Does a black tie wedding guest dress have to be floor length?

Floor length gowns are the classic choice for black tie weddings, but they are not a strict rule. Many guests wear a smart midi dress that falls below the knee, or a sophisticated cocktail dress in a formal fabric like silk, satin or crepe. What matters more than length is the overall formality. Avoid casual fabrics like cotton or jersey, and steer clear of daytime styles like sundresses or wrap dresses.

If the wedding is in a grand venue or a cathedral, a longer dress might feel more fitting. For a modern black tie wedding in a city hotel or a barn conversion, a shorter dress can work beautifully. Consider the time of day too, evening weddings usually call for more formal attire. If you are worried, you can always ask the couple or the wedding party. They will appreciate you checking rather than turning up underdressed. Remember that black tie is about looking polished and respectful. A well fitted midi dress with elegant accessories can be just as appropriate as a floor length gown.