Spearow evolves into Fearow at level 20 in Pokémon FireRed.

Quick Scoop

  • Evolution level: Spearow → Fearow at level 20.
  • This is an automatic level-up evolution (no stone or special condition needed).
  • You can let Spearow stay unevolved a bit longer if you want it to learn certain moves before evolving, but it will still evolve the next time it levels up past 20 unless you cancel.

In practical terms: once your Spearow hits level 20 in FireRed, it will try to evolve into Fearow right after the battle where it gains that level.

Tiny tips for FireRed

  • Spearow is a Normal/Flying type you can catch on early routes like Route 22, so you’ll usually reach level 20 before the mid-game gyms.
  • Fearow hits harder and becomes a solid early-game flyer for taking on many trainers and routes.

SEO bits

  • Focus phrase: when does spearow evolve in fire red – answer: level 20.
  • This is still true in current FireRed/LeafGreen play and in recent guides and forum discussions.

TL;DR: In Pokémon FireRed, Spearow evolves into Fearow at level 20.

Information gathered from public forums or data available on the internet and portrayed here.