Dwell Time: The Media Planning Metric Nobody Buys On (But Should)
Reach and frequency ignore how long an audience is actually present. Dwell time changes the maths.
Measurement · 2026-04-14 · 6 min read
In short
Dwell time is the duration an audience remains within view of a media placement. It determines how many exposures a single visit can generate and how much of a message can be absorbed. In healthcare waiting rooms dwell averages 10 to 45 minutes, versus roughly two seconds for a scrolled social impression.
- Long dwell converts one visit into multiple exposures without additional media cost.
- High-dwell environments tolerate more complex messages than transit or roadside media.
- Effective attention, not impressions, is the correct comparison across channels.
- Dwell varies materially by practice category and should shape category selection.
The exposure multiplier
With a ten-minute loop and a twenty-five minute wait, a single advert slot is seen two to three times by the same person. Planners who count that visit as one impression systematically undervalue the placement.
Message complexity scales with dwell
A roadside billboard supports six words. A waiting room screen supports a headline, a supporting claim and a QR code, because the viewer has time to return to it. This is why healthcare information, which is rarely simple, performs unusually well in this environment.
Frequently asked questions
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