1 US Gallon = 128 US fluid Ounces
Hope this helps! :)
4 gal = 512 fl oz
(6 oz per 100 gal) times (20) = (120 oz per 100 gal), or (1.2 oz per gal) .
1 US gal is 128 fluid ounces, so 2 gal is 256 fl oz.
That is 256 fl oz.
That is 192 fl oz.
That is 192 fl oz.
That is 64 fl oz.
2
256
you would use 2 ounces of weed killer per gallon .
That is 384 fl oz.
That is 256 fl oz.