The standard shower curtain size is typically around 72 inches wide by 72 inches long, which fits most standard bathtubs and shower setups.

Quick Scoop: Standard Shower Curtain Size

For a typical home bathroom, when people ask “what is a standard shower curtain size” , they almost always mean:

  • 72 inches wide × 72 inches long (about 180 cm × 180 cm).

This size is designed to:

  • Cover a standard 60‑inch tub with extra width for overlap, so water stays inside the tub.
  • Reach from a typical curtain rod down close to the tub edge or floor without dragging too much.

Some brands list slightly different “standard” dimensions like 70 × 72 inches or 70 × 70 inches, but these are minor variations on the same idea: full coverage for a standard tub opening.

Other Common Sizes (If Your Shower Isn’t Standard)

If your bathroom is a bit quirky, you might see:

  • Stall or small shower: around 54 inches wide × 78 inches long.
  • Extra-long: around 72 inches wide × 84–96 inches long for high ceilings or deeper tubs.
  • Extra-wide: 108 inches wide × 72 inches long, or similar, for wide or wraparound showers.

These sizes are “specialty” options, but the standard most stores stock by default is still 72 × 72 inches.

Quick Measuring Tip Before You Buy

If you want a quick sanity check:

  1. Measure the width of your tub or shower opening.
  2. Add roughly 10–12 inches so the curtain can hang in soft folds and fully cover the opening.
  1. Measure from the top of your curtain rod down to where you want the curtain to fall, then subtract the length of your hooks/rings to pick the right curtain length.

This simple method helps confirm whether the standard 72 × 72 size will work for your space (it usually does for a standard tub).

TL;DR: For “what is a standard shower curtain size,” the answer you can safely shop with is 72" × 72" for most regular tubs and showers.

Information gathered from public forums or data available on the internet and portrayed here.