Jersey Mike’s Giant sub is generally about 14 to 15 inches long, depending on the source and how it’s measured.

Quick Scoop

  • Regular sub: about 7 to 7.5 inches.
  • Giant sub: about 14 to 15 inches, roughly double a regular.
  • Some sources quote 14 inches exactly, while others say it can be closer to 15 inches in practice.

The most reliable recent reports put it in that 14–15 inch range.

Extra context

A few lower-quality pages online claim much larger sizes, but those appear inconsistent with the more credible recent reports and should be treated cautiously. In normal ordering terms, “Giant” means the biggest standard sub size at Jersey Mike’s, not a special party-size sandwich.

TL;DR: a Jersey Mike’s Giant is about 14–15 inches long.