🪴 Indoor Plant Pot Size Calculator
Find the perfect pot diameter, volume & soil capacity for any indoor plant
| Plant Type | Canopy Spread | Min Pot Diameter | Recommended Pot | Pot Depth | Volume (qt) |
|---|---|---|---|---|---|
| Succulent / Cactus | 2–4 in | 3 in | 4–5 in | 3–4 in | 0.5–1 qt |
| Herb / Annual | 4–8 in | 5 in | 6–8 in | 5–6 in | 2–4 qt |
| Orchid | 4–8 in | 4 in | 5–6 in | 4–6 in | 1–2 qt |
| Pothos / Vine | 6–12 in | 6 in | 6–8 in | 5–7 in | 2–4 qt |
| Peace Lily | 12–18 in | 8 in | 10–12 in | 8–10 in | 6–10 qt |
| Snake Plant | 8–14 in | 7 in | 8–10 in | 10–14 in | 4–8 qt |
| Monstera | 18–30 in | 10 in | 12–14 in | 10–12 in | 10–16 qt |
| Fiddle Leaf Fig | 20–36 in | 12 in | 14–16 in | 14–16 in | 15–25 qt |
| Indoor Palm | 24–48 in | 14 in | 16–24 in | 14–18 in | 20–45 qt |
| Large Tropical Tree | 36+ in | 18 in | 20–30 in | 16–24 in | 40–80 qt |
| Pot Diameter | Diameter (cm) | Typical Depth | Volume (qt) | Volume (L) | Soil (dry oz) |
|---|---|---|---|---|---|
| 3 in | 7.6 cm | 3 in | 0.4 qt | 0.4 L | 8 oz |
| 4 in | 10 cm | 4 in | 0.8 qt | 0.75 L | 14 oz |
| 5 in | 12.7 cm | 5 in | 1.5 qt | 1.4 L | 1.5 lbs |
| 6 in | 15.2 cm | 6 in | 2.5 qt | 2.4 L | 2.5 lbs |
| 8 in | 20.3 cm | 8 in | 6 qt | 5.7 L | 5 lbs |
| 10 in | 25.4 cm | 9 in | 11 qt | 10.4 L | 9 lbs |
| 12 in | 30.5 cm | 10 in | 17 qt | 16 L | 14 lbs |
| 14 in | 35.6 cm | 12 in | 26 qt | 24.6 L | 20 lbs |
| 16 in | 40.6 cm | 14 in | 38 qt | 36 L | 30 lbs |
| 20 in | 50.8 cm | 16 in | 66 qt | 62.5 L | 50 lbs |
| Bag Size | Volume | Pots Filled (6 in) | Pots Filled (10 in) | Pots Filled (14 in) |
|---|---|---|---|---|
| Small (4 qt) | 3.8 L | 1–2 pots | – | – |
| Medium (8 qt) | 7.6 L | 3 pots | – | – |
| Standard (16 qt) | 15.1 L | 6 pots | 1 pot | – |
| Large (25 qt) | 23.7 L | 10 pots | 2 pots | – |
| XL (50 qt) | 47.3 L | 20 pots | 4–5 pots | 1–2 pots |
| Jumbo (2 cu ft) | 56.6 L | 22 pots | 5–6 pots | 2 pots |
The size of the plant decides the pot size during potting. Pot be 1-2 inches bigger than the root ball. Plant specialists most commonly advise to choose a pot 2 inches bigger than the plant you buy or transplant.
That extra space gives the plant breathing room of at least 1 to 2 inches in diameter
Choose the Right Pot Size for Your Plant
Practical advice: buy a decorative pot one inch bigger than the nursery pot. Measure the diameter of the pot top. So, if the nursery pot has 4 inches of width, look for 5-inch pots.
Sometimes it is hard to find a good size of pot. Moreover, nursery pots are not always exactly the size on the label. A 4-inch pot can actually have 4.25 inches, which will stop you from putting it in a decorative pot with a 4-inch opening.
Widely, big pots answer for big plants. Here the root-shoot ratio: every leaf and shoot requires some roots for support. Even so too fast increase in a much bigger pot creates troubles.
Little plants in very big pots have too much soil compared with roots. More soil implies bigger water skill, that can cause root rot. Big pots preserve too much water if roots do not absorb the moisture.
So best expand pot size gradulaly.
Most pots fit in series with 2-inch steps: since 2 inches, later 4, 6 and so on. For instance, 10-inch plant grows in 10-inch diameter pot, that usually stores 2.5 to 3 gallons.
For home decoration the pot size depends on the plant kind. Little as cactus and succulents do well in 4 to 6-inch pots. Flowering plants require 8 to 10-inch pots.
Pots under 0.31 quarts answer for houseplants, succulents and herbs, it is the most used size for table plants.
Decorative pots come in all styles, ceramic, clay, hanging or self-watering. The FÖRENLIG pot comes in sizes as 3½ inches, 4¾ inches, 7½ inches and 9½ inches, with gentle forms that work inside and outside. The gray FJÄRILSBUSKE pot has a sand-like glaze with traditional feel that adds warmth.
Always measure the diameter of the grow pot and compare with the opening of the decorative pot, for ensure that the plant passes through it. Nice pot with clean lines looks well in the family room and genuinely charms even an artificialplant.

