How long is Marine Boot Camp? Sandboxx on July 14, 2017 U.S Marine Boot Camp lasts 12 weeks and is broken into 3 phases. To learn more about each week of Marine Boot Camp, download the SANDBOXX app and be sure to and follow us on social media. Like this:Like Loading... Category: Marines, Team Sandboxx Tag: How long is marine boot camp? Post navigation Previous: Previous post: What’s After Boot Camp?Next: Next post: Quick Guide: 6 Things To Memorize Before Army Basic Training Share this:TwitterFacebookGoogle Published by Sandboxx View all posts by Sandboxx Leave a comment Leave a Reply Cancel reply Enter your comment here... Fill in your details below or click an icon to log in: Email (required) (Address never made public) Name (required) Website You are commenting using your WordPress.com account. ( Log Out / Change ) You are commenting using your Twitter account. ( Log Out / Change ) You are commenting using your Facebook account. ( Log Out / Change ) You are commenting using your Google+ account. ( Log Out / Change ) Cancel Connecting to %s Notify me of new comments via email.