A medium russet potato usually takes about 45–60 minutes to bake in a hot oven, but the exact time depends on size and temperature.

Quick Scoop: Key Timing

  • At 425°F (220°C): about 45–60 minutes for medium potatoes until fork‑tender and skins crisp.
  • At 400°F (200°C): about 45–60 minutes for medium, 35–45 minutes for small, 60–75 minutes for large.
  • General range across recipes: roughly 50 minutes to 1½ hours, depending mainly on size.

You’ll know it’s done when a fork slides in easily and the center feels soft; many cooks also look for an internal temperature around 205–210°F in the middle for that fluffy interior.

Approximate Baking Times by Size (400°F / 200°C)

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Potato size (whole) Approx. weight Typical bake time
Small 5–6 oz (140–170 g)35–45 minutes
Medium 7–9 oz (200–255 g)45–60 minutes
Large 10–12 oz (280–340 g)60–75 minutes
Extra‑large 1 lb+ (450 g+)75–90 minutes

Quick “recipe‑style” guide

  1. Preheat oven to 400–425°F (200–220°C).
  1. Scrub potatoes, dry, poke a few holes with a fork, rub with a little oil and salt.
  1. Place directly on the oven rack or on a tray and bake using the times above.
  2. Start checking at the earliest time; continue until a fork pierces easily and skin is crisp.

Some cooks like very long, low‑temperature “slow baked” potatoes (2–3 hours at 350°F) for extra nutty flavor and very crisp skins, but for everyday dinners the 45–60 minute window at a higher temperature is the go‑to.

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Wondering how long it takes to bake a potato? Learn exact oven times by size and temperature, plus simple tips to get crispy skin and fluffy insides every time.