Aisha K.
Mar 12, 2026
Clean layout and the results update instantly. Exactly what I needed for a quick planning check.
Unit Converters
Pennyweights to Grams Converter
grams = pennyweights × 1.55517384. 20 dwt = 1 troy oz.
Pawn shops and gold buyers still quote pennyweights (dwt). 20 dwt make a troy ounce. One dwt is 1.555 g. If someone prices scrap in dwt and you think in grams, convert before you nod.
Pennyweights
dwt → g
31.1035 g
5 dwt of gold ≈ 7.78 g. 20 dwt = 31.10 g (a troy ounce).
- You typed
- 20 dwt
- One g is
- 0.643 dwt
- How it’s calculated
- grams = pennyweights × 1.55517384. 20 dwt = 1 troy oz.
Plain-English guide
Terms & how it works
Confused by a field? Read the short definitions here while you use the tool.
Pennyweights
The “Pennyweights” value used in this tool’s formula. Adjust it to see results update live.
How this calculator works
Pawn shops and gold buyers still quote pennyweights (dwt). 20 dwt make a troy ounce. One dwt is 1.555 g. If someone prices scrap in dwt and you think in grams, convert before you nod. grams = pennyweights × 1.55517384. 20 dwt = 1 troy oz. Example: 5 dwt of gold ≈ 7.78 g. 20 dwt = 31.10 g (a troy ounce).
grams = pennyweights × 1.55517384. 20 dwt = 1 troy oz.
Example: 5 dwt of gold ≈ 7.78 g. 20 dwt = 31.10 g (a troy ounce).
When to use this Pennyweights to Grams
Common use cases
- Pawn shops and gold buyers still quote pennyweights (dwt). 20 dwt make a troy ounce. One dwt is 1.555 g. If someone prices scrap in dwt and you think in grams, convert before you nod.
- Sanity-check with this case: 5 dwt of gold ≈ 7.78 g. 20 dwt = 31.10 g (a troy ounce).
- The relationship is: grams = pennyweights × 1.55517384. 20 dwt = 1 troy oz.
Localized examples
- Unit Converters: the example on this page uses the same formula as the widget.
What you get
- Fields: Pennyweights
- grams = pennyweights × 1.55517384. 20 dwt = 1 troy oz.
- Example on the page: 5 dwt of gold ≈ 7.78 g. 20 dwt = 31.10 g (a troy ounce).
How to Convert Pennyweights to Grams Step-by-Step
- 1Enter Pennyweights. Use the values you have, not a catalog average, unless that is all you know.
- 2grams = pennyweights × 1.55517384. 20 dwt = 1 troy oz.
- 3Worked case: 5 dwt of gold ≈ 7.78 g. 20 dwt = 31.10 g (a troy ounce).
- 4Check which dictionary the other person is using — US or UK, decimal or 1,024 — then trust the number.
Governing formula
grams = pennyweights × 1.55517384. 20 dwt = 1 troy oz.
5 dwt of gold ≈ 7.78 g. 20 dwt = 31.10 g (a troy ounce).
Example: set Pennyweights = 20, then read the result.
Variable definitions
- value
Pennyweights
The “Pennyweights” field. Default 20; typical range 0–10000.
- The conversion (grams = pennyweights × 1.55517384. 20 dwt = 1 troy oz.) does not pick US vs UK gallons, SI vs binary megabytes, or Mach at altitude for you. Read the footnote on the page.
- Nothing here is uploaded for the calculation itself.
Frequently Asked Questions
Pennyweight comes from the weight of a medieval penny. Jewelers kept it.
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Unit Converters
- Atomic Mass Units to GramsDaltons (u) are how chemists weigh atoms. Carbon-12 is defined as 12 u. The gram is 6.022 × 10²³ of those, which is why a mole of carbon is 12 g. This page is for lab sheets, not grocery bags.
- Brown Sugar Cups to GramsPacked light or dark brown sugar is about 220 g per US cup. “Packed” means you pressed it. A loose scoop can miss 30 g and flatten cookies. Light and dark weigh nearly the same; molasses is the flavor, not the scale.
- Butter Sticks to GramsA US stick is ½ cup, 8 tablespoons, 4 oz, 113 g. European blocks are often 250 g. If a UK recipe says “8 oz butter,” that is two US sticks, not a European brick.
- Carats to GramsA metric carat is 0.2 g, defined in 1907 so jewelers would stop arguing. A 1 ct diamond is 0.2 g — the size you see is cut, not this mass. Gold “karat” (purity) is a different word on purpose.
- Carats to MilligramsThe metric carat is exactly 200 mg (0.2 g) since 1907. A 1 ct diamond is 200 mg. Jewelers still cut “points” (0.01 ct = 2 mg). This is not a gold-karat purity scale.
- Cocoa Powder Cups to GramsUnsweetened cocoa powder is fluffy. A US cup is about 85 g sifted/spooned. Dutch-process vs natural does not change the gram target as much as how hard you tap the cup.
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Reviews & Ratings
See what others think about this tool, then leave your own rating to help improve CalculioHub.
4.8
out of 5.0
4 reviews
Daniel R.
Feb 28, 2026
Very usable on mobile. Would love a save/export option later, but the math feels solid.
Priya S.
Feb 3, 2026
The FAQ section answered my questions before I even had to search. Smooth dark mode too.
Marcus L.
Jan 19, 2026
Simple inputs, clear outputs. This replaced three bookmarks I used to juggle.
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