wikiHow's. At 5 to 6 weeks old, a raccoon kit will weigh around 550 grams and be between 12 and 14 inches long. Young raccoons were capable of moving about their cages and regularly entered and left their nest-boxes after they were 6 to 7 weeks old. Playing next. Founded in 1807, John Wiley & Sons, Inc. has been a valued source of information and understanding for more than 200 years, helping people around the world meet their needs and fulfill their aspirations. Read your article online and download the PDF from your email or your account. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/d\/d4\/Feed-a-Baby-Raccoon-Step-1-Version-2.jpg\/v4-460px-Feed-a-Baby-Raccoon-Step-1-Version-2.jpg","bigUrl":"\/images\/thumb\/d\/d4\/Feed-a-Baby-Raccoon-Step-1-Version-2.jpg\/aid6129116-v4-728px-Feed-a-Baby-Raccoon-Step-1-Version-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"