(Weights and Measurement Charts
- Prospector Conversion Tables)

Quick Chart

1 grain == 0.0648 gram

1 pennyweight = 1.5551 gram

1 troy ounce = 31.103 gram

24 grains = 1 pennyweight

480 grains = 1 ounce

Mohs’ Scale of Hardness

1 Talc	2 Gypsm	3 Calcite	4 Flourite	5 Apatite	6 Feldspar		7 Quartz	8 Topaz	9 Corundum	10 Diamond
Fingernail (1-2)
	Penny (2-3)
		Steel Pocketknife (3-6)
						Glass (6-7)

Any mineral that will scratch glass is a hardness of a 7 to 10 in scale Some items and there hardness (Ruby = 9) (Tiger’s Eye = 7) (Hematite = 5-6) (Amethyst =7) (Quartz = 7) (Jasper = 7) (Petrified wood = 7) (Malachite = 3.5 – 4) (Sapphire = 9) (Opal = 5.5 – 6.5) (Emerald = 7.5 – 8) (Aquamarine = 7.5 – 8) (Topaz = 8) (Turquoise=5-6) (Tourmaline = 7-7.5)

Density Comparisons

gold	silver	lead	water	iron	Copper	Aluminum
.5	.91817	.84872	9.65	1.26012	1.08354	3.65115
1	1.83635	1.69745	19.3	2.52024	2.16708	7.30231

Common Conversions

Grams	.5	1	2	3	4	5	6	7.8	15.6	31.1
DWT.	.32	.64	1.29	1.93	2.57	3.22	3.86	5.0	10	20
Troy Oz	.016	.03215	.06	.09	.12	.15	.18	.25	.5	1
Grains	7.7	15.4	30.8	46.2	61.6	77.0	92.4	120	240	480
US Oz	.01764	.03527	.07055	.10582	.1411	.17637	.21164	.27514	.55027	1.09702
Troy Pound	.00134	.00268	.00536	.00804	.01072	.0134	.01608	.0209	.0418	.08332
US Pound (lb)	.0011	.0022	.00441	.00661	.00882	.01102	.01323	.0172	.03439	.06856

Equations to one scale to another

Imperial Pound * 0.45 = kilograms	Kilogram * 2.21 = imperial pounds (lbs)	16 oz = 1 pound 2000 ozs = 1 ton 1000 grams = 1kilogram 0.001 grams = 1 miligram
GRAMS X .643 = DWT	GRAINS / 15.4 = GRAMS	DWT / 20 = OZ TROY
DWT/.643 = GRAMS	GRAMS / 31.1 = OZ TROY	OZ TROY X 20 = DWT
GRAMS X 15.4 = GRAINS	OZ TROY X 31.1 = GRAMS	GRAINS / 480 = OZ TROY
US Gallons * 0.83271 = Imperial	OZ TROY X 480 = GRAINS	Imperal Gallon * 1.2 = us gallon

Troy Ounce

1 troy ounce (Apoth)

= 1.097 US ounce

= 0.08333 troy pound

= 0.06857 US pound

= 20 pennyweight

= 480 grains

=31.10348 Grams

US Ounce

1 us ounce

= 0.9115 troy ounce

=0.07595 Troy Pound

=0.0625 US pound(lb)

=18.23 Pennyweight

=437.5 grains

=28.34952 grams

Grams

1 gram

=0.03215 Troy Ounce

=0.03527 US Ounce

=0.002679 Troy Pound

=0.002205 US Pound

=0.643 Pennyweight

=15.43 Grains

Pennyweight
(dwt)

1 pennyweight

=0.05 troy ounce

=0.05486 us ounce

=0.004167 troy pound

=0.003429 us pound

=24 grains

= 1.552 grams

Grains (gr)

1 grain

= 0.002083 Troy ounce

= 0.002286 US ounce (Avoir.)

= 0.0001736 Troy pound

= 0.0001429 US Pound

= 0.04167 Pennyweight
= 0.0648 grams

Troy Pound

1 troy pound

= 12 troy ounce

= 13.16571 us ounce

= 0.8229 US pound

= 240 pennyweight

= 5760 grain

= 373.24172 grams

US Pound

1 US pound (lb) Avior.

=14.58333 troy ounce

= 16 us ounce

= 1.21528 troy pound

= 291.66667 pennyweight

= 0.04167 grain

= 0.0648 grams

CARATS

24 Carat = 100% pure gold
24 carat = .999 fine gold

22 carat = .916 fine gold
20 carat = .835 fine gold

18 carat = 75%
18 carat = .750 fine gold

14 carat = 58%
14 carat = .585 fine gold

10 carat = 42%

9 carat = .375 fine gold

8 carat = .333 fine gold

Others

1 gallon water = 8.35 us pounds

1 gallon wet sand = 20 to 30 us pounds

1 gallon = .1337 cubic feet

4 mesh classifier = .250 inch (1/4 in.)

10 mesh classifier = .100 inch (1/10 in.)

16 mesh classifier = .0625 (1/16 in.)

20 mesh classifier = .050 inch (1/20 in.)

www.Convert-me.com & www.megaconverter.com/mega2/

Just a fyi from the webmaster: I had a miss spelled word pund instead of pound. I guess I'm not the only one that spells things wrong or am I missing something. check this link out:

results.aspx-q=convert punds to grams&FORM=MSNH

Well it turns out I was missing something. Pund is another spelling of Pound in the English currency, they tell me.