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Pennyweight to Gram Converter

Enter the value that you want to convert pennyweight (pwt) to gram (g) or gram to pennyweight.Also written as PWT to G conversion.

1 pennyweight = 1.5551738 gram

Formula: gram = pennyweight value × 1.5551738

PWT to G — pennyweight to gram

pwt
15.55174g

10 pennyweight = 15.55174 gram

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Pennyweight to Gram: The Essentials

The Pennyweight Explained

Pennyweight (pwt) is a unit of weight measurement. 1 pennyweight is equal to 1.5551738 gram.

Understanding the Gram

Gram (g) is a unit of weight measurement. 1 gram is equal to 0.6430149 pennyweight.

Understanding Weight Conversions

Weight unit conversions are among the most frequently performed in daily life. International commerce ships in metric tonnes and kilograms, while US domestic logistics uses pounds and ounces. Recipes from different countries use different systems — a European cake recipe in grams versus an American one in cups and ounces. Pharmacists convert between milligrams and grains for medication dosing. Athletes track body weight across metric and imperial systems depending on their country and sport federation requirements.

pennyweight to gram metric conversion table

0.01 pwt=0.01555 g
0.1 pwt=0.15552 g
1 pwt=1.55517 g
2 pwt=3.11035 g
3 pwt=4.66552 g
4 pwt=6.22070 g
5 pwt=7.77587 g
6 pwt=9.33104 g
7 pwt=10.88622 g
8 pwt=12.44139 g
9 pwt=13.99656 g
10 pwt=15.55174 g
11 pwt=17.10691 g
12 pwt=18.66209 g
13 pwt=20.21726 g
14 pwt=21.77243 g
15 pwt=23.32761 g
16 pwt=24.88278 g
17 pwt=26.43796 g
18 pwt=27.99313 g
19 pwt=29.54830 g
20 pwt=31.10348 g
30 pwt=46.65522 g
40 pwt=62.20695 g
50 pwt=77.75869 g
60 pwt=93.31043 g
70 pwt=108.86217 g
80 pwt=124.41391 g
90 pwt=139.96565 g
100 pwt=155.51738 g
200 pwt=311.03477 g
300 pwt=466.55215 g
400 pwt=622.06954 g
500 pwt=777.58692 g
600 pwt=933.10430 g
700 pwt=1088.62169 g
800 pwt=1244.13907 g
900 pwt=1399.65646 g
1000 pwt=1555.17384 g

How to Convert PWT to G (Pennyweight to Gram)?

We can convert pennyweight to gram by using an example.

Example:

Convert 20 Pennyweight to Gram?

We know 1 Pennyweight = 1.5551738 gram; 1 Gram = 0.6430149 pennyweight.

20 pennyweight = ___g

20 × 1.5551738 = 31.10348 g (we know 1 pennyweight = 1.5551738 gram)

Answer:

20 pennyweight = 31.10348 gram

How to Convert Pennyweight to Grams (Step-by-Step)

One pennyweight (dwt) equals 1.55517 grams. This is the most common pennyweight conversion in practice because grams are the standard metric unit used alongside pennyweight in jewelry shops and precious metals markets worldwide.

  1. Identify the mass in pennyweight (dwt) you want to convert.
  2. Multiply by 1.55517 to get the value in grams.
  3. For a quick estimate: 1 dwt ≈ 1.56 g (round up slightly).
  4. Verify: 20 dwt should equal 31.1 g (1 troy ounce).
💡 Tip: Quick reference: 1 dwt ≈ 1.56 g. For mental math at a gold counter, multiply pennyweight by 1.5 and add 4% — close enough for price estimation.

Common Pennyweight to Gram Conversions

Reference values for jewelry professionals, gold buyers, and precious metals dealers.

PennyweightGram
1 dwt1.555 g
2 dwt3.110 g
3 dwt4.666 g
5 dwt7.776 g
10 dwt15.552 g
20 dwt31.103 g
50 dwt77.759 g

Solved Examples: Pennyweight to Grams

Question 1: A gold engagement ring weighs 4.2 dwt. What is its weight in grams?

Solution:

Mass in grams = 4.2 × 1.55517

= 6.532 g

Answer: 4.2 dwt = 6.53 grams of gold.

Question 2: A customer brings 35 dwt of scrap gold. How many grams for pricing?

Solution:

Mass in grams = 35 × 1.55517

= 54.43 g

Answer: 35 dwt = 54.43 grams (about 1.75 troy ounces of scrap gold).

Question 3: A silver coin weighs 12.5 dwt. Express in grams.

Solution:

Mass in grams = 12.5 × 1.55517

= 19.44 g

Answer: 12.5 dwt = 19.44 grams (typical weight of a historical half-dollar).

Question 4: Convert 0.8 dwt (a small gemstone setting) to grams.

Solution:

Mass in grams = 0.8 × 1.55517

= 1.244 g

Answer: 0.8 dwt = 1.24 grams.

Practice Questions: Pennyweight to Grams

Try solving these on your own to test your understanding:

  1. Convert 6 pennyweight to grams. (Answer: 9.331 g)
  2. A necklace weighs 18 dwt. How many grams? (Answer: 27.993 g)
  3. Express 2.5 dwt in grams. (Answer: 3.888 g)
  4. A gold nugget is 7.3 dwt. Convert to grams. (Answer: 11.353 g)
  5. How many pennyweight is 50 grams? (Answer: 32.15 dwt)

Gold Buying: dwt vs Grams — Know the Difference

Some gold buyers exploit the dwt/gram confusion. If gold is worth $60/gram and a buyer offers "$40 per pennyweight," that sounds reasonable — but $40/dwt ÷ 1.555 g/dwt = only $25.72/gram, less than half the gold value. Ethical buyers clearly state their unit and offer competitive rates. Always ask for the price per gram to compare offers from different buyers who may use different units.

Jewelry Manufacturing Standards

In US jewelry manufacturing, design specs often use pennyweight while international suppliers quote in grams. A designer specifying a "5 dwt 14K gold chain" is requesting 7.78 g of 14K gold (which contains 7.78 × 0.585 = 4.55 g of pure gold). Converting between dwt and grams is a daily calculation for production jewelers sourcing materials internationally.

Key Takeaways

  • 1 pennyweight = 1.55517 grams.
  • 20 dwt = 31.103 g = 1 troy ounce.
  • Essential conversion for gold/silver buying and jewelry manufacturing.
  • Beware of price confusion: always compare offers in the same unit ($/g).
  • A typical gold ring weighs 3-6 dwt (4.7-9.3 grams).
  • Quick estimate: dwt × 1.56 ≈ grams.

Pennyweight to Gram Conversion Formula

gram = pennyweight × 1.5551738

1 pennyweight = 1.5551738 gram

1 gram = 0.6430149 pennyweight

Reverse: pennyweight = gram × 0.6430149

Frequently Asked Questions

How many gram are in 1 pennyweight?

There are 1.5551738 gram in 1 pennyweight. To convert pennyweight to gram, multiply the value by 1.5551738.

How do I convert pennyweight to gram?

Multiply your pennyweight value by 1.5551738 to get the equivalent in gram. For example, 5 pennyweight = 5 × 1.5551738 = 7.77587 gram.

How do I convert gram to pennyweight?

Multiply your gram value by 0.6430149 to get the equivalent in pennyweight. Alternatively, divide by 1.5551738.

What is 10 pennyweight in gram?

10 pennyweight is equal to 15.55174 gram.

What is 100 pennyweight in gram?

100 pennyweight is equal to 155.51738 gram.