I just listed common US ones and then some that I remember or at least think I remember being asked from math destroyer. If you're not american I can understand.
But I believe I listed most of the common ones except the following.
12 inches = 1 foot.
and 1760 yards = 1 mile
If I miss something someone should add it. they are just something I know. Math destroyer, dat destroyer, and even kaplan doesn't bother listing them out. they kinda assume people would just know it.