Return to the Container Gardening Forum | Post a Follow-Up

Container sizes

Posted by Pegleg48 none (My Page) on
Fri, May 25, 12 at 14:59

Hi all
This will be my 3rd year container gardening, and the first that I'm trying to get big enough containers for my veggies.
I know you need at least 5 gallons to grow just about anything bigger than lettuce, but my problem is: how can you tell how may gallons a container is?
Most planters/containers give you sizes in inches (if at all) and not gallons (or Litres, in Canada-land).
If a standard bucket (the kind you get at the hardware store/leftover from food storage) is 5 gallons, whats a good example of 10? 25?
I got a couple big planters, but have no idea how much they will actually hold.
Photos of examples would be great.
Or, should I dig out the measuring tape and do some basic math?

Follow-Up Postings:

RE: Container sizes

You could take what you know is a 5 gallon container and pour water from it into the larger ones.
The ones I have hold about 60 quarts of soil to the brim, I use a whole 55 quart bag in each pot.
That makes them about 15 gallons each.

To me I think right around 15 gallons is perfect, plenty big for a good root system but not so big as to be impossible to move.

I have 5, 15 gallon pots and one 95 gallon "Vegtrug" on my deck.

RE: Container sizes

Check out a chart

Here is a link that might be useful: Litres to gallons /gal to litres

RE: Container sizes

Yeah, I've more or less guess-timated how big my containers are. I've been using 30L bags of soil, which us apx 8 gallons, so my big pots are a bit bigger than that (probably about 10-12, one of them might be 15.) In any case, if my tomatoes don't get as huge as they could be, I'm not going to make a fuss as long as they produce something.
Garden is more or less established (after a long afternoon of work).

RE: Container sizes

Assuming the pot is straight-sided, I think you could average out the distances across the top and bottom of the pot and then calculate the pot volume as though it were a cylinder of the averaged width. Alter as appropriate for pots that are different shapes.

It's probably easier to just do the maths, since your photographed examples will need to be checked against what you have available anyway. Heck, there are probably tables somewhere on the internet that give volumes for certain pot sizes.

RE: Container sizes

Here's a handy calculator

Here is a link that might be useful: Volume Calculator

RE: Container sizes

Here's a great site.

Hope it helps.


Here is a link that might be useful: Online Conversion Chart

 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!

Return to the Container Gardening Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.

Learn more about in-text links on this page here