By Daniel, ESL Educator & Idiom Series Author
“She always goes an extra mile for her customers.”
“Our team went the extra miles this year.”
Both sentences are very close, and any native speaker would understand them. But each has one small slip. The fixed phrase is go the extra mile: the, not an, and mile, not miles. Let’s look at why the phrase has exactly one mile in it, and where that mile comes from.
Quick answer: To go the extra mile means to do more than what is required or expected, usually to help someone or to do a job really well.
A walk along a Roman road
This idiom has a clear source: the Bible. In the Sermon on the Mount, Jesus tells his listeners, in the words of the King James Bible (1611): “And whosoever shall compel thee to go a mile, go with him twain.” (Twain is an old word for two.) The verse is Matthew 5:41.
Why would anyone “compel” you to walk a mile? The Greek verb in the original text was a technical word for the Roman practice of requisitioning: officials and soldiers could force local people to provide goods or labor, for example to carry a load or act as a guide. The same word appears later in Matthew, when a man named Simon is forced to carry Jesus’ cross. So the first mile was forced. The second mile was a free choice, and that’s the heart of the idiom.
For a long time, English speakers talked about going “the second mile.” The word historian Pascal Tréguer found that version in print in 1816. The wording we use today, “go the extra mile,” appears in his search in American sermons in 1901 and 1903. (He notes that earlier examples may still be found.)
Something to notice: we rarely say it about ourselves
Here is a point most dictionaries don’t mention. Go the extra mile is a compliment, and compliments sound best when someone else gives them.
- ✅ “Our nurse really went the extra mile for my mother.” (praise for someone else)
- ✅ “Thank you for going the extra mile.” (a very common thank-you)
- ⚠️ “I always go the extra mile.” (fine in a job interview or résumé, but in conversation it can sound like bragging)
You’ll also see it constantly in job ads (“We’re looking for someone willing to go the extra mile”) and in customer reviews. In those places, it often means extra work beyond the job description, so it’s worth reading carefully!
How to use it naturally
- Fixed words: go the extra mile. Not “an extra mile,” not “extra miles,” not “one more mile.”
- Tense: go / goes / went / has gone the extra mile.
- Adding a person: go the extra mile for someone: “He went the extra mile for his students.”
- Adding an action: go the extra mile to do something: “The hotel went the extra mile to make our stay special.”
- As an adjective: “extra-mile service,” “an extra-mile attitude” (less common, mostly in business writing).
- Register: neutral. It works in a thank-you card, a business email or a casual chat.
Related expressions
- above and beyond: very close in meaning, a little more formal: “She went above and beyond.”
- bend over backwards: try very hard to help or please someone, sometimes too hard.
- do the bare minimum: the opposite. Only what is absolutely required.
Quick practice
Correct the two sentences from the top of this post.
- She always goes an extra mile for her customers.
- Our team went the extra miles this year.
Answers: 1. She always goes the extra mile for her customers. 2. Our team went the extra mile this year.
Bonus: Think of one person who went the extra mile for you recently. Write them one sentence: “Thank you for going the extra mile to…” It’s good English practice, and it might make their day.
A Note from Daniel
What stands out to me regarding where this idiom comes from is the situation in which it was first taught. It wasn’t meant to encourage people to overachieve or impress a boss. Instead, it was advice for people living under occupation, telling them to answer an unfair demand with such generosity that it changed the whole situation. Today, the phrase has lost some of its political meaning, but it still carries the same idea: moving from what you have to do to what you choose to do, from the bare minimum to something extra. Choosing to go a little further than necessary is still one of the clearest signs of good character. If you have a story about someone who went the extra mile for you, or a time you did it for someone else, I’d really like to hear it.
Sources
- Tréguer, P. “The biblical origin of ‘to go the extra mile.’” Word Histories, 2023. wordhistories.net
- “Matthew 5:41.” Wikipedia. wikipedia.org
- “Go the Extra Mile – Idiom, Meaning & Examples.” Grammarist. grammarist.com
- Cambridge Dictionary, entry: “go the extra mile.”
Every word carries a story. Stay curious. — Daniel