Come on come on vs Let's go

When to use each in English, with meaning, register, and examples.

Come on come on

InformalTop 2,000 (common)

Let's go

Top 1,000 (very common)
Most formal: Let's goMost common: Let's go
 Come on come onLet's go
Pronunciation🇬🇧 //kʌm ɒn kʌm ɒn//🇺🇸 //kʌm ɑn kʌm ɑn//🇬🇧 //lɛts ɡəʊ//🇺🇸 //lɛts ɡoʊ//
MeaningA phrase used to encourage or persuade someone.A way to suggest leaving or starting an activity together.
ExampleCome on, come on! We need to hurry to the concert.Let's go to the park this afternoon.
RegisterInformalNeutral
How commonTop 2,000 (common)Top 1,000 (very common)
Collocationscome on over, come on in, come on guyslet's go out, let's go home, let's go eat
Common mistakesUsing in formal situations where a more polite expression is needed., Confusing with 'come on' which can also mean 'to arrive'.Using 'lets' instead of 'let's' as a contraction for 'let us', Confusing the meaning with 'let go', Not using it with a verb following, e.g., 'let's walk'
Usage notesUsed in casual conversations to motivate or urge someone. It may not be appropriate in formal contexts.Commonly used for invitations or suggestions. Suitable in casual conversations among friends, but less formal in business settings.

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Come on come on
Let's go

Frequently asked questions: Come on come on vs Let's go

What's the difference between Come on come on and Let's go?

Come on come on: A phrase used to encourage or persuade someone. Let's go: A way to suggest leaving or starting an activity together.

Which is more formal: Come on come on and Let's go?

Let's go is the most formal of these.

Which is more common: Come on come on and Let's go?

Let's go is the most common in everyday English.

Can you show an example of each?

Come on come on: Come on, come on! We need to hurry to the concert. Let's go: Let's go to the park this afternoon.

Can I use Come on come on and Let's go interchangeably?

Not always. Come on come on and Let's go are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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