With the communication revolution, emails have become a ubiquitous method of communication across various industries. For some, composing an email can be an art form. How long should an email be? There is no set answer to this question, but it’s important to consider the implications of email length on readership and open rates. In this article, we examine the data to better understand the impact of email length on open rates and present some tips to help you write more effective emails.

The prevalence of folk wisdom surrounding email length

There are countless examples of advice on the ideal length of an email. A quick online search yields numerous articles on the subject, often offering a prescribed number of words that an email should have. However, much of this advice is subjective, without any real data behind it. We need to look at data to get a clear and precise idea of how long an email should be.

There is no straightforward answer to the question of how long an email should be. It depends on the message being conveyed, the audience, and the context. Moreover, there are always trade-offs. Longer emails can provide more context and information, but they can also be overwhelming for the reader. On the other hand, shorter emails may not provide enough information or context.

Data collection

To better understand the impact of email length on open rates, we collected data on one hundred thousand bulk emails sent from Buttondown over the last twelve months. We calculated the word count of each email and rounded it to the nearest hundred to create our dataset.

Data analysis

Our data showed that there was no clear correlation between the word count of an email and its open rates. Emails that ranged from 50 to 2500 words had roughly similar open rates of around 30%. However, there was a slight dip in the open rate for emails exceeding 2500 words. This finding is not surprising since longer emails can be intimidating and time-consuming for the reader.

Caveats to consider in interpreting the data

It’s important to keep in mind that our dataset only includes bulk emails. Personal emails may have a different response rate. Moreover, the audience and context of the email are also essential factors to consider when evaluating the ideal email length. Therefore, these findings are not a one-size-fits-all solution, but they can be useful as a starting point.

The interesting findings

Our data revealed that there is no linear relationship between email length and open rates. The most effective emails tend to be of the appropriate length for their content and audience. Therefore, the goal is to write the correct number of words for your email. This finding supports the idea that shorter isn’t always better, and longer is not necessarily worse, but relevance and clarity are crucial.

The Importance of Writing the Correct Number of Words in Your Email

It’s important to tailor the length of your email to the content and audience. Including irrelevant information can lead to a lack of focus, and readers can quickly lose interest in the email. Conversely, if you don’t provide enough information, your email may not fulfill its intended purpose. Therefore, the aim should be to create an email that is neither too long nor too short but is of the correct length to convey the intended message effectively.

In conclusion, the optimal length of an email does not depend on a set number of words or complex algorithms. Instead, it comes down to the context and the resulting relevance of the email. The goal is to keep your email concise, clear, and on-point, while providing enough context and information. Our findings have important implications for both professional and personal email usage, and encourage further exploration into this essential area of communication.

Explore more

Why Are Europeans Protesting Against Data Center Growth?

Across the rolling landscapes of fifteen European nations, the hum of digital progress has been met with a resounding chorus of public dissent that challenges the very foundation of the cloud. The coordinated uprising seen in November 2026 represents a seismic shift in how citizens view the massive infrastructure supporting their digital lives. While the demand for high-speed connectivity remains

AMD Mext Uses AI to Cut Server Memory Costs with SSD Storage

Modern enterprise server rooms frequently face a silent financial crisis where high-performance memory modules consume nearly ninety percent of total hardware procurement budgets. This disproportionate expenditure stems from the rigid physical limitations of traditional Dynamic Random Access Memory, which has long served as a strict gatekeeper for system performance. While storage capacities for solid-state drives have surged, the price per

How is Generative AI Reshaping the Global Shopping Journey?

Instead of clicking through pages of search results, millions of consumers are now delegating their entire product discovery process to sophisticated artificial intelligence agents that understand nuance better than any keyword ever could. This fundamental shift marks a departure from the traditional retail model where users actively hunted for items; now, the items find the users through conversational interfaces. In

How Can Modular ERP Deployment Accelerate Growth?

The traditional enterprise resource planning landscape often resembles a labyrinth where ambitious organizations find themselves wandering through years of integration cycles without reaching a tangible destination. This phenomenon, frequently described as implementation fatigue, occurs when the momentum of a digital transition is swallowed by shifting project scopes and runaway budgets. In 2026, the necessity for agility has never been more

Avaloq Enters US Market with Modular Wealth Platform

American financial advisors have spent the better part of the last decade wrestling with a digital paradox where the abundance of new technology has only served to further isolate critical client data. While firms have invested heavily in front-end tools, the underlying infrastructure often remains a tangled web of legacy systems that cannot communicate effectively. This fragmentation forces wealth managers

Fill out the form below