Scale Of Comparison

lb oz. dr. sc. gr.

1 = 12 = 96 == 288 = 5760

1 = 8 = 24 = 480

1 = 3 = 60

Troy Weight

24 grains (gr.) make 1 pennyweight................dwt.

20 pennyweights make 1 ounce...................oz.

12 ounces make 1 pound .................lb.

3 1/2. grains make 1 carat (diamond weight)............k.

Scale Of Comparison

lb oz. dwt. gr.

I = 12 = 240 = 5760

I = 20 = 480

Ik. = 3A

Avoirdupois Weight

16 drachms (dr.) make I ounce................. oz.

16 ounces make 1 pound ................ lb.

25 pounds make 1 quarter ................ qr.

4 quarters make 1 hundredweight............. cwt.

20 hundredweight make 1 ton................... T.

100 pounds make 1 central................. C.