For a typical home foot soak, most guides suggest about 1/2 cup of Epsom salt in a standard basin of warm water, soaking for 15–20 minutes.

Quick Scoop

  • Use about 1/2 cup of Epsom salt in a regular foot basin (around 3–4 liters or about 1 gallon of warm water).
  • For a larger tub or deeper water, you can go up to 1 cup per gallon if you want a stronger soak, as long as your skin tolerates it well.
  • Soak your feet for 15–20 minutes , usually 2–3 times per week is enough for relaxation and tired feet.
  • Make sure the water is warm, not hot, and dry your feet afterward and apply moisturizer to avoid drying out your skin.

Simple mixing guide (by container size)

Foot bath sizeWater amountEpsom salt amount
Small basinAbout 3–4 L (~1 gallon)1/2 cup (standard soak)
Medium tubAbout 5–6 L (~1.5 gallons)2/3–3/4 cup (a bit stronger)
Large bucket/tub8 L or more (~2+ gallons)Up to 1 cup per gallon
[7][5][1][3] If you have diabetes, poor circulation, open wounds, or very sensitive skin, check with a healthcare professional before doing Epsom salt soaks, and stop if you notice irritation or increased pain.

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