Regarding the volume of travel bags: I'm wondering if 5 liters is a significant difference. I am comparing two different pieces of luggage. I'm not a math person, so I don't even understand how they determine the volume. I did find this website determining volume and I entered the luggage dimensions for each piece, and the results don't even match up with what the company has on their website. Now I'm really confused.
Any ideas about this? Thanks!
Posted by
San Francisco area
1896 posts
https://www.rei.com/product/794756/sea-to-summit-big-river-dry-bag-5-liters
Using this bag as an approximation it converts to about 300 cubic inches. So any combo of LxWxH that works to 300 will give you an idea of the size. For instance 6x5x10 inches. I would guess that’s about the size of a small packing cube.
Posted by
390 posts
5 liters if roughly 1.3 US gallons or 5.3 quarts
Picture how much space 1 gallon jug plus 1 quart more would take up in your suitcase.
Or picture how much you could fit into something a little bigger than a gallon jug.
As far as how they calculate the volume, I think I've read that there is an ASTM method for calculating the volume of luggage, but who knows if manufacturers really follow it.
Posted by
Huntsville, AL, USA
8360 posts
With us, everyone travels with one 22 inch carry on bag with swivel wheels. And a small backpack or big purse. We try to stick to 22 lbs. maximum weight. With careful packing, we can travel indefinitely with that.
European rental cars are smaller and that's all their trunks will hold.
I remember all the husbands in the Venice airport one morning--hauling two 45 lb. big suitcases for their wives. I thought "you poor guys."
Everyone needs to be able to haul their own luggage on and off trains and public transit.
Posted by
OP
Pennsylvania, USA
757 posts
Thanks, everybody.
khansen, that sounds like a large amount of space. More than I had anticipated!
Posted by
Magyarország / Rep of Texas
20821 posts
You need a bag, a garden hose and a 1L milk carton. ...
Posted by
390 posts
Why the garden hose?
Posted by
OP
Pennsylvania, USA
757 posts
Well, I probably should have mentioned the bags. Both are Briggs and Riley. One is the Rhapsody spinner underseat and the other is the Baseline spinner underseat. The measurements are almost the same but the capacity is different. How is that possible?
Posted by
Edmonds, WA 🌨 ☂
12034 posts
https://www.briggs-riley.com/products/cabin-spinner
https://www.briggs-riley.com/products/wheeled-cabin-bag
These the bags?
Someone cannot do basic math.
The interior measurements listed produce a result of 1670 cubic inches for the Baseline and 1695 cubic inches for the Rhapsody. A difference of 25 cubic inches ( 5 x5 x1 ; like an ipad mini folded in half)
Posted by
OP
Pennsylvania, USA
757 posts
Those are the ones, yes.
Thank you! An iPad mini folded in half is very easy to understand.
I'm terrible at math...
Posted by
Freedonia
16549 posts
To figure volume, many manufacturers use the ASTM method.
They fill the bag with plastic pellets about the size of bb's. Once they have filled it full, they then put the bb's in a large tube with volume markings.
The reasons the measurements don't always "measure up," is because the material on soft sided bags gives a little. We've all seen that when we overpack.
Posted by
496 posts
1 liter= approx 61 cubic inches. 5 liter approx 305 c.u.in. 10x5x6.