Grains (gr)	Pennyweights (dwt)
1 gr	0.04167 dwt
2 gr	0.08333 dwt
5 gr	0.2083 dwt
10 gr	0.4167 dwt
25 gr	1.0417 dwt
50 gr	2.0833 dwt
100 gr	4.1667 dwt
250 gr	10.4167 dwt
500 gr	20.8333 dwt
1000 gr	41.6667 dwt

Convert Grains to Pennyweights

Convert grains to pennyweights (gr to dwt) with our instant calculator. 1 gr = 0.041667 dwt. Includes exact formula and reference tables.

How to Convert Grains to Pennyweights (gr to dwt)

1 Grain (gr) is equal to 0.041667 Pennyweights (dwt). Divide the grain value by 24

Quick Answer 1 gr = 0.041667 dwt

Formula dwt = gr / 24

Inverse Factor 1 dwt = 24 gr

Unit Definitions & Metrology Context

The standard SI base unit of mass is the kilogram (kg), defined in terms of the Planck constant (h = 6.62607015 × 10⁻³⁴ J⋅s).

About Grains (gr): Grain (gr) is a unit in the Weight & Mass measurement category. It is widely used in gunpowder, arrows & pharmacy. Relative to the weight & mass base unit, 1 gr equals 0.000065 Kilograms (kg).

About Pennyweights (dwt): Pennyweight (dwt) is a unit in the Weight & Mass measurement category. It is widely used in scrap gold & dental alloys (1.555 g). Relative to the weight & mass base unit, 1 dwt equals 0.001555 Kilograms (kg).

Need to convert in the opposite direction? Visit our Convert Pennyweights to Grains (dwt to gr) calculator (1 dwt = 24 gr).

Step-by-Step Worked Examples (gr to dwt)

Convert 5 Grains to Pennyweights: Applying the formula (dwt = gr / 24): starting with 5 gr, divide the grain value by 24 to get 0.2083 dwt.
Convert 10 Grains to Pennyweights: Applying the formula (dwt = gr / 24): starting with 10 gr, divide the grain value by 24 to get 0.4167 dwt.
Convert 50 Grains to Pennyweights: Applying the formula (dwt = gr / 24): starting with 50 gr, divide the grain value by 24 to get 2.0833 dwt.

Popular Weight & Mass Conversions

Pound ⇄ Kilogram

1 avoirdupois pound is legally defined as exactly 0.45359237 kilograms.

Ounce ⇄ Gram

1 ounce is approximately 28.3495 grams (1/16 of a pound).

Stone ⇄ Pound

1 British stone is exactly equal to 14 pounds (approx. 6.35029 kg).

Kilogram ⇄ Gram

1 kilogram equals exactly 1,000 grams.

Frequently Asked Questions

Verified answers and formulas for converting grains to pennyweights.

How many pennyweights are in 1 grain?

There are 0.041667 pennyweights (dwt) in 1 grain (gr). Conversely, 1 pennyweight equals 24 grains.

How do you convert grains to pennyweights?

To convert grains (gr) to pennyweights (dwt), use the formula: dwt = gr / 24. Divide the grain value by 24. For example, 10 gr equals 0.4167 dwt.

How do I convert back from pennyweights to grains?

To convert in the reverse direction from pennyweights (dwt) to grains (gr), use the inverse formula: gr = dwt × 24. Multiply the pennyweight value by 24 (1 dwt = 24 gr).

What is the difference between grain (gr) and pennyweight (dwt)?

Both grain and pennyweight measure weight & mass. Grain (gr) is a unit in the Weight & Mass measurement category. It is widely used in gunpowder, arrows & pharmacy. Relative to the weight & mass base unit, 1 gr equals 0.000065 Kilograms (kg). Pennyweight (dwt) is a unit in the Weight & Mass measurement category. It is widely used in scrap gold & dental alloys (1.555 g). Relative to the weight & mass base unit, 1 dwt equals 0.001555 Kilograms (kg).

How many pounds are in 1 kilogram?

1 kilogram equals approximately 2.20462 pounds. A quick mental trick is to multiply kilograms by 2.2.