Free CPI ToolSolve Cost, CPI or Impressions
Free CPI Calculator

Cost Per Impression Calculator

Solve for total cost, cost per impression, or impressions in one click. Instantly see the CPM equivalent, projected clicks, and your true effective CPC — no email required.

3-in-1 solverCPM equivalentEffective CPCNo email required

Campaign Inputs

Results update live as you type

$

Optional — project clicks

The formula: Cost Per Impression = Total Cost ÷ Impressions. CPM = CPI × 1,000. All figures are estimates for media-planning purposes.

Total Cost$4,000.00
Cost Per Impression$0.008
Impressions500,000

Derived Metrics

CPM Equivalent

$8.00

Est. Clicks

2,500

Effective CPC

$1.60

Based on a 0.50% click-through rate.

CPM equivalent simply multiplies your cost per impression by 1,000 — the standard quoting unit.

Real impression costs fluctuate by platform, audience, ad quality, and seasonality.

Effective CPC = Total Cost ÷ Clicks — useful for comparing impression buys against CPC campaigns.

Education

How Impression Pricing Works

Cost per impression is the foundation of awareness, video, and programmatic media buying. Here's what drives it.

01

CPI vs CPM

CPI is the cost of one impression; CPM is the cost of 1,000. CPM = CPI × 1,000. Media is quoted in CPM because per-impression prices are tiny fractions of a cent.

02

How Pricing Works

Ad inventory is sold per view through auctions and direct deals. You pay each time your ad renders, whether or not the viewer clicks or even notices it.

03

What Affects CPI

Audience targeting, ad placement, competition, format (video costs more than display), device, geography, and seasonality all move your cost per impression.

04

Impressions vs Reach

Impressions count every view including repeats to the same person. Reach counts unique people. Frequency = impressions ÷ reach — how often each person sees you.

05

CTR Turns Views Into Clicks

Click-through rate is the share of impressions that become clicks. A 0.5% CTR on 500,000 impressions yields 2,500 clicks — the bridge from awareness to traffic.

06

When to Use CPI Buys

Choose impression-based pricing for brand awareness, reach, video views, and retargeting where visibility and frequency matter more than immediate clicks.

Common Questions

Frequently Asked Questions

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