1,550 a month before taxes and benefits. Cost per call: about $5.17, and the phone is only covered half the week.
A per-minute answering service. 300 calls at 3 billable minutes and $1.25 a minute is $1,125. Cost per call: $3.75, billed by the clock, so a busy month costs more.
An AI receptionist. Cira's Growth plan is $159 for 400 conversations, which covers 300 calls with room to spare. Cost per call: about $0.53, and every call is answered, day or night.
Now the denominator that matters. If one call in four books a $400 job, each call is worth about $100. All three options are cheap next to that. The question is which one answers the most calls.
What People Get Wrong About Cost Per Call
Owners chase the lowest cost per call and forget to check how many calls got answered. A receptionist at $5 a call who is at lunch when the phone rings has a real cost per call that includes every job that walked. A service at $3.75 a call that puts people on hold has the same problem.
The fix is to put cost per call next to value per call and abandonment rate. A cheap call that was missed is not cheap. An answered call that books a job is worth far more than it cost, under any billing model.
Cost Per Call vs. Cost Per Lead vs. Per-Call Billing
These three sound alike and are not:
- Cost per call is your internal cost to handle one call, all in.
- Cost per lead is your marketing spend divided by leads generated. It is about getting the phone to ring, not answering it.
- Per-call billing is a pricing model where a service charges you a flat rate per call. It is one input into your cost per call, not the same thing.
Why It Matters
Cost per call turns a confusing set of bills into one number you can act on. It also exposes the real comparison: not "which service is cheapest," but "which one answers the most calls for the least money per call." That framing is why per-conversation billing exists. Run your own numbers in our ROI calculator.
The Bottom Line
Cost per call is everything you spend answering the phone divided by the calls you handle. Count all the costs, including your own time. Then set it next to what a call is worth and how many calls actually get answered. The cheapest cost per call is worthless if the phone keeps ringing.
Frequently Asked Questions
- How do you calculate cost per call?
- Add up everything you spend to answer the phone in a month. That might be a receptionist's wages, an answering service fee, phone system costs, or the value of your own time. Divide by the number of calls handled that month. If you spent $3,000 and handled 300 calls, your cost per call is $10.
- What is a good cost per call?
- It depends entirely on what a call is worth to you. If a booked job is $400 and one in four calls books, each call is worth about $100. Paying $10 to handle it is a great deal. Paying $1 to handle it badly, so that half the callers hang up, is a terrible one. Judge cost per call against value per call, never on its own.
- What is the cost per call with an AI receptionist?
- Usually well under a dollar. Cira's Starter plan is $59 a month for 200 conversations, which works out to about $0.30 per conversation if you use the full plan. The overage rate of $0.79 per conversation is the most you will pay for any single call, no matter how long it runs.
Article Sources
Cira uses primary sources — official data, filings, and standards bodies — to support the facts in our glossary.
- U.S. Bureau of Labor Statistics. “Occupational Outlook Handbook: Receptionists.” Accessed 2026-08-20.
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