Troy Weight Conversion Calculator
Professional precious metals weight converter for gold, silver and platinum
Convert between troy weight units (troy ounces, pennyweights, grains) and standard weight units (grams, pounds, kilograms). Essential tool for jewelry makers, precious metals traders, coin collectors, and anyone working with gold, silver, or platinum.
Weight Input
Conversion Results
Enter Values to Calculate
Your conversion results will appear here
Example: 1.5 troy ounces = 46.655 grams
Quick Reference
1 Troy Ounce =
- 31.1035 grams
- 20 pennyweights
- 480 grains
1 Pennyweight =
- 1.555 grams
- 24 grains
- 0.05 troy ounces
When to Use Troy Weight Conversion Calculator
Precious Metals Trading
Convert troy ounces to grams when buying or selling gold, silver, platinum, and other precious metals. Essential for accurate pricing and transactions.
Jewelry Making
Calculate precise weights for jewelry components, convert pennyweights to grams for material planning, and determine exact precious metal content in custom pieces.
Coin Collecting
Determine the precious metal content of coins, convert between troy ounces and grams for bullion coins, and calculate melt values for numismatic collections.
Investment Analysis
Convert precious metals investments between different weight units, calculate portfolio values, and compare prices across different measurement systems.
Scientific Research
Convert between troy and metric units for laboratory work involving precious metals, catalyst research, and materials science applications requiring precise measurements.
Educational Purposes
Learn about troy weight system, understand the difference between troy and avoirdupois weights, and practice conversions for academic or professional development.
Frequently Asked Questions
What is a Troy Weight Conversion Calculator?
A troy weight conversion calculator is a specialized tool for converting between troy weight units used for precious metals (troy ounces, pennyweights, grains) and standard weight units (grams, pounds, kilograms). It's essential for jewelry making, precious metals trading, and coin collecting.
What is the difference between troy ounce and regular ounce?
A troy ounce weighs 31.1035 grams, while a regular (avoirdupois) ounce weighs 28.3495 grams. Troy ounces are about 10% heavier and are the standard unit for measuring precious metals like gold, silver, and platinum.
How many grains are in a troy ounce?
There are 480 grains in one troy ounce. This is different from the avoirdupois system where there are 437.5 grains in a regular ounce. Grains are the smallest unit in the troy weight system.
What is a pennyweight in troy weight?
A pennyweight (dwt) is a troy weight unit equal to 1/20 of a troy ounce or 24 grains. It weighs approximately 1.555 grams and is commonly used in jewelry making and precious metals trading.
Is this troy weight calculator accurate for precious metals?
Yes, our calculator uses precise conversion factors based on international standards. It provides accurate conversions for all troy weight units and is suitable for professional use in jewelry, precious metals trading, and coin collecting.
Can I convert troy weights to metric units?
Absolutely! Our calculator converts between troy weight units (troy ounces, pennyweights, grains) and metric units (grams, kilograms) as well as imperial units (pounds, ounces). All conversions are bidirectional and instant.
Why do precious metals use troy weight instead of regular weight?
Troy weight has been the traditional system for precious metals since medieval times, originating from the French market town of Troyes. It provides more precise measurements for valuable materials and remains the international standard for gold, silver, platinum, and other precious metals.
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