Cost per call calculator
Work out what each handled call costs your call center. Include the costs that matter, compare call volumes and see exactly how the result is calculated.
For operations and finance teams. No sign-up required. Enter your own figures to calculate a cost that reflects your operation.
Calculate your cost per call
Enter the full cost of inbound phone support and the number of calls answered during the same period. Your results update as you type.
Your average cost is $7.00 per handled call. Compare it with total spend and resolution quality before treating it as a performance target.
How to calculate cost per call
Divide all costs associated with handling inbound phone calls by the number of calls answered in the same period. That gives you the average cost of one handled call.
This is a unit-cost measure, not a measure of resolution. A lower figure can reflect more calls, including unnecessary repeat contacts, rather than better service.
The formula
Cost per call = (staff costs + other phone-support costs) ÷ handled inbound calls
A fully loaded calculation includes staff, software, telephony, office space, utilities and the relevant overheads. If teams also handle chat or email, include only the share of costs associated with phone support.
| Input | Value |
|---|---|
| Staff and employment costs | $100,000 |
| Technology, facilities and other costs | $40,000 |
| Total operating costs | $140,000 |
| Handled calls | 20,000 |
| Cost per call | $7.00 |
Calculation: ($100,000 + $40,000) ÷ 20,000 = $7.00. These figures are illustrative, not an industry benchmark.
Published cost-per-call benchmarks
These averages are research reference points, not targets. The US and UK studies used different samples and currencies, so they are not a like-for-like comparison.
What changes your cost per call?
Use the scenarios to separate workload, spending and unit cost. Fewer calls may reflect better resolution or weaker demand. The useful question is what happened to customer outcomes and which costs your operation can actually avoid.
Compare workload and spend
These scenarios start with $140,000 in operating costs and 20,000 handled calls per month.
| Scenario | Calls handled | Total spend | Cost per call | Decision point |
|---|---|---|---|---|
| Current position | 20,000 | $140,000 | $7.00 | Your starting point |
| 10% fewer calls | 18,000 | $140,000 | $7.78 | Less work, but no cost removed |
| 10% fewer calls, 5% lower spend | 18,000 | $133,000 | $7.39 | Less work and a real spending reduction |
| 10% more calls | 22,000 | $140,000 | $6.36 | Lower unit cost, but more work to handle |
Fewer calls do not automatically save money. At 18,000 handled calls and unchanged spending, cost per call becomes $7.78. That is 2,000 fewer calls to handle, but still $140,000 in operating costs.
What would keep unit cost at $7.00? With 18,000 calls, operating spend would need to be $126,000 or less, a $14,000 reduction. This is a mathematical threshold, not a recommended cut.
Use the table to ask three questions: Did calls fall because more problems were resolved first time? Has any actual spending fallen, or is capacity simply available for other work? Are customer outcomes and service levels improving? These are illustrative scenarios. Changes in call volume alone do not establish FCR improvements or cash savings, and a 10% volume increase may not be achievable without extra resources. Scenario call volumes are rounded to whole calls.
What counts towards your costs?
Use your phone-system report for handled inbound calls, then use payroll, finance and software bills to build the matching cost total. If people or systems also support email and chat, include only the share used for phone calls.
People costs
Include agents, supervisors, workforce planning, QA, recruitment, training, benefits and employer taxes. For colleagues who work across channels, include the share of their costs attributable to phone calls.
Technology, rent and overheads
Include telephony and CCaaS licences, CRM and other software, headsets, IT, rent, electricity, internet, office services and relevant management overheads. Divide shared costs between the channels that use them rather than counting the full bill twice.
Which calls should you count?
Use inbound calls actually answered by an agent, not all calls offered to the queue. Exclude abandoned calls. Check how your phone system records transfers so one customer call is not counted twice.
Cost per call is not cost per resolution
Removing avoidable repeat calls can reduce workload and improve customer experience. If fixed costs remain unchanged, the cost of each remaining call can initially rise. Read this number alongside first contact resolution, repeat contacts and total spending.
How to reduce your cost per call
Start with the work behind the cost. Reducing unnecessary calls, improving handling efficiency and removing actual expenditure can all help, but they affect cost per call and total spending differently.
Reduce average handle time
Investigate long diagnosis steps, unnecessary hold time and avoidable after-call work. Faster handling can release capacity, but only saves cash if it changes overtime, hiring or other actual expenditure.
Improve first contact resolution
Look at why customers have to contact you again. Getting the issue resolved can lower repeat workload even when cost per call rises because the volume falls.
Remove avoidable operating expenditure
Review overlapping licences, overtime, telephony charges and overhead allocations. Distinguish genuine savings from costs that merely move between teams or channels.
Align staffing with demand
Compare interval call volumes, AHT, shrinkage and service targets. Better scheduling can reduce unnecessary overtime without creating a new queue problem.
Related tools
Find the delays that increase handling effort.
Understand why customers need to call again.
Explore approaches to supporting agents and resolving customer issues.
Methodology and sources
Formula: (staff and employment costs + other phone-support costs) ÷ inbound calls handled during the same period. Include agent pay, management, technology, rent, utilities and relevant overheads. If staff or software serve multiple channels, include only the portion used for calls and do not count the same expense twice. The optional scenarios model changes in call volume and spending separately. Changing the currency symbol does not convert exchange rates.
Published benchmarks: ContactBabel’s US contact centre research and the published summary of ContactBabel’s 2025 UK guide. Figures reflect different samples and cost-accounting methods and should not be treated as universal targets.