How do you convert ounces to grams per square meter?

Answer 1

You don't You don't convert them, because you can't. There is no conversion, because the units are incompatible: the ounce is a unit of weight, whereas the gram per square meter is a unit of pressure.

Perhaps you meant you wish to convert ounces per square yard to grams per square meter. Now THAT's something that you could convert.

Another stab at the question An ounce equals approximately 28.35 grams. So, if you have X number of ounces of a substance (gold, for instance) in a square meter of area, simply multiply the number of ounces by 28.35 to get grams per square meter.

You Definitely Do! I do this every day at my job. It's a simple areal density conversion.

To go from grams/meter2 to ounces/yd2 you need to convert the weight units and then convert the area units like so.

x grams/meter2 * (1 lb/454 grams) * (16 oz/1 lb) * (1m2/1002cm2) * (2.542cm2/1in2) * (362in2/1yd2) = .0295 oz/yd2

But for simplicities sake, lets just say that 1 opsy = 33.9 gsm.

So just divide the GSM by 33.9 to get OPSY and multiply the OPSY 33.9 to get GSM.

You can't A unit of weight can't be converted to a unit of pressure. But you probably meant to convert a unit of pressure to another unit of pressure. We need to know what your starting unit actually was:

ounces per square inch

ounces per square foot

ounces per square yard

Those seem likely possibilities.

Ounces per square metre seems unlikely, as it is a mix of 2 different measurement systems.

Wrong thinking, folks! Ounces (weight) per square yard (AREA) or grams (weight) per quare meter (AREA) are units of measurement for the weight of material, as in clothing.

Example: One square yard of material weighs 5 ounces. Your t-shirts are 5 ounces (weight) per square yard (area) of material.

As metrics take over, it becomes grams (weight) per square meter (area) of material. So You Definitely Do! is correct!

Wrong Question

It doesn't matter if you are measuring pressure or the standard mass of a material. The units are not compatible. If the unit is oz./sq.ft it will convert differently than oz./sq.yd. It is most likely oz./sq.yd. as I have heard that that is standard in the clothing industry (I don't know for sure, but a friend of mine designed clothing and spoke in those terms), but in that case an assumption has been made that will drastically change the outcome if incorrect. - to the last writer, your answer is correct, but the question is wrong.