"half the weight" is correct and usable in written English.
You could use it in a sentence like, "The man lifted half the weight of the suitcase without any trouble."
Koranic verse is the basis for giving a woman's testimony half the weight of a man's.
The Wagon R Stingray, the larger one at 1,760 pounds, is about half the weight of an Element.
The front transmission, with only two forward gear ratios, is the patented innovation that makes the drivetrain half the weight of a typical all-wheel-drive system.
The Constellation's case is made of polished grade 5 titanium, which is twice as strong as steel and only half the weight.
That's about half the weight of an iPhone 6.
It's almost half the weight, at under 95 grams, and compares to a very light men's wristwatch.
Their phones are half the weight, have four times the bandwidth and are all digital, while most U.S. mobile phones are still stuck in the analog age.
Bloodhound SSC will have more power than Thrust SSC, but only half the weight and less than half the drag - which is why it's so much faster.
Half the weight of Novomer's plastics comes from carbon dioxide, which is essentially free.
At.68 pounds, it's about half the weight of the fourth generation iPad.
Also starting with Endubis these coins were 2.11-2.5 grams in weight which is half the weight of a Roman antoninianus of 3.5-4.5 3.5-4.5
