Use these formulas to convert!

Carats to Dwt x by .12860
Carats to Grams x by .2
Dwt to Carats x by 7.776
Dwt to Grams x by 1.5552
Dwt to Troy oz x by .05
Grams to Carats x by 5.0
Grams to Dwt x by .64301

 Grains:

1 grain = 64.8 milligrams
1 grain = 0.0648 grams
4 grains = 1 carat

15. 432 grains = 1 gram

20 grains = 1 scruple
24 grains =1 pennyweight
480 grains = 1 troy ounce
5760 grains = 1 troy pound

Grams:

1 gram =.03215 troy ounce
1 gram =.643 pennyweight

1. 555 grams = 1 pennyweight (dwt)

1 gram =0.00267923 apothecary or troy pound

Pennyweight:

1 pennyweight = 24 grains (dwt)

1. 55 grams=1 pennyweight (dwt)

20 dwt=1 troy ounce
240 pennyweights = 1 pound troy
24 grains=1 dwt
1 pennyweight =.05 troy ounce
1 gram=.643 pennyweigh

Troy:

1 troy ounce = 480 grains
1 troy ounce = 24 scruples
1 troy ounce = 20 pennyweights
1 troy ounce = 1.097 ordinary ounce
1 troy ounce = 8 drams
1 troy ounce = 31.1034768 grams.
1 troy ounce = 120 carats
12 troy ounce=1 troy pound

Conversion Formulas