How long does it take for a fawn to grow up?

Fawns typically grow into mature deer in about 1 to 2 years, depending on the species and environmental factors. During their first year, they undergo significant growth, developing their adult coat and increasing in size. By the end of their second year, most deer reach sexual maturity and can reproduce. However, full physical maturity may take a bit longer, often up to 3 years or more.