Nails grow at an average rate of 0.1 mm/day (1 cm every 100 days). Fingernails require from 4 to 6 months to regrow completely. Toenails require 12 to 18 months to regrow. Your growth rate is dependent upon age, season, exercise level, and hereditary factors

How fast do nails grow in a week
Nail the Nail ProHow fast do nails grow in a week