Let's vs Let's go

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

Let's

InformalTop 5,000 (fairly common)

Let's go

Top 1,000 (very common)
Most formal: Let's goMost common: Let's go
 Let'sLet's go
Pronunciation🇬🇧 //lɛts//🇺🇸 //lɛts//🇬🇧 //lɛts ɡəʊ//🇺🇸 //lɛts ɡoʊ//
MeaningA way to suggest doing something together.A way to suggest leaving or starting an activity together.
ExampleLet's go to the movies tonight!Let's go to the park this afternoon.
RegisterInformalNeutral
How commonTop 5,000 (fairly common)Top 1,000 (very common)
Collocationslet's go, let's have, let's do, let's see, let's trylet's go out, let's go home, let's go eat
Common mistakesConfused use with 'let us' in formal contexts., Omitting the apostrophe in 'lets'., Using it with verbs in past tense, e.g. 'let's went'.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 notesUse 'let's' to propose actions with others; it's casual and friendly. Avoid in formal writing.Commonly used for invitations or suggestions. Suitable in casual conversations among friends, but less formal in business settings.

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Let's
Let's go

Frequently asked questions: Let's vs Let's go

What's the difference between Let's and Let's go?

Let's: A way to suggest doing something together. Let's go: A way to suggest leaving or starting an activity together.

Which is more formal: Let's and Let's go?

Let's go is the most formal of these.

Which is more common: Let's and Let's go?

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

Can you show an example of each?

Let's: Let's go to the movies tonight! Let's go: Let's go to the park this afternoon.

Can I use Let's and Let's go interchangeably?

Not always. Let's 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.