Translation guide
Used to emphasize that something is obvious or expected. In Japanese, this is often expressed with set phrases like 言うまでもなく or もちろん, or by using sentence-ending particles that convey obviousness.
The speaker wants to stress that the following statement is clearly true or expected by everyone.
A formal, written expression meaning 'it goes without saying'. Often used at the beginning of a sentence.
The speaker adds a comment that is clearly true given what was just said, often as a concluding remark.
Pattern meaning 'it goes without saying that...'. Attach to a clause to state that it is obvious.
言うまでもなく is more formal and often used in writing or speeches. もちろん is versatile and can be used in casual conversation. For everyday situations, もちろん is safer.
Of course, I'll go too.
Needless to say, health is important.
A common, everyday word meaning 'of course' or 'needless to say'. Can be used in both spoken and written Japanese.
Needless to say, he's coming too.
A slightly more formal and explicit version of 言うまでもなく, often used to introduce a statement that should be obvious.
Needless to say, you should follow the rules.
Literally 'it's obvious, but...'. A more casual way to state something that should be common sense.
Needless to say, being late is not acceptable.
Needless to say, he is excellent.
Using 当然だ or 当然のことだ to state that something is natural or expected.
Needless to say, he got angry.
Needless to say, this issue is important.
Do not try to translate 'needless to say' word-for-word into Japanese. Phrases like 言う必要がない are not used in this context and will sound unnatural.
Needless to say, he didn't come.
Casual/spoken