Pennyweight to Kilogram Converter
Enter the value that you want to convert pennyweight (pwt) to kilogram (kg) or kilogram to pennyweight.Also written as PWT to KG conversion.
1 pennyweight = 0.0015552 kilogram
Formula: kilogram = pennyweight value × 0.0015552
PWT to KG — pennyweight to kilogram
10 pennyweight = 0.01555 kilogram
Popular Weight Converters:
How Pennyweight Relates to Kilogram
The Pennyweight Explained
Pennyweight (pwt) is a unit of weight measurement. 1 pennyweight is equal to 0.0015552 kilogram.
The Kilogram Explained
Kilogram (kg) is a unit of weight measurement. 1 kilogram is equal to 643.0149314 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 kilogram metric conversion table
| 0.01 pwt | = | 0.00002 kg |
| 0.1 pwt | = | 0.00016 kg |
| 1 pwt | = | 0.00156 kg |
| 2 pwt | = | 0.00311 kg |
| 3 pwt | = | 0.00467 kg |
| 4 pwt | = | 0.00622 kg |
| 5 pwt | = | 0.00778 kg |
| 6 pwt | = | 0.00933 kg |
| 7 pwt | = | 0.01089 kg |
| 8 pwt | = | 0.01244 kg |
| 9 pwt | = | 0.01400 kg |
| 10 pwt | = | 0.01555 kg |
| 11 pwt | = | 0.01711 kg |
| 12 pwt | = | 0.01866 kg |
| 13 pwt | = | 0.02022 kg |
| 14 pwt | = | 0.02177 kg |
| 15 pwt | = | 0.02333 kg |
| 16 pwt | = | 0.02488 kg |
| 17 pwt | = | 0.02644 kg |
| 18 pwt | = | 0.02799 kg |
| 19 pwt | = | 0.02955 kg |
| 20 pwt | = | 0.03110 kg |
| 30 pwt | = | 0.04666 kg |
| 40 pwt | = | 0.06221 kg |
| 50 pwt | = | 0.07776 kg |
| 60 pwt | = | 0.09331 kg |
| 70 pwt | = | 0.10886 kg |
| 80 pwt | = | 0.12441 kg |
| 90 pwt | = | 0.13997 kg |
| 100 pwt | = | 0.15552 kg |
| 200 pwt | = | 0.31103 kg |
| 300 pwt | = | 0.46655 kg |
| 400 pwt | = | 0.62207 kg |
| 500 pwt | = | 0.77759 kg |
| 600 pwt | = | 0.93310 kg |
| 700 pwt | = | 1.08862 kg |
| 800 pwt | = | 1.24414 kg |
| 900 pwt | = | 1.39966 kg |
| 1000 pwt | = | 1.55517 kg |
How to Convert PWT to KG (Pennyweight to Kilogram)?
We can convert pennyweight to kilogram by using an example.
Example:
Convert 20 Pennyweight to Kilogram?
We know 1 Pennyweight = 0.0015552 kilogram; 1 Kilogram = 643.0149314 pennyweight.
20 pennyweight = ___kg
20 × 0.0015552 = 0.03110 kg (we know 1 pennyweight = 0.0015552 kilogram)
Answer:
20 pennyweight = 0.03110 kilogram
How to Convert Pennyweight to Kilograms (Step-by-Step)
One pennyweight (dwt or pwt) equals 0.00155517 kg (1.55517 grams). The pennyweight is a troy weight unit used primarily in the gold and silver trade, jewelry industry, and precious metals markets. 20 pennyweight = 1 troy ounce.
- Identify the mass in pennyweight (dwt/pwt) you want to convert.
- Multiply by 0.00155517 to get the value in kilograms.
- Alternatively: divide pennyweight by 20 to get troy ounces, then multiply by 0.0311035 kg/troy oz.
- For larger quantities: pennyweight × 1.55517 = grams, then ÷ 1000 = kg.
