Gold Coins, Bullion Coins, Jewelry and Silversmithing Supplies
Click Category to Navigate Site
Weight Tables

Reference Tables

Brown & Sharpe (B & S Gauge)
Helpful Facts
Avoirdupois Weight System
Avoirdupois is a weight system, utilized by the United States and England, for measuring commodities except precious metals, precious stones and medicines. The unit weight is the pound and is equivalent to 16 ounces.

Troy Weight System
Troy weight is a system of measurement for precious metals, precious stones etc. where a pound is equivalent to 12 ounces. The name "Troy" is derived from Troyes, France, the city where the system was first used.


1 oz avoirdupois = 437.500 grains
28.3495 grams
0.91146 ounces troy
0.06250 pounds avoirdupois
0.02835 kilograms

1 pound avoirdupois = 453.592 grams
16 ounces avoirdupois
14.5833 ounces troy
0.4536 kilograms
1.21528 pounds troy
1 oz troy = 480 grains
31.1035 grams
1.0971 ounces avoirdupois
20 pennyweights
0.08333 pounds troy
0.06857 pounds avoirdupois

1 pound troy = 373.242 grams
5760 grains
12 ounces troy
0.37324 kilograms
0.82286 pounds avoirdupois
1 milligram = 0.1 centigrams
0.01543 grains
0.001 grams

1 gram = 1000 milligrams
0.001 kilograms
15.4324 grains
0.03527 ounces avoirdupois
0.03215 ounces troy

1 kilogram = 1000 grams
35.27 ounces avoirdupois
32.15 ounces troy
2.2046 pounds avoirdupois
2.6792 pounds troy
C.C. SILVER & GOLD INC.
2028 WEST CAMELBACK
PHOENIX, AZ 85015
TEL: 602.242.6310
FAX: 602.433.9522
E-MAIL:
info@ccsilver.com