Translation of "Inches" in Chinese

I'm three inches taller than you.

我比你高三英寸。

He's three inches taller than I am.

他比我高三英寸。

He is two inches taller than I am.

他比我高两寸。

The weather report says we'll get three inches of snow.

天气预报说会下三英寸雪。

You have a tray that's 14-by-18 inches and you feel you need to load it up with food.

你有个14×18英寸的餐盘， 你就会很想装满食物