|
MEASURES OF WEIGHT (AVOIRDUPOIS) |
| 1 grain |
= |
0.0648 grams |
| 27 11/32 grains |
= |
1 dram (dr) OR 1.7718 |
| 16 drams |
= |
437.5 grains OR 1 ounce (oz.) OR 28.35 grams |
| 16 ounces |
= |
7000 grains OR 1 pound (lb) OR 256 drams OR
453.5237 grams OR .45 kilograms |
| 100 pounds |
= |
1 central OR 1 hundredweight (cwt) OR 45.36
kilograms |
| 2000 pounds |
= |
1 short ton OR 20 hundredweights OR 907.18
kilograms OR .91 metric ton |
| 2240 pounds |
= |
1 long ton |
|
. |
|
TROY PRECIOUS METALS |
| 24 grains |
= |
1 pennyweight (dwt) |
| 20 pennyweights |
= |
480 grains OR 1 ounce (oz.t.) OR 31.10 grams |
| 12 ounces |
= |
5760 grains OR 1 pound (lb.t.) OR 373.24 grams |
|
. |
|
APOTHECARIES' WEIGHT - used for dry medicines |
| 20 grains |
= |
1 scruple |
| 3 scruples |
= |
dram |
| 8 drams |
= |
480 grains OR 1 ounce OR 31.10 grams |
| 12 ounces |
= |
5760 grains OR 1 pound OR 96 drams OR 288
scruples OR 373.24 grams |
|
. |
|
APOTHECARIES' WEIGHT - square measure U.S. |
| 1 square inch |
= |
6.4516 square centimeters |
| 144 square inches |
= |
1 square foot (sq. ft.) OR 0.0929 m2 (meter squared) |
| 9 square feet |
= |
1 square yard (sq.yd.) OR .08361 m2 |
| 30 1/4 square yards |
= |
1 square rod (sq. rd.) OR 25.2930 m2 |
| 160 square rods |
= |
1 acre (A.) OR 0.4047 hectares |
| 640 acres |
= |
1 square mile (sq. mi.) OR 258.9998 hectares |
|
. |
|
NOTE: The "GRAIN" is the same in avoirdupois, troy and apothecaries weight |
