How long should a newsletter be? The length data

How long should a newsletter be? For most promotional and curation sends, the band that earns the most clicks in our data is 100 to 249 words. That is the short version, and if you only take one line from this page, take that one. The honest answer has a second half the listicles leave out, though, and the second half is where most people go wrong.

We analyze newsletters for a living. Every week we run other people's sends through Newsletrix and watch which ones get opened, read, and clicked. The thing that keeps showing up is not "shorter always wins". It is that the right length depends on what the newsletter is for, and that cutting words is the wrong fix more often than people expect. So this is not another post telling you to stay under 200 words and move on.

The short answer, with the number

Across the newsletters in our corpus, the 100 to 249 word band shows the highest click-to-open rate for promotional emails and curated link roundups. Click-to-open rate is the share of people who opened and then clicked something, so it isolates what the body did once the subject line had done its job. That band is long enough to set up a click and short enough that the call to action arrives before attention drains.

Now the caveat, because one number cannot cover every newsletter. A daily curated digest and a deep industry briefing are different products that happen to share an inbox. The 100 to 249 figure is the answer for the first kind. For the second, following it would gut the thing subscribers signed up for. Hold onto the number, but read the next four sections before you apply it to your own send.

Why everyone repeats the "under 200 words" rule

The "keep it under 200 words" advice did not come from nowhere. Most people read email on a phone, in a gap between other things, with a thumb already hovering over archive. For a promo whose entire purpose is one tap, brevity genuinely helps. The rule is a fair summary of what works for the median marketing email, and the median marketing email is what most benchmark posts are built on.

The problem is that the rule gets repeated as if it were universal, and it is not. The recycled "about 200 words" line traces back to a handful of old vendor posts citing each other, and it has hardened into received wisdom. People writing a weekly B2B analysis read that line, feel guilty about their 800-word draft, and cut it to 250. Then their click rate drops and they cannot work out why. The advice was never written for them. It was written for a coupon email and quietly applied to everything.

What our corpus shows: word count vs click rate

Plot click-to-open rate against word count for promotional sends and the shape is a hump, not a slope. Under roughly 80 words, click rate is weak, because there is not enough context to make anyone want to click; a bare link with two lines of setup reads as thin. Climb into the 100 to 249 band and click rate peaks. The email has room to give a reason and still get to the point fast.

Past about 300 words on a promo send, the line bends back down. The extra words do not add clicks, they add scroll, and the call to action sinks below the fold where fewer people reach it. This is the drop-off point most senders miss, because they judge a draft by whether it reads well, not by where the click lives on the screen. A promo that reads beautifully at 450 words can underperform a blunt one at 180 simply because the button moved south. These are observations from the newsletters we have analyzed, not a controlled study, so treat them as a strong prior rather than a law.

The B2B and analysis exception

Here is where the universal rule breaks. B2B newsletters and analysis-led sends in the 600 to 900 word range hold their click depth and reading time in our data, and some climb with length rather than fall. The reason is simple once you say it out loud: for these, the reading is the value. Nobody subscribes to a sharp industry breakdown hoping it will be 150 words. They subscribe because someone does the thinking they do not have time for, and thinking takes space.

This is the niche the "shorter is better" crowd quietly harms. A Substack essay, a beehiiv deep dive, a Tuesday-morning strategy memo: trim any of these to fit a promo-length target and you have not tightened it, you have removed the product. At 240 words per minute, a 900-word piece is a four-minute read, which is a coffee, not a commitment. The question for this kind of newsletter is never "is it too long", it is "is every paragraph earning its place". Those are different edits.

Length is a symptom, not the disease

The most useful thing we can tell you about length is that it is usually the wrong thing to fix. When a newsletter has a low click rate, the cause is a weak opening or a buried call to action far more often than too many words. Cutting from 400 to 250 feels productive because it is measurable, but if the first sentence does not earn the next one, you have just made a boring email shorter. The work is in the first 100 words, where the reader decides whether to keep going, and in the friction around the click itself.

So before you reach for word count, judge two things. Does the opening give a reason to read past line one, and is the action you want obvious and easy the moment someone wants to take it? Reading time is the real budget here, not the raw count. At 240 words per minute you can hand readers the number that matters to them, and keeping the Flesch reading ease around 60 to 70 means those minutes feel light. A dense 200-word block can take longer to get through than a breezy 400-word one. Count the time, not the tokens.

How to find your own right length

Stop guessing and let your own sends tell you. The diagnostic we use is words per click: take a campaign's body word count and divide by its click-to-open rate, then compare that ratio across your recent sends. When a longer email returns a worse ratio than a shorter one of the same type, length is costing you. When the ratio holds or improves with length, your audience wants the depth and you should give it to them. Pair that with a rough scroll-depth read from your click data: if most clicks land on links near the top and the bottom third goes untouched, your email is longer than your readers are.

One more test before you cut a word. If your newsletter is a digest of several items and engagement is soft, the fix is often format, not length. Try a single-topic send against your usual roundup and watch the click rate. We have seen a focused 250-word single-topic email beat a 700-word digest from the same list, not because shorter won, but because one clear ask beat five competing ones. If you want to see how other operators in your space structure their sends before you test, our breakdown of beehiiv analytics and the alternatives we compare is a useful place to start. Decide what the email is for, write to the point where that job is done, then stop. That is the only length rule worth keeping.

Frequently asked questions

How many words should a newsletter be?

For most promotional and curation newsletters, 100 to 249 words is the band that earns the highest click-to-open rate in our data. Go much below 80 words and there is rarely enough to act on; push past about 300 for a promo send and the extra words stop earning clicks. B2B and analysis newsletters are the exception and run far longer on purpose.

Is a shorter newsletter better?

Not by default. Shorter is better when your newsletter exists to drive one click, like a promo or a curated link roundup. It is worse when the reading itself is the product, as with a B2B briefing or a paid analysis piece, where cutting words removes the value people subscribed for. Length should follow the job the email does, not a universal rule.

How long should a B2B newsletter be?

B2B and analysis-led newsletters routinely run 600 to 900 words and hold their reading time and click depth at that length in our data. Subscribers opt into these for the thinking, so trimming to hit a 200-word target tends to lower engagement rather than raise it. Write to the point where the argument is complete, then stop.

What is the ideal newsletter reading time?

At an average adult reading speed of about 240 words per minute, a 200-word promo lands near 50 seconds and a 900-word B2B piece runs close to four minutes. Reading time, not raw word count, is the budget that matters. Aim for a time your audience will really spend, then keep the Flesch reading ease around 60 to 70 so those minutes are easy ones.

Does newsletter length affect open rate or click rate?

Length does not affect open rate, because the open happens before anyone sees the body; that is a subject line and sender job. Length affects click rate, and only up to a point. Past the band that fits your newsletter type, more words lower the click rate by burying the call to action under scroll, not by adding value.

Related reading