A verst (Russian: верста, romanized: versta) is an obsolete Russian unit of length defined as 500 sazhen.

This makes a verst equal to 1.0668 kilometres (3,500 feet).

In Russian, the nominative singular is versta, but the form usually used with numbers is the genitive plural verst—10 verst, 25 verst, etc.—whence the English form.

A mezhevaya versta (Russian: межевая верста, literally "border verst") is twice as long as a verst.

[1]In Finland, a virsta was 1,068.84 m according to the Swedish standard, defined in 1827 as 1⁄10 of a peninkulma, the Finnish language name for the pre-metric Swedish mil, used in Finland since the early 17th century (see Obsolete Finnish units of measurement), or 600 syli (Swedish fathoms, 1.781 m).