Idiom B1 Formal & Informal

Go the extra mile

To make more effort than is expected or required

Meaning

Go the extra mile — To make more effort than is expected or required; to do more than is necessary in order to achieve something well or to help someone.

Origin & History

The phrase has a biblical origin, drawn from Matthew 5:41 in the Sermon on the Mount. Under Roman rule, soldiers could legally compel Jewish citizens to carry their equipment for one mile. Jesus taught his followers that if forced to go one mile, they should willingly go two. Going beyond what was required became a symbol of generosity and moral virtue.

The expression entered general English use in the 20th century, shifting from its religious context into everyday professional and motivational language. Today it is widely used in workplaces, sports coaching, and customer service to describe exceptional effort.

Example Sentences

SentenceContext
She always goes the extra mile for her students, staying late to answer every question.Teaching / dedication
Our team went the extra mile to deliver the project ahead of schedule.Workplace performance
He went the extra mile by personally calling every customer to check they were satisfied.Customer service
If you want to succeed in this industry, you have to be willing to go the extra mile.Career advice
The hotel staff really went the extra mile — they even left flowers in our room.Hospitality / review
Going the extra mile in your preparation will make all the difference on exam day.Academic / study context

How to Use It

This idiom works in both formal and informal contexts. It is common in professional emails, performance reviews, job interview answers, and customer feedback. The verb "go" conjugates normally: goes, went, going, gone. It is often used with "always", "really", or "truly" to add emphasis.

You can also use the noun form: "going the extra mile" as a gerund phrase, or refer to someone as the type of person who "always goes the extra mile".

Common Mistakes

Mistakes to Avoid

She goes an extra mile for her clients.

She goes the extra mile for her clients. — Use 'the', not 'an'; the article is fixed.

They go the extra miles to help us.

They go the extra mile to help us. — 'Mile' is always singular in this idiom.

He always goes extra mile at work.

He always goes the extra mile at work. — Never omit 'the'; the full phrase is required.

Similar Idioms

Pull out all the stops Hit the ground running No pain, no gain Give the benefit of the doubt All Idioms →

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Frequently Asked Questions

What does "Go the extra mile" mean?
"Go the extra mile" means to make more effort than is expected or required. It describes doing more than is necessary in order to achieve something well or to help someone.
Where does the idiom "Go the extra mile" come from?
The phrase has a biblical origin from Matthew 5:41, in the Sermon on the Mount. Roman soldiers could legally compel Jewish citizens to carry their pack for one mile. Jesus taught that if forced to go one mile, one should willingly go two. Going further than required became an act of generosity and virtue.
Can you give an example of "Go the extra mile" in a sentence?
Here is an example: "She always goes the extra mile for her students, staying late to answer their questions." — used to describe exceptional dedication in a teaching context.
Is "Go the extra mile" formal or informal?
It can be used in both formal and informal contexts. It is common in professional settings such as job interviews and performance reviews, as well as in everyday conversation and customer feedback.
What CEFR level is "Go the extra mile"?
This idiom is typically taught at B1 level. It is an intermediate expression widely used in everyday English and professional communication, and it appears frequently in workplace and motivational contexts.
What are common mistakes with "Go the extra mile"?
A common mistake is using the wrong article or omitting it: "go an extra mile" or "go extra mile" are both incorrect. The correct form is always "go the extra mile". Another error is making "mile" plural — it is always singular in this idiom.
What idioms are similar to "Go the extra mile"?
Similar idioms include: Pull out all the stops, Hit the ground running, Give it your all, Go above and beyond. These all convey the idea of exceptional effort or exceeding expectations.
How do I practise idioms like "Go the extra mile"?
LexFizz's Flash Cards and Flip Tiles exercises are great for practising English idioms. Try writing your own example sentences using the idiom in different contexts, and listen for it in news reports, podcasts, and workplace conversations.
Can "Go the extra mile" be used in writing?
Yes. It is common in both spoken and written English, including professional emails, cover letters, and performance appraisals. It also appears naturally in informal writing and everyday conversation. Its meaning is immediately clear to most English speakers.
Does "Go the extra mile" have the same meaning in British and American English?
Yes, "Go the extra mile" is understood in both British and American English with the same meaning: to make more effort than is expected. It is one of the most widely recognised idioms across all major varieties of English.