According to search results, the size of a 35-inch tire is approximately 35 inches in diameter. However, its important to note that tire sizes can differ slightly when discussing rim sizes, tire width, and aspect ratio, so while a 35-inch tire might come out to the same size as a 315 on a listing, the actual sizes may vary by plus or minus half an inch. Additionally, the actual height of a tire usually differs a bit from the theoretical height, depending on the rim width and inflation pressure. Therefore, its recommended to use an online calculator or consult with a tire professional to determine the exact size of a 35-inch tire for a specific vehicle and rim size.