AI Receptionist Cost Calculator

What this tool does

The calculator builds two monthly figures from your own numbers. The human column takes the hourly wage you enter, the hours covered, and the employer costs on top — national insurance or payroll tax, pension, holiday cover, training and the desk itself. The AI column takes your call volume and average call length and prices it per minute across the telephony and agent layers.

It then adds the line that usually decides it: the calls neither option answers. A person on a call cannot take the next one; an agent can take fifty. If you know roughly what a booked enquiry is worth, the calculator shows the revenue attached to the calls a single-line human setup drops.

A worked example

A clinic takes about 40 calls on a working day, opens 45 hours a week, and books an average of one appointment for every four calls answered.

The human column is a wage plus employer costs plus holiday cover, and it stops at closing time. The AI column is a per-minute figure across roughly 40 calls of three minutes each, and it does not stop at all.

The interesting number is neither of those. It is the calls arriving between 6pm and 9am, and the calls arriving while the receptionist is already on the phone. At four calls to a booking, a handful of missed calls a day is a material monthly figure — and it is the same figure whether or not you replace anybody, which is why most clinics end up running both.

What goes into each column

For a defensible wage figure rather than a guess, the US Bureau of Labor Statistics publishes current median pay for receptionists in its Occupational Outlook Handbook. Use your own local equivalent where you are.

Where people go wrong

Comparing salary against subscription. The salary is not the cost of employment, and the subscription is not the cost of the agent. Employer costs add materially to one; telephony and model usage add to the other. Get both fully loaded or the comparison is theatre.

Assuming AI replaces the role. In practice it takes the overflow, the out-of-hours calls and the repetitive enquiries, and the person keeps the work that needs judgement. The honest framing is capacity, not redundancy.

Ignoring the escalation path. Some calls must reach a human. Budget for a warm transfer and for the person who receives it.

Underestimating call length. Agents are billed per minute across several layers. Break the per-minute figure down properly with the voice AI cost per minute calculator before entering it here.

Guessing the value of a booking. If you do not know it, the missed-call figure is decoration. Pull it from your own average order value before relying on the output.

FAQ

Which per-minute rate should I enter?

Your own. Platform rates differ — Retell AI and Vapi publish theirs — and the carrier leg is separate again, priced on pages such as Twilio's voice pricing.

Does an AI agent really handle concurrent calls?

Yes. Concurrency is a platform limit rather than a physical one, and it is the single biggest operational difference from a human line.

What about callers who refuse to speak to a machine?

Some will. Build an immediate route to a human and measure how often it is used — in most deployments it is a minority, and knowing the real figure beats arguing about the hypothetical one.

Is the setup cost included?

Enter it as a one-off and the calculator amortises it across the months you specify, which is the fair way to compare against a recurring wage.

Does this work outside the US?

Yes. Every rate is an input, so use your local wage and your local telephony rates.

Next steps

How to Build an AI Receptionist covers the actual build, and AI Voice Agent for Small Business covers where it fits operationally. To put a figure on the calls you are dropping today, use the missed call revenue calculator.

Want the numbers run against your own call logs? Book a discovery call.