How many leads does an AI voice agency need per client?

It depends entirely on three rates multiplied together, and the product is smaller than most operators expect. A typical solo funnel books 18 percent of leads into a discovery call, holds 65 percent of those calls, and closes 25 percent of the ones held. Multiply those and you convert about 2.9 percent of leads end to end, which means roughly 34 leads per signed client and about 137 leads a month to sign four. Operators who quote a single conversion number are almost always quoting close rate on held calls, which is the last stage and the most flattering one. The number that governs your month is the full chain, and this calculator runs it in both directions so you get the leads required for a target rather than the clients produced by a guess.

How does this calculator work?

You enter six things: leads per month, the percentage that book a discovery call, the percentage of booked calls that get held, the percentage of held calls that close, your target new clients per month, and what a lead costs you. From those it computes calls booked, calls held, and clients won at your current volume, then reverses the funnel from your target to tell you the leads and calls required to hit it and the gap against what you run today. It also reports your end-to-end lead-to-client rate, cost per signed client at your current conversion, cost per client at target volume, and which of the three stages is weakest. A close-rate scenario table shows the same traffic at 10 through 50 percent. Nothing is stored or sent anywhere, and your inputs are encoded in the URL for sharing.

What is a good discovery call show rate?

Between 55 and 70 percent is normal for a solo operator booking cold or semi-cold leads, and above 80 percent usually means you are booking warm inbound rather than prospecting. Show rate is the stage most operators ignore because it feels administrative rather than strategic, yet it is pure waste: a no-show is a lead you already paid for, a slot you could not resell, and an hour you cannot recover. It is also the cheapest stage to fix. A confirmation immediately after booking, a reminder the day before, and a short call or text the morning of will typically move show rate ten to fifteen points with no change to your offer, your traffic, or your pitch. Run the calculator with your current show rate and then fifteen points higher and compare the leads required.

Should I add more leads or improve conversion first?

Improve conversion first, in nearly every case. More leads multiply whatever rate you already have, including a bad one, so buying volume on top of a broken funnel raises your cost per client rather than your client count. Conversion improvements compound in the opposite direction because they lower the leads required for every future month at no extra cost. There is one exception: if your volume is so low that you are drawing conclusions from six calls, you do not have a conversion problem, you have a sample size problem, and you need traffic before the rates mean anything. Past roughly thirty calls a month the rates are real and the weakest stage is where the return is. This calculator names that stage for you.

What close rate should an AI voice agency expect on discovery calls?

Twenty to thirty percent on held calls is a fair working range for a well-qualified pipeline, and it is worth being honest that the number says more about qualification than about selling. Agencies closing above forty percent are usually filtering hard before the call so only serious buyers reach the calendar, which is a better system than a high raw close rate on unqualified volume. Below fifteen percent, the problem is almost never the pitch. It is either that the wrong people are booking, or that the operator cannot answer the price question with confidence because their own delivery cost is opaque. Knowing exactly what a client costs you to serve is what turns a defensive price conversation into a straightforward one, and it moves close rate more than any script change.

How does the platform behind the agent change these numbers?

In two places on the discovery call. The first is proof: showing a working agent answering a real call converts far better than describing what you would build, and the gap between those two calls is usually the difference between a close and a follow-up that never happens. The second is price confidence, because you cannot defend a number you have not costed. Most agencies run five to seven tools per client, so their real delivery cost is spread across invoices they have never added up. Hermes replaces that stack with one white-label platform, first agent live in 72 hours, from $149 per month with 300 included minutes, $399 for 1,000 minutes, $699 for 2,000 minutes, and a published $0.24 per minute overage. Your clients never see the word Hermes.

free tool

Lead to client calculator.

How many leads and discovery calls it actually takes to sign your next voice client, which stage of the funnel is costing you the most, and what one client really costs.

your funnel

Leads per monthEverything that enters the funnel: cold replies, inbound forms, referrals, DMs.Discovery call book rate (%)Show rate (%)Booked calls that actually happen. Most solo operators sit between 55 and 70 percent.Close rate on held calls (%)Target new clients per monthCost per leadCash plus your own hours valued at what you would otherwise bill. Enter 0 to skip.

leads required

137

Leads a month to sign 4 new clients at your current book, show and close rates.

