What size grow bag for tomatoes? We would recommend 3 gal bags for tomatoes indoor grow.
Gallon is a unit of volume (volume), abbreviated gal. Gallons are divided into imperial gallons and American gallons, and the sizes of the two are different.
What size grow bag for tomatoes should you get?
The imperial gallon is an informally standardized unit used in the United Kingdom, its former colonies and Commonwealth countries. The United Kingdom completed the conversion to the International System of Units in 1995. Officially, gallons are only used in the United States, Liberia and Myanmar. Other countries or regions use the International System of Units, the metric system, also known as the metric system.
- 1 gallon (US) = 3.785 412 liters
- 1 gallon (English) = 4.546092 liters (accurate value)
- So generally 3 gallons have more than 10 liters. Let’s take a look at the size introduction in the figure below.

There are 11.4 liters in 3 gallons, and then you need to pay attention to the depth of the planting container to grow fruits and vegetables. The pot of 3 gallons also has 26.5cm. This depth is not bad, generally at least 20cm or more of fruits and vegetables, so if you grow tomatoes, it is recommended to use 3 gallons or more pots for planting. One pot per plant is still possible. Click to learn more about tomatoes grow tutorial.What size grow bag for tomatoes? Do you have answers now?