Different suppliers -- whether they're located in the US or around in the world -- price oil differently. Sometimes it is priced per pound, per kilogram, per liter, per metric ton, or per gallon. It can be confusing to get pricing from so many different suppliers for bulk oils.
This means that as a buyer, you'll need to be prepared to convert both english to metric values AND volume to weight. Of course to do the latter, it depends on the density of the material (in this case olive oil).
To help avoid the confusion, we've written some conversion calculations you can follow rather easily.
Consider this list a set of conversion standards, so that you can compare all of your numbers quickly and simply. This will help know exactly how much oil you're buying and allow you to evaluate prices apples to apples.
1 Pound = .454 Kilograms
1 Pound = .497 Liters
1 Pound = .131 Gallons
1 Pound = 16.8 Ounces
1 Gallon = 7.61 Pounds
1 Gallon = 3.452 Kilograms
1 Gallon = 3.78 Liters
1 Gallon = 128 Ounces
1 Liter = 2.013 Pounds
1 Liter = .264 Gallons
1 Liter = .913 Kilograms
1 Liter = 33.8 Ounces
1 Kilogram = 2.025 Pounds
1 Kilogram = .2660 Gallons
1 Kilogram = 34.05 Ounces
1 Kilogram = .913 Liters
1 Metric Ton = 2,204.6 Pounds
1 Metric Ton = 290 Gallons
1 Metric Ton =1,097 Liters
1 Metric Ton = 1,000 Kilograms
1 Tanker = 48,000 Pounds
1 Tanker = 6,308 Gallons
1 Tanker = 23,876 Liters
1 Tanker = 21.77 Metric Tons
1 FlexiTank = 43,000 Pounds
1 FlexiTank = 5,650 Gallons
1 FlexiTank = 21,389 Liters
1 FlexiTank = 19.5 Metric Tons
1000 Liter Tote = 264 Gallons
264 Gallon Tote = 2010 Pounds
264 Gallon Tote = 1000 Liters
275 Gallon Tote = 2093 Pounds
275 Gallon Tote = 1,041 Liters
330 Gallon Tote = 2511 Pounds
330 Gallon Tote = 1,249 Liters
55 Gallons = 419 Lbs
55 Gallons = 7,040 Ounces
55 Gallons = 208.2 Liters
55 Gallons = 190 Kilograms
1 Gallon = 7.61 Pounds
1 Gallon = 3.78 Liters
1 Gallon = 128 Ounces
1 Gallon = 3.45 Kilograms
3 Liters = 6 Pounds
3 Liters = .79 Gallons
3 Liters = 101.5 Ounces
3 Liters = 2.74 Kilograms
35 Lbs = 17.41 Liters
35 Lbs = 4.59 Gallons
35 Lbs = 588.7 Ounces
35 Lbs = 15.9 Kilograms
5 Gallons = 38 Pounds
5 Gallons = 18.9 Liters
5 Gallons = 17.26 Kilograms
5 Gallons = 640 Ounces
1 Liter = 2.013 Pounds
1 Liter = 33.81 Ounces
750 Milliliter = 1.51 Pounds
750 Milliliter = 25.4 Ounces
750 Milliliter = 0.75 Liters
500 Milliliter = 1 Pound
500 Milliliter = 16.9 Ounces
500 Milliliter = 0.5 Liters
250 Milliliter = .5 Pounds
250 Milliliter = 8.45 Ounces
250 Milliliter = 0.25 Liters
Note: All calculations above are rounded to an appropriate round number or decimal, depending on their total volume.