You run 120 today, so the gap is 17 more.

where you land today

3.5 clients

22 calls booked, 14 held, at a 2.9% lead-to-client rate end to end.

0.5 clients short of target.

cost per client

$41,026

What one signed client costs you at $1,200 per lead and your current conversion.

At the volume needed to hit target it is $41,026 a client.

Weakest stage: Book rate

Fewer than one in five leads is turning into a booked call, so most of your pipeline never reaches a conversation. Speed to first contact and a shorter booking path move this faster than more leads will.

Stage	Today	Needed	What it means
Leads	120	137	Everything that enters the funnel in a month.
Calls booked	22	25	18.0% of leads book a discovery call.
Calls held	14	16	65.0% of booked calls actually happen.
Clients won	4	4	25.0% of held calls become clients.

Read it bottom up. The target sets the number of held calls, held calls set booked calls, booked calls set leads.

Close rate	Clients on current leads	Leads needed for target	Cost per client
10%	1.4	342	$102,564
20%	2.8	171	$51,282
30%	4.2	114	$34,188
40%	5.6	85	$25,641
50%	7.0	68	$20,513

Same traffic, same book and show rate. Only the close rate moves.

the shortcut

Lift your close rate by a quarter and the same 4 clients need 109 leads instead of 137. The two things that move close rate fastest on a discovery call are showing a working agent instead of describing one, and quoting a price you can defend because you know your own cost. Hermes gives you both: agents live in 72 hours under your own brand, from $149 per month with 300 included minutes, $399 for 1,000, $699 for 2,000, and a published $0.24 per minute overage so your margin is never a guess on the call.

Book a 20-min walkthrough to cut this number

Want the full breakdown for your agency? Book 20 minutes and we will run your real funnel stage by stage.

Your inputs are encoded in the URL. Send it to a partner and they see the same numbers.

how it works

Your client target is a multiplication problem, not a hustle problem.

A pipeline is three rates multiplied together. Some share of your leads book a discovery call, some share of those calls get held, and some share of the held calls become clients. Multiply the three and you have the only conversion number that governs your month. A funnel that books 18 percent, holds 65 percent and closes 25 percent converts 2.9 percent of leads end to end, which means about 34 leads for every signed client. That is a very different picture from the 25 percent close rate the same operator would quote if asked how well they sell.

Running the math forward tells you what your current volume produces. Running it backward is the part that changes decisions. Start from the clients you want, divide by the close rate to get the calls you must hold, divide by the show rate to get the calls you must book, and divide by the book rate to get the leads you must generate. Four clients a month on the rates above needs roughly 137 leads and 25 booked calls. If you are generating 60 leads, no amount of effort inside the existing funnel closes that gap, and knowing the number is what stops you from blaming the pitch.

The weakest stage is where the return is, and it is rarely the one operators focus on. Show rate gets ignored because it feels like admin, yet every no-show is a lead you already paid for and an hour you cannot resell, and confirmation sequences reliably move it ten to fifteen points without touching your offer. Close rate problems are usually qualification problems: the wrong people are reaching your calendar, so adding leads on top makes cost per client worse rather than better. Only once the rates are healthy does buying more volume do what you want it to do.

Two things move close rate more than any script. The first is showing a working agent on the call rather than describing one you would build later. The second is quoting a price you can defend, which requires knowing your own delivery cost, and most agencies cannot state theirs because it is spread across five to seven invoices. Hermes replaces that stack with one white-label platform, first agent live in 72 hours, from $149 per month with 300 included minutes, $399 for 1,000 minutes, $699 for 2,000 minutes, and a published $0.24 per minute overage. Run the calculator at your current close rate, then a quarter higher, and compare the leads required.

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Lead to client calculator.

Your client target is a multiplication problem, not a hustle problem.

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