Pound to Pennyweight Converter

Mass Converter

26 units available

Decimals:

From

To

291.666667

1 lb = 291.666667 dwt

Formula:

dwt = lb × 291.6666666667

With your value: 1 lb = 291.66666667 dwt

How big is that?

Everyday references on a logarithmic scale, all expressed in pound so you can sanity-check the result.

AA battery (1/19 your value)0.0529 lb

Can of soda (1/1.2 your value)0.860 lb

Your value1.00 lb

Bag of sugar (2.2× your value)2.20 lb

House cat (9.9× your value)9.92 lb

Adult human (1.5e+2× your value)154 lb

Other Pound to Pennyweight conversions

2 lb to dwt 3 lb to dwt 4 lb to dwt 5 lb to dwt 6 lb to dwt 7 lb to dwt 8 lb to dwt

Pound to Pennyweight Conversion Table

Pound (lb)	Pennyweight (dwt)
0.5	145.833333
1	291.666667
2	583.333333
5	1,458.333333
10	2,916.666667
15	4,375
20	5,833.333333
25	7,291.666667
50	14,583.333333
100	29,166.666667
250	72,916.666667
500	145,833.333333
1000	291,666.666667

Pennyweight to Pound Conversion Table

Pennyweight (dwt)	Pound (lb)
0.5	0.001714
1	0.003429
2	0.006857
5	0.017143
10	0.034286
15	0.051429
20	0.068571
25	0.085714
50	0.171429
100	0.342857
250	0.857143
500	1.714286
1000	3.428571

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Pound (lb)

Mass

Exact conversion

1 avoirdupois pound = 0.453 592 37 kg exactly (1959 international agreement).

Source: International Yard and Pound Agreement of 1959; NIST Federal Register Notice 59-5442

US, UK, Canada, Australia, New Zealand, South Africa · Reviewed 2026-07-01

Pennyweight (dwt)

Mass

Exact conversion

Traceable to the kilogram, defined by fixing the Planck constant at 6.626 070 15 × 10⁻³⁴ J·s. Avoirdupois masses derive from the 1959 international pound (0.453 592 37 kg exactly).

Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)

Bureau International des Poids et Mesures · Reviewed 2026-07-01

How to Convert Pound to Pennyweight

To convert from Pound (lb) to Pennyweight (dwt), multiply the value by 291.6666666667.

Formula: dwt = lb × 291.6666666667

Reverse: lb = dwt × 0.0034285714

Step-by-Step Example

Start with your value in Pound. For example: 5 lb
Multiply by the conversion factor: 5 x 291.6666666667
The result is: 1,458.333333 dwt

About Pound

The pound (lb) is an imperial unit of mass equal to exactly 0.45359237 kilograms. It is the primary unit of weight in the United States.

Fun Fact: The abbreviation "lb" comes from the Latin "libra pondo" meaning "a pound by weight."

Common uses: body weight (US), food packaging, shipping.

About Pennyweight

The pennyweight (dwt) equals 1/20 of a troy ounce, about 1.555 grams. Jewellers still price scrap gold by the pennyweight.

Common uses: jewellery trade, gold scrap, assaying.

Frequently Asked Questions

How many Pennyweight are in 1 Pound?

There are exactly 291.6666666667 Pennyweight in 1 Pound. This means the conversion factor from Pound to Pennyweight is 291.6666666667.

What is the formula to convert Pound to Pennyweight?

The formula to convert Pound to Pennyweight is: dwt = lb × 291.6666666667. For example, to convert 10 Pound to Pennyweight, you would multiply 10 by 291.6666666667.

What is a Pound?