Prom Dresses Under $100

The silhouette sets the mood for your prom-night entrance. A column gown creates a long, streamlined line, and a mermaid dress brings a fitted shape with a flare toward the hem. A-line dresses have a skirt that opens out from the waist, giving the look a playful sense of movement. Short prom dresses bring their own dressed-up energy through sculpted shapes, pleating, or embellishment, and midi dresses offer an elegant hemline that falls below the knee. Each direction leaves room for personal taste, whether the evening you have in mind feels romantic, sleek, or full of sparkle. Fabric gives that silhouette its character, especially as prom moves from daylight photos to an evening under the lights. Satin has a smooth sheen that highlights draping and folds, and crepe lends itself to clean, defined lines. Glitter knit brings shimmer across the fabric, while the embellishments on rhinestone prom dresses create distinct points of shine. Lace adds delicate pattern and dimension at a bodice or neckline. Within a $100 dress budget, details like these give a prom look its focus, with color adding another layer of personality—whether that means classic black, soft pink, or a striking red.