Ad Spend Calculator

Work out the spend needed to deliver a target number of impressions at a given CPM.

About Ad Spend Calculator

CPM prices inventory per thousand impressions, so spend is impressions divided by a thousand times the rate. Agency and platform fees sit on top, which is why working media is always less than the budget approved. Comparing channels on CPM alone ignores fee load and click-through; the effective cost per click is what makes them genuinely comparable.

Formula

Ad Spend

Media spend = impressions ÷ 1,000 × CPM; total = media spend × (1 + fee)

CPM: Cost per thousand impressions
working media: The portion of budget that actually buys inventory

Worked example

With the default values below, Ad Spend Calculator returns Total Ad Spend Required of $8,960.00. Change any input above and every figure here is recalculated in your browser.

Inputs used

Target impressionsminimum 0: 1,000,000
Cost per thousand impressionsminimum 0: 8
Agency or platform feeaccepts 0–100 %: 12 %
Expected click-through rateaccepts 0–100 %: 0.9 %

Results

Total Ad Spend Required: $8,960.00
Working Media Spend: $8,000.00
Agency or Platform Fee: $960.00
Expected Clicks: 9,000
Effective Cost Per Click: $0.9956

Step by step

1Values used
2Ad Spend
3Total Ad Spend Required= 8,960.00
4Working Media Spend= 8,000.00
5Agency or Platform Fee= 960.00
6Expected Clicks= 9,000
7Effective Cost Per Click= 0.9956

Assumptions and limits

The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax or compounding frequency into account.
Figures are rounded for display to 4 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
This is an estimate for general information and not professional financial, tax or legal advice. See the full disclaimer for the limits that apply to this kind of calculator.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

How is Ad Spend calculated?

Media spend = impressions ÷ 1,000 × CPM; total = media spend × (1 + fee) CPM prices inventory per thousand impressions, so spend is impressions divided by a thousand times the rate. Agency and platform fees sit on top, which is why working media is always less than the budget approved.

Why does Ad Spend matter?

Comparing channels on CPM alone ignores fee load and click-through; the effective cost per click is what makes them genuinely comparable.

What values do I need to enter?

This calculator takes 4 inputs: Target impressions, Cost per thousand impressions, Agency or platform fee, Expected click-through rate. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.