Common Pennyweight to Kilogram Conversions
Reference values for precious metals trade, jewelry manufacturing, and gold buying.
| Pennyweight | Kilogram |
|---|---|
| 1 dwt | 0.001555 kg |
| 5 dwt | 0.007776 kg |
| 10 dwt | 0.01555 kg |
| 20 dwt | 0.03110 kg |
| 100 dwt | 0.15552 kg |
| 240 dwt | 0.37324 kg |
| 643 dwt | 1.00 kg |
Solved Examples: Pennyweight to Kilograms
Question 1: A gold chain weighs 15 pennyweight. What is its mass in kilograms?
Solution:
Mass in kg = 15 × 0.00155517
= 0.02333 kg
Answer: 15 dwt = 0.0233 kg (23.3 grams — a substantial gold chain).
Question 2: A jeweler purchases 200 dwt of sterling silver. How many kilograms is this?
Solution:
Mass in kg = 200 × 0.00155517
= 0.31103 kg
Answer: 200 dwt = 0.311 kg (311 grams = 10 troy ounces).
Question 3: A gold bar weighs 3,215 dwt. Express in kilograms.
Solution:
Mass in kg = 3,215 × 0.00155517
= 5.00 kg
Answer: 3,215 dwt ≈ 5.0 kg (about 160.75 troy ounces).
Practice Questions: Pennyweight to Kilograms
Try solving these on your own to test your understanding:
- Convert 8 pennyweight to kilograms. (Answer: 0.01244 kg)
- A silver bracelet weighs 25 dwt. How many kg? (Answer: 0.03888 kg)
- Express 500 dwt in kilograms. (Answer: 0.77759 kg)
- A gold ring is 3.5 dwt. Convert to kg. (Answer: 0.00544 kg)
- How many pennyweight in 0.1 kg of gold? (Answer: 64.3 dwt)
Pennyweight in the Gold and Jewelry Trade
US gold buyers, pawn shops, and jewelers commonly use pennyweight (dwt) to weigh precious metals. A typical gold wedding band weighs 3-6 dwt; a heavy gold chain 15-30 dwt. Scrap gold is often purchased by the pennyweight. Consumers should be aware that some buyers quote prices per pennyweight while others use grams — since 1 dwt = 1.555 g, a price of $50/dwt equals $32.15/g. Always clarify the unit when selling gold.
Etymology and History of the Pennyweight
The pennyweight originated as the weight of a medieval English silver penny (hence "penny-weight"). In the 1200s, 240 pennies were minted from 1 tower pound of sterling silver. When the troy system standardized, the pennyweight became fixed at 24 grains = 1/20 troy ounce. The abbreviation "dwt" comes from the Latin "denarius" (penny) + "weight." Despite metrication, dwt remains standard in US jewelry manufacturing.
Key Takeaways
- 1 pennyweight (dwt) = 0.00155517 kg = 1.55517 grams.
- 20 pennyweight = 1 troy ounce = 31.1035 g.
- Primary use: gold/silver jewelry trade and precious metals buying.
- US gold buyers often price per pennyweight — compare to gram prices carefully.
- Abbreviation "dwt" comes from Latin denarius (penny) + weight.
- 1 kg ≈ 643 pennyweight.
Pennyweight to Kilogram Conversion Formula
kilogram = pennyweight × 0.0015552
1 pennyweight = 0.0015552 kilogram
1 kilogram = 643.0149314 pennyweight
Reverse: pennyweight = kilogram × 643.0149314
Frequently Asked Questions
How many kilogram are in 1 pennyweight?
There are 0.0015552 kilogram in 1 pennyweight. To convert pennyweight to kilogram, multiply the value by 0.0015552.
How do I convert pennyweight to kilogram?
Multiply your pennyweight value by 0.0015552 to get the equivalent in kilogram. For example, 5 pennyweight = 5 × 0.0015552 = 0.00778 kilogram.
How do I convert kilogram to pennyweight?
Multiply your kilogram value by 643.0149314 to get the equivalent in pennyweight. Alternatively, divide by 0.0015552.
What is 10 pennyweight in kilogram?
10 pennyweight is equal to 0.01555 kilogram.
What is 100 pennyweight in kilogram?
100 pennyweight is equal to 0.15552 kilogram.