eCPM Calculator

Free eCPM calculator: effective CPM from earnings and ad impressions, optional RPM from page views, impression and revenue bar charts, scenario table—align with AdSense, Prebid, and ad-server exports.

eCPM Calculator | Effective CPM, RPM & Publisher Charts

Summary: eCPM (effective cost per mille) on the publisher side is (earnings ÷ ad impressions) × 1,000—how much you earned per thousand impressions after everything nets out. Charts show how eCPM moves when impressions or revenue shifts; optional page views unlock RPM (revenue per thousand page views) for the same period.

eCPM calculator (effective CPM from revenue)

Paste totals from AdSense, Prebid, an ad server export, or a sponsor invoice—then align the impression count to the same line item. If your dashboard already shows eCPM, this tool is a quick sanity check and a way to model “what if inventory or rates wobble?”

Publisher inputs

Leave 0 to hide RPM. Use the same date range as earnings and impressions.

eCPM, per-impression yield, and charts will appear here.

For RPM vs eCPM, fill rate, and why your dashboard eCPM wiggles when CPM did not, read Effective CPM without the dashboard fog below.