⚖️ Grams to Pennyweights Converter

5.0 out of 5 (1 rating)

Enter details

1 gram =
0.643015 pennyweights
1 pennyweight =
1.55517 grams
Formula
dwt = g × 0.643015
Handy values
5 g = 3.21507 dwt · 10 g = 6.43015 dwt · 100 g = 64.3015 dwt

Rate this calculator

Was it useful? A quick star rating helps others — and you can leave a comment too.
Rate it: ★ ★ ★ ★ ★

⚡ Grams to Pennyweights: the quick answer

1 g = 0.643015 dwt 1 gram equals 0.643015 pennyweights

To convert grams to pennyweights, multiply the value by 0.643015. To go the other way, multiply pennyweights by 1.55517 to get grams.

↔ Convert pennyweights to grams instead

🧮 Formula

Grams to Pennyweights
dwt = g × 0.643015
Pennyweights to Grams
g = dwt × 1.55517

Where

  • g = the weight in grams
  • dwt = the weight in pennyweights
Every unit here is defined by its weight in kilograms, so the conversion factor is (kilograms per gram) ÷ (kilograms per pennyweight).

📊 Grams to Pennyweights conversion table

Grams (g)Pennyweights (dwt)
1 g0.643015 dwt
2 g1.28603 dwt
3 g1.92904 dwt
4 g2.57206 dwt
5 g3.21507 dwt
6 g3.85809 dwt
7 g4.5011 dwt
8 g5.14412 dwt
9 g5.78713 dwt
10 g6.43015 dwt
12 g7.71618 dwt
14 g9.00221 dwt
15 g9.64522 dwt
20 g12.8603 dwt
21 g13.5033 dwt
24 g15.4324 dwt
25 g16.0754 dwt
30 g19.2904 dwt
40 g25.7206 dwt
50 g32.1507 dwt
60 g38.5809 dwt
75 g48.2261 dwt
80 g51.4412 dwt
100 g64.3015 dwt
200 g128.603 dwt
250 g160.754 dwt
300 g192.904 dwt
400 g257.206 dwt
500 g321.507 dwt
750 g482.261 dwt
1,000 g643.015 dwt

📘 About these units

Gram (g). The gram is one thousandth of a kilogram, the everyday unit for food, gold and small items.

Pennyweight (dwt). A pennyweight is 1/20 of a troy ounce (1.555 g), used by jewellers.

❓ Frequently asked questions

How many pennyweights are in one gram?

There are 0.643015 pennyweights in one gram.

How do I convert grams to pennyweights?

Multiply the number of grams by 0.643015. For example, 10 grams equal 6.43015 pennyweights.

How many grams are in one pennyweight?

One pennyweight equals 1.55517 grams.

How many pennyweights is 12 grams?

7.71618 pennyweights. Other common values: 5 grams = 3.21507 pennyweights and 100 grams = 64.3015 pennyweights.

What people are saying
★★★★★
Anonymous · 22 Oct 2026