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Free planning tool

What is your ad spend actually returning?

Your return on ad spend comes down to four numbers you probably already know: what you spend each month, what a lead costs you, how many leads become customers, and what a customer is worth. Put your own numbers into the calculator below and it shows your leads, customers, revenue, and ROI multiple per month — then lets you model an improvement scenario that you define, not one we assert.

How do you calculate ROI on ad spend?

Ad spend ROI is the monthly revenue your advertising produces divided by what you spend to produce it — calculated as (spend ÷ cost per lead) × close rate × customer value, then divided by spend.

$5,000
$500 – $50,000 — your total monthly budget across paid channels.
$1,500
$50 – $25,000 — revenue from a typical new customer (use lifetime value if you know it).
25%
5% – 80% — of every 100 leads, how many become paying customers?
$60
$5 – $500 — ad spend divided by the leads it generates today.

Model an improvement scenario — you set the expectation

The defaults below are deliberately modest and purely illustrative. They are not a prediction, benchmark, or promise — drag them to whatever you consider realistic for your business.

20%
0% – 50% — illustrative, set your own expectation.
10%
0% – 30% relative improvement — illustrative, set your own expectation.

If cost per lead improved by 20% and close rate by 10% — illustrative, set your own expectation.

Today — your numbers as entered
Leads / month
New customers / month
Revenue / month
ROI multiple
Your scenario — same spend, your chosen improvements
Scenario cost per lead
Scenario close rate
Leads / month
New customers / month
Revenue / month
ROI multiple

How the math works: leads per month = ad spend ÷ cost per lead. Customers per month = leads × close rate. Revenue per month = customers × average customer value. ROI multiple = revenue ÷ ad spend. The scenario column applies only the two improvement sliders you set — to cost per lead and close rate — and changes nothing else (the scenario close rate is capped at 100%).

Estimates for planning only — adjust every number to your business. Not a quote or guarantee.

Where do improvements like these actually come from?

Cost per lead and close rate improve through specific, unglamorous work — accurate conversion tracking, cutting wasted spend, ranking for better queries, and following up with leads faster — not through a secret channel or hack.

Lever: measure first

Tracking before scaling

You cannot lower a cost per lead you are not measuring correctly. Before any budget increase, we make sure calls, forms, and bookings are tracked back to the campaign and keyword that produced them — usually as part of paid media management and the website itself.

Pay-Per-Click Advertising
Lever: cost per lead

Cutting wasted spend

In most inherited ad accounts, a slice of the budget goes to search terms, placements, and hours that never produce a lead. Trimming that waste lowers cost per lead without touching the parts that work — the least risky improvement on this page.

PPC Management
Lever: lead quality

Winning better queries

Leads from high-intent searches — and from AI assistants that recommend you by name — are further along in their decision when they reach you. SEO and AI Engine Optimization compound over time, feeding both sides of this calculator.

Search Engine Optimization
AI Engine Optimization
Lever: close rate

Faster follow-up

The fastest close-rate lever usually is not the ads at all — it is what happens in the minutes and days after a lead arrives. Dedicated appointment setting means every lead gets contacted, followed up, and booked instead of going cold in an inbox.

Appointment Setting

What can clients expect from working with Digi Mkt?

Working with us means a dedicated point of contact, plain-language reporting tied to revenue, and campaigns managed on evidence — paused when the data says pause, scaled when the data says scale.

  • A dedicated point of contact who knows your account — not a rotating queue.
  • Plain-language monthly reporting tied to revenue, not vanity metrics. You see spend, leads, customers, and the same ROI math this page uses.
  • Campaigns paused when the data says pause. We would rather stop a losing campaign than defend it in a report.
  • We aim to earn the renewal, not rely on the contract. Our philosophy is that the work each month should be the reason you stay.
  • Responsive by default — we aim to reply the same business day.
  • Your data stays yours. Ad accounts, tracking, and analytics are built so you keep access and history.

Has this approach worked for a real business?

Yes — in one engagement's published results, a dealership client turned $5,500 in monthly ad spend into $38.6K in attributed revenue by working exactly these levers.

$5.5K → $38.6K
Monthly ad spend to attributed revenue
1,128%
Return on ad spend
21%+
Conversion rate
$0.97
Cost per click

One engagement's published results — roughly a 12x return in that case. Every business, market, and budget is different; that is exactly why the calculator above uses your numbers, not theirs.

See the full success stories