Cost Per Signed Job Calculator

By Luis Johnson, founder of Lunere Digital. Published October 29, 2026

Cost per lead is the number every vendor quotes and the number that decides nothing. A $40 lead that signs one job in forty costs you $1,600 a job. A $300 appointment that signs one in four costs you $1,200. The cheaper lead is the more expensive source.

Put one month of one source into this and you get the only figure worth comparing: what it costs you to sign one job.

Your numbers, example inputs

Cost per signed job, from one month of one lead source

Every value below is an example input. Nothing is sent anywhere, and nothing is saved.

What you paid that source last month

Leads it gave you

Of those, booked an appointment

Of those bookings, actually happened

Of those, you signed

Your average signed job

Cost per lead: $75
Appointments booked: 20.0
Inspections that happened: 14.0
Jobs signed: 4.2
Revenue from that spend: $63,000
Cost per signed job: $714

How to fill it in without fooling yourself

Pull these five numbers before you start

What you actually paid that source last month, including any monthly fee, not just the per-lead charges.
How many leads it gave you. Count the junk ones, because you paid for those too.
How many turned into a booked appointment on somebody's calendar.
How many of those appointments actually happened.
How many of those you signed. Use last month, not your best month.

The one people get wrong is the show rate. Shops tend to quote the booking number and forget the ones where nobody answered the door, which makes a source look better than it's by exactly the share of drives your estimator wasted.

What to do with the answer

Read it against your gross profit per job

Cost per signed job is under a third of your gross profit: The source is working. The question is whether you can buy more of it without the cost rising.
It's between a third and all of your gross profit: You're busy and barely paid for it. Fix the show rate or the close rate before you spend more.
It's more than your gross profit: You're paying to work. Stop buying from that source this month, not next quarter.

Should I include my own time in the cost?

If you or your estimator spend real hours chasing those leads, yes, at whatever an hour of that person is worth to you. It usually moves the answer more than people expect.

One month is a small sample. Is this reliable?

It's directional, not precise. Run it for three months separately and look at the spread rather than the average, because one freak month hides more than it shows.

Is anything I type here sent to you?

No. It runs in your browser, nothing is stored and nothing leaves the page. Close the tab and it's gone.

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