Weights and Measures Conversion Chart
Printable chart to convert weights and measures including Carats, Grams, Kilograms, Ounces, Pounds and Troy Ounces Pounds and Pennyweights.
By International Gem Society, updated on
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
International Gem Society
Related Articles
Birthstone Chart
What are the birthstones by month? January is garnet, February is amethyst, March is aquamarine, April is diamond, May is...
Read More
The Mohs Hardness Scale and Chart for Select Gems
The Mohs hardness scale measures a mineral's resistance to scratching. Find the traditional scale here and a chart of select...
Read More
Specific Gravity Values of Selected Gems
Measuring specific gravity helps gemologists identify gemstones. The following table lists the specific gravity values for a variety of gem...
Read More
Gemology Cheat Sheets
These gemology cheat sheets review gem color and clarity grading, specific information on evaluating diamonds and opals, and basic gem...
Read More
Latest Articles
800 Years of Mogok: A Celebration in Tenuous Times
As Mogok, Myanmar prepares to celebrate its 800th anniversary, the inhabitants of this prolific gem producing region face an uncertain...
Read More
What is the Average Gemstone Faceting Yield?
What’s the average gemstone faceting yield from a single piece of rough? Learn how to estimate how much material you’ll...
Read More
Pyroxmangite Value, Price, and Jewelry Information
Pyroxmangite grains are rare, seldom clean enough to facet, and difficult to cut. However, when cut, they are extremely beautiful...
Read More
How to Identify Emerald Simulants and Synthetics
Gemologists can separate natural emeralds from emerald simulants and synthetics. Learn about the most common tools and techniques for this....
Read More
Never Stop Learning
When you join the IGS community, you get trusted diamond & gemstone information when you need it.
Get Gemology Insights
Get started with the International Gem Society’s free guide to gemstone identification. Join our weekly newsletter & get a free copy of the Gem ID Checklist!