насколько мне известно

as far as I know

→ насколько
phrase Uncommon #22,105
as far as I know Used to qualify a statement and indicate that it reflects the speaker's current knowledge, without claiming absolute certainty. It can appear at the beginning or end of a sentence.
RU: Насколько мне известно, магазин закрывается в восемь.
EN: As far as I know, the store closes at eight.
phrase Rare #46,306
as far as I know A common introductory phrase indicating that the statement is based on the speaker’s limited knowledge.
RU: Насколько мне известно, поезд отправляется в восемь.
EN: As far as I know, the train leaves at eight.

Насколько мне известно, Том всё ещё женат.

As far as I know, Tom is still married.

Насколько мне известно.

As far as I know.

— Суспирия (1977)

Насколько мне известно, эти слухи не верны.

As far as I know, these rumors are not true.