Is reading on a screen slower than reading on paper?
6 min read
For most of the research record, the answer is yes: people read from screens roughly 20–30% slower than from paper, and with a small comprehension cost on demanding material. The text is identical — what changes is the medium, and the medium changes how you read.
This is why our words-per-minute test notes that your on-screen result will likely run a little below your book-reading speed. Here's what the evidence actually says, and why the gap exists.
What the studies found
The classic comparisons go back decades. Reviews of computer-based versus paper-based reading — including the much-cited survey by Noyes and Garland (2008) — repeatedly found reading from screens slower and more effortful than from paper, with measurable differences in speed and sometimes comprehension. Later controlled work by Mangen and colleagues (2013) found readers of a longer text on screen comprehended slightly less than those reading the same text in print, particularly when reconstructing the order of events.
The consistent shape of the finding: a real but moderate penalty for screens, largest on long, linear, demanding texts, and smallest (often negligible) on short, simple ones. Full citations are on our sources & methodology page.
Why the gap exists
It isn't one cause but a stack of them:
- Display quality (historically). Older, lower-resolution screens caused more visual fatigue. This is the factor that has improved most — modern high-resolution displays have shrunk this part of the gap considerably.
- Scrolling vs pages. A printed page gives a stable spatial map — you remember roughly where on the page something was. Endless scrolling erodes that map, making it harder to track your place and build a mental model of the text's structure.
- A shallower reading mindset. People tend to approach screens in a scanning, skimming mode (the “screen inferiority” effect), bringing habits formed by feeds and search rather than deep linear reading.
- Distraction. A screen is one tab away from email, messages, and everything else. Fragmented attention slows effective reading even when raw decoding speed is unchanged.
Is the gap closing?
Partly. The hardware-driven part — eye strain from poor displays — has largely closed with high-resolution screens and e-ink readers, whose matte, paper-like displays narrow the difference further. What hasn't fully closed is the behavioural part: the tendency to read shallowly on screens and the disruption of scrolling. Those are habits and interface choices, not fixed limits, which is good news — they're things you can change.
How to read better on a screen
If you do most of your reading on a screen (most of us do), a few changes recover much of the lost ground:
- Prefer pages to infinite scroll. Paginated readers and e-readers restore some of the spatial map that scrolling destroys.
- Turn up size and spacing. Comfortable font size and generous line spacing reduce strain and re-reading.
- Remove the exits. Full-screen or reader mode, with notifications off, protects attention more than any reading “technique.”
- Match medium to stakes. For skimming and short pieces, screens are fine. For deep study of a long or difficult text, paper (or e-ink) is still a sensible default.
The practical upshot
When you're estimating how long something will take to read, remember the figure depends on the medium as well as the reader. The 238 WPM adult average behind our reading time calculator is a sensible default, but if you're reading a long, demanding piece on a phone between notifications, plan for a bit longer — and don't mistake the medium's drag for a limit of your own.
Frequently asked questions
Is reading on a screen slower than on paper?
For a long time, yes — studies consistently found screen reading roughly 20–30% slower than print, with a modest comprehension cost, especially for longer or more demanding texts. The gap has narrowed as displays improved, but paper still tends to hold a small edge for deep, linear reading.
Why is reading on screens slower?
Several factors stack up: earlier low-resolution screens caused more eye strain; scrolling disrupts the stable spatial map that helps you track your place; on-screen reading invites shallower, more skimming behaviour; and the temptation to switch tabs fragments attention. The text is the same — the medium changes how you engage with it.
Does screen reading hurt comprehension?
Modestly, and mostly for demanding material. Reviews comparing paper and screen reading find a small comprehension advantage for paper, more pronounced on longer texts and under time pressure. For short, simple reading the difference is often negligible.
How can I read better on a screen?
Use a paginated view instead of endless scroll where possible, increase font size and line spacing, reduce on-screen distractions, and slow down deliberately on material you need to truly absorb. For deep study of long or hard texts, paper is still a reasonable default.
Sources
Drawn from Mangen, A., Walgermo, B. R., & Brønnick, K. (2013) and Noyes, J. M., & Garland, K. J. (2008), with the broader screen-vs-print literature they sit within. Full citations on the sources & methodology page.
Keep reading: Why is reading aloud slower than reading silently?