Boiling potatoes usually takes between 10 and 25 minutes once the water is at a steady boil, depending on the potato size and cut.

Quick Scoop: How long do potatoes take to boil?

Think of potato boiling time in three main categories:

  • Small cubes (for mash, salad, etc.)
    • 1–2 cm / ½–¾ inch pieces
    • Boil: about 10–15 minutes
    • Start checking at 10 minutes with a fork.
  • Medium chunks / halved potatoes
    • Boil: about 15–20 minutes
    • Great for chunky mash or rustic sides.
  • Whole potatoes
    • Small whole: 15–20 minutes
    • Medium whole: 20–25 minutes
    • Large baking-type potatoes can be 25–30 minutes or more.

The real test: they’re done when a fork or knife slides in with almost no resistance.

Step‑by‑step: Perfect boiled potatoes

  1. Prep the potatoes
    • Wash well; peel if you like, or leave skins on for a rustic feel.
    • Cut into even pieces so they cook at the same speed.
  2. Start in cold water
    • Place potatoes in a pot, cover with cold water by about 2–3 cm (1 inch).
    • Add salt to the water (it seasons from the inside).
  3. Bring to a boil, then simmer
    • Bring water to a rolling boil.
    • Lower heat to a gentle simmer (small, steady bubbles), not a wild boil.
  4. Check for doneness
    • Begin testing a little before the expected time.
    • If the knife falls out easily when you poke a piece, they’re ready.
  5. Drain and use
    • Drain immediately to avoid overcooking.
    • For mash, return to the warm pot a minute to steam off excess moisture before mashing.

Mini timing “cheat sheet”

Potato type / cut Approx. time once boiling Best for
Small cubes (1–2 cm) 10–15 minutes Potato salad, mash
Medium chunks 15–20 minutes Rustic mash, stews
Small whole new potatoes 15–20 minutes Side dish with butter/herbs
Medium whole 20–25 minutes Meal prep, sides
Very large whole 25–30+ minutes Later roasting, stuffed potatoes

Little story to remember it

Imagine three “potato characters” racing in a pot:

  • The tiny cube sprints and finishes in about 10–15 minutes.
  • The chunky cousin trots in at 15–20 minutes.
  • The big whole potato plods along, crossing the line closer to 20–25+ minutes.

Whichever one you choose, keep poking with a fork near the end of the race—that’s your true finish line.

FAQ style quick hits

  • Do I time from cold or from boiling?
    From when the water reaches a boil, then lower to a simmer and start timing.

  • Why are my potatoes mushy?
    Likely boiled too long, or cut too small and left in vigorously boiling water instead of a gentle simmer.

  • Why are they hard in the middle?
    They just need more time; keep simmering and test every 2–3 minutes.

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