Session ROI Calculator

Free tool

What is session depth worth on your inventory?

Your site today — without the AI

Monthly pageviews

Monthly sessions

Pages per session

Avg. session duration

Blended RPM

We run ad refresh

Session depth+5%

Pageviews per reader+30%

Reading per served article30s

Added ad revenue$108,000/year$9,000 a month, on your own RPM.

Depth alone does not explain these pageviews — the pair implies +23.8% sessions from readers coming back. Two separate studies multiplied: defensible, but further from measurement than depth alone.

Pages per session1.25 → 1.31

Multi-page share (estimated)14.7% → 18.4%

Today that puts you in the healthy band. Your depth is at the top of the measured panel.

The studies behind the levers

Horse & Rider Grew Pages Per Session 19% Without Growing Traffic

In the first quarter after enabling the Artificial Poets Platform, one in six Horse & Rider readers went past...

How Equine Network Grew Multi-Page Sessions 46%

Equine Network enabled the Artificial Poets Platform on two titles and left the rest unchanged. Over nine...

Equus Magazine Tripled the Sessions That Reach Five Articles

Most publishers measure whether a reader gets to a second article. This is what happens after that: sessions...

Mobile Multi-Page Sessions Rose 48%. The Comparison Titles Fell 23%.

Mobile readers are the hardest to keep. Six of seven segments improved. The one that didn't is printed.

How this is calculated

The symbols: PV pageviews, S sessions, p pages per session, d the depth lever, r the reach lever, and t the seconds each served article holds a reader.

Where you are

p = \frac{PV}{S}

Pages per session is pageviews over sessions. Multi-page share is then estimated with the panel’s own divisor of 1.7, because multi-page sessions average about 2.7 pageviews.

The depth lever

p' = p \times (1 + d)

The pages-per-session lift you chose, applied to your own depth.

The reach lever

PV' = PV \times (1 + r)

The pageviews-per-reader lift, applied to your own volume. It counts readers coming back as well as reading deeper, which is why it is the larger number.

The check

S' = \frac{PV'}{p'}

Fixing the two levers fixes sessions. The tool prints the session lift they imply, so you can see whether the pair is something we measured or two studies multiplied.

The money

\Delta R = \frac{PV' - PV}{1000} \times \mathrm{RPM}

Your RPM on the added pageviews. With ad refresh on, refresh impressions are added at your refresh RPM: each pageview earns min(cap, dwell ÷ interval) extra cycles.

The reading time

\Delta t = (p' - p) \times t_{\mathrm{article}}

Added seconds per session is added pages times the attention lever — never a percentage of your duration metric, which undercounts hardest exactly where depth rises.

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