Sport Serving Size HELP!!!

[underPAR]

I have a massive bag of porridge oats...

It says there are approximately 150 calories and 27 carbs for a "45 gram" serving...

I don't have a food scale...

Does anyone know an approximate serving size of porridge oats, in terms of cups, pints, milliliters, fluid ounces, etc? I'm thinking 45 grams is about half a cup?

I've done some Google'ing, but I'm stuck. Thanks for the help!

 

[theGOOCH]

40 grams is a half cup for Quaker"old fashioned" or quick oats so I'd guess its about the same..1/2 cup....and go to Target and buy a $20 food scale

 

[underPAR]

^
Thanks! Unfortunately I'm in the UK (on an internship) and there are no Targets... And I don't have a vehicle to find a place that's similar, so for a while I'm stuck with what I have.