1″ = 25.4 mm 1 mm = .039″

 

  Carats Grams Kilograms Ounces
Avoirdupois		 Pounds
Avoirdupois		 Ounces
Troy		 Pounds
Troy		 Pennyweights
Troy
Carats 1 0.2 0.0002 0.0071 0.00044 .00643 0005358 7.776
Grams 5 1 0.001 0.0353 0.0022 .03215 .002679 1.555
Kilograms 5,000 1,000 1 353 2.2 32.15 2.679 0.001555
Ounces
Avoirdupois		 141.75 28.3 .0028300 1 0.0625 .9115 .07595 0.05486
Pounds
Avoirdupois		 2,267.95 453.59 0.4545455 16 1 14.58 1.215 0.003429
Ounces
Troy		 155.5 31.1 0.0311 1.097 0.06857 1 .08333 0.05
Pounds
Troy		 1,866 373.2 .3732 13.17 .8229 12 1 0.004167
Pennyweights
Troy		 7.776 1.555 .001555 .05486 .003429 .05 .004167 1

WEIGHTS & MEASURES CONVERSION CHART

Compliments ofThe International Gem Society