How long does it take an Alaskan king crab to grow big enough for harvesting?

Alaskan king crabs typically take about 7 to 10 years to reach a size large enough for harvesting, which is generally around 6.5 inches in carapace width. Their growth rate can vary based on environmental conditions, availability of food, and other factors. Harvesting regulations ensure that crabs are of adequate size to maintain sustainable populations.