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Advertising economics toolkit

Put the campaign
numbers to work.

Calculate the metrics that matter before you buy media: cost per click, cost per thousand impressions, break-even ROAS, allowable lead value and customer acquisition cost.

Open calculators → Understand costs first
Campaign economicsPlanning view
Spend$5,000monthly budget
Leads40example volume
CPL$125example only
Close rate25%business input
Planning ruleMedia cost only matters relative to unit economics.
The framework

Start with revenue.
Work backward.

A cheap click can still be expensive if it does not convert. A high CPL can still be profitable if customers are valuable. The useful calculation starts with margin, close rate and customer value.

01Customer valueWhat is a sale worth?
→
02Gross marginHow much gross profit remains?
→
03Close rateHow many leads become customers?
→
04Allowable CPLHow much can a lead cost?
→
05Media budgetWhat can you test responsibly?
Core calculators

Four numbers every
advertiser should know.

Use these calculators to understand a campaign. They do not predict performance; they help you compare actual results and set planning thresholds.

01 · TrafficCPC

Cost per click

How much did each click cost?

Enter spend and clicks.
Formula: spend ÷ clicks
02 · ReachCPM

Cost per 1,000 impressions

How much did it cost to deliver one thousand impressions?

Enter spend and impressions.
Formula: spend ÷ impressions × 1,000
03 · ProfitabilityROAS

Break-even ROAS

What return on ad spend is needed to cover gross margin?

A 40% gross margin implies roughly 2.5× break-even ROAS before overhead and other costs.
Enter gross margin.
Formula: 1 ÷ gross margin as a decimal
04 · LeadsCPL

Break-even lead value

Estimate how much a lead can be worth before overhead and other costs.

Enter revenue, margin and close rate.
Formula: revenue × gross margin × close rate
Advanced planning

Go beyond platform
metrics to business metrics.

Clicks and impressions are media metrics. Acquisition cost, gross profit and payback are business metrics. Good planning connects the two.

CAC

Customer acquisition cost

Measure total marketing and sales cost per new customer.

Enter spend and new customers.
CVR

Conversion rate

Measure what percentage of clicks or visits became leads or sales.

Enter conversions and clicks/visits.
R

Actual ROAS

Compare attributable campaign revenue with advertising spend.

Enter revenue and ad spend.
$

Lead-volume budget planner

Estimate a media budget from a target lead volume and target CPL.

Enter target leads and target CPL.
Read the result correctly

A metric is useful only
with the right context.

Avoid optimizing one number in isolation. Lower CPC is not necessarily better, lower CPM is not automatically more efficient, and high ROAS can still hide weak total profit if scale is tiny.

CPC

Cheap traffic can be poor traffic.

Judge CPC alongside conversion rate, lead quality and revenue.

CPM

Low-cost reach is not the same as attention.

Creative quality, placement and audience relevance matter.

CPL

Lead quality changes the economics.

A more expensive lead may be better if close rate or customer value is higher.

ROAS

Revenue is not profit.

Margin, fulfilment, overhead and repeat purchase economics still matter.

CAC

Include the real acquisition cost.

Media, creative, agency, sales and promotional costs can all affect CAC.

Planning example

From sale value to
allowable lead cost.

This example shows the logic, not a recommendation for any particular business.

Example inputs
$1,200revenue per customer
45%gross margin
20%lead close rate
Gross profit per customer $540 × 20% close rate
Approx. break-even lead value $108 before overhead, sales cost, refunds and other business costs
Use responsibly

Planning tools, not promises.

These calculators perform arithmetic from the numbers you enter. They do not estimate future ad performance, guarantee profitability or replace accounting advice. Use conservative inputs and compare the outputs with your actual business data.

Next step

Know the economics. Then compare the media.

Once you know your thresholds, compare channel buying models and request current provider pricing with much better questions.

Compare channels → Find providers