Convert pennyweights to grams for jewelry, gold, silver, and precious metals. Accurate calculator with industry-standard conversion factor of 1.55517384 grams per pennyweight.
1 pennyweight equals 1.5551736740200461 gram
Formula: g = dwt × 1.55517
Pennyweight, abbreviated as dwt, remains the standard unit for weighing precious metals and gemstones in the jewelry industry. One pennyweight equals exactly 1.55517384 grams, making precise conversion essential for jewelers, collectors, and traders worldwide. Understanding this conversion is critical for accurate pricing, inventory management, and international transactions in the precious metals market.
In precious metals trading, a single pennyweight error can cost hundreds of dollars. Gold trades at approximately $60 per gram, meaning just 0.1 pennyweight miscalculation represents a $9.33 loss. Jewelers must maintain precise measurements for customer trust, regulatory compliance, and accurate invoicing. The metric system dominates international commerce, yet pennyweights remain standard in North America's jewelry industry, making conversion accuracy non-negotiable.
Jewelers use pennyweights for weighing gold, silver, platinum, and gemstones during design, production, and quality control. American and Canadian jewelers primarily work in pennyweights, while European counterparts use grams. This creates constant conversion needs when sourcing materials internationally, calculating production costs, and communicating specifications across borders. Precision affects both profitability and customer satisfaction.
Bullion dealers, coin graders, and precious metals traders work with pennyweights extensively, particularly in North America. Coin weight standards, gold bar specifications, and market quotations often reference pennyweights. Traders must convert between pennyweights and grams when dealing with international buyers, managing inventory systems, and calculating metal content percentages. Accuracy directly impacts profit margins on high-volume transactions.
| pennyweights | grams |
|---|---|
| 1 dwt | 1.555174 g |
| 10 dwt | 15.551737 g |
| 25 dwt | 38.879342 g |
| 50 dwt | 77.758684 g |
| 100 dwt | 155.517367 g |
Formula: g = dwt × conversion factor
The pennyweight is a widely used unit for measuring weight. It is commonly used in various applications and industries worldwide.
The gram is a widely used unit for measuring weight. It is commonly used in various applications and industries worldwide.
This pennyweight to gram converter uses high-precision conversion factors to ensure accurate results for professional and academic use.
Our calculator provides results with up to 10 decimal places for maximum accuracy.
One pennyweight of gold equals exactly 1.55517384 grams. This precise conversion is critical in precious metals trading. For practical purposes, jewelers often use 1.5552 grams for quick calculations. At current gold prices of approximately $60 per gram, one pennyweight of gold is worth roughly $93.33. This conversion applies to all precious metals and gemstones, not just gold—the pennyweight is a unit of mass, not specific to any metal.
Pennyweights remain standard in North American jewelry due to historical tradition, established industry infrastructure, and regulatory precedent. Professional certifications, pricing guides, and supplier networks all use pennyweights. Additionally, the troy weight system (20 pennyweights per troy ounce) aligns perfectly with precious metals markets, which quote prices in troy ounces globally. Switching to metric would require retraining, system updates, and disruption to established business practices. Younger jewelers increasingly use grams, but the transition remains incomplete.
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