How Long Should an Email Be? The Ideal Email Length for Every Situation

The ideal email length is 50 to 125 words, or about five sentences. That is long enough to say who you are, what you want and what happens next, and short enough that the reader can answer from their phone without scrolling.

Longer emails are not more respectful. They are harder to answer, which is why they sit unanswered.

Below are the word counts that work for each kind of email, and how to cut a long one down without losing anything that matters.

The one-screen rule

Most emails are now read on a phone, and a phone shows roughly the first hundred words before the reader has to scroll. Whatever is below that line is read only by someone who has already decided to care.

So the rule is simple: your ask has to be above the fold. Not your background, not your qualifications, not your gratitude. The thing you want them to do.

If you cannot see your ask without scrolling on your own phone, the email is too long.

Ideal email length by situation

| Email | Words | Why | | --- | --- | --- | | Cold email to a stranger | 75 to 125 | They owe you nothing, so every extra line is a reason to stop | | Email to a professor | 100 to 150 | One line about their work earns you a little more room | | Job or internship application | 120 to 200 | The CV carries the detail; the email says why you, why them | | Follow-up with no reply | 30 to 60 | Three sentences, in the same thread as the first email | | Sale or offer to customers | 50 to 150 | The offer, the dates, one link | | Reply to a client | 50 to 150 | Answer the question first, add context after | | Internal note to a colleague | As short as it reads naturally | Four words is a fine email | | Thank-you after an interview | 75 to 125 | Specific, warm, no new arguments |

If you are over the number and cannot cut, that usually means the email is carrying two separate requests. Send two emails.

What actually makes an email long

It is rarely the content. It is four habits:

1. A warm-up paragraph. "I hope this email finds you well in these times." Delete it. Start with their name and your first real sentence.
2. Your whole history. Three projects, two courses and a club are not evidence. One concrete detail is.
3. Hedging. "I was just wondering if it might perhaps be possible to maybe…" Ask the question.
4. Repeating the ask three ways. Once is enough, at the end.

Before and after

Before, 168 words:

Dear Sir, I hope this email finds you in the best of health. My name is Bilal and I am currently a final-year student of Computer Science at [university], where I have maintained a strong academic record throughout my degree and have been actively involved in various co-curricular activities as well. I am writing to you because I am very much interested in the field of machine learning, which I believe is a very promising field with a lot of scope, and I have done several projects in this area including a final-year project and two course projects, as well as an online specialisation. I would be extremely grateful if you could kindly consider me for any available internship opportunity in your organisation, as I am a hardworking and dedicated individual who is willing to learn. Please find my CV attached for your kind consideration. Looking forward to your positive response.

After, 71 words:

Dear Ms. Fatima, I am a final-year Computer Science student. For my final-year project I trained a model to flag defective parts from factory camera images, and it is now running on a shop floor in Faisalabad. I saw you are hiring machine learning interns. Are you taking applications for the spring batch? My CV is attached. Best regards, Bilal Ahmed [university] · [phone]

Both are samples; the names and the project are made up.

Nothing true was lost. The second one can be answered in one line, which is why it will be.

When a longer email is right

Length is not the enemy; unnecessary length is. Write as long as you need when you are:

• answering a question that genuinely has four parts;
• writing a proposal or quote the client asked for;
• recording a decision so the thread has it in writing;
• explaining a problem to someone who has to fix it.

Even then, put the summary in the first three lines and the detail under headings, so the reader can stop when they have what they need.

How to cut an email in half

1. Delete the first sentence. It is almost always a warm-up.
2. Move your ask to the second paragraph.
3. Keep one piece of evidence, the most specific one, and delete the rest.
4. Replace every "I was wondering whether you might" with a direct question.
5. Read it aloud. Anything you would not say out loud, cut.
6. Check it on your phone. If the ask is below the fold, cut again.

Does length change when you email many people at once?

Yes, in one direction: shorter. An email going to 200 customers or 30 professors has to work without any shared context, so the first line has to carry it.

It also has to be personal, which is a separate thing from being long. "Hi Ayesha" and one detail that belongs to that person beats four paragraphs of general enthusiasm.

With free sending on OpenPromote you write the short version once, upload your list, and each person's name and details are filled in, sent from your own Gmail, free for up to 200 people a month. If you want the email written from your own facts and kept tight, EmailCurator does that from $0.99 for 2 emails. For a worked example of a short, specific email, see our guide to emailing a professor for a research position.

Checklist: is your email the right length?

• [ ] Under 125 words, unless it is an application or a proposal
• [ ] The ask is visible without scrolling on a phone
• [ ] No warm-up sentence before the first real line
• [ ] One piece of evidence, not three
• [ ] One request, not two
• [ ] No sentence you would not say out loud
• [ ] Subject line under 50 characters
• [ ] Read once on your own phone before sending

Short emails are not blunt. They are easy to answer, and an answer is the whole point. Send your first email free.