The flag of the British Virgin Islands features a blue field (Pantone 286C) with the Union Flag in the upper hoist-side quadrant, and the territory's coat of arms on the fly side. The aspect ratio of the flag is 1:2.

The Union Flag comprises red (Pantone 186C) and white (Pantone Safe) crosses and diagonals on a blue (Pantone 280C) background.

The coat of arms consists of a green shield with a vertical band containing 11 lamps joined by a wavy line, symbolizing the Sir Francis Drake channel. Above the shield, there is a helmet and mantling, with a woman dressed in green holding a torch and lamp.

Exact geometric properties and measurements are not universally standardized for this flag, so these may vary depending on individual flags' manufacturing specifications.