Convert Pennyweight to Poundal
Convert pennyweights to poundals instantly. 1 pennyweight = 0.1103999969 poundal — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Poundal to Pennyweight converter for the reverse conversion.
Units explained
Pennyweight
The pennyweight (dwt) equals one-twentieth of a troy ounce, 24 grains (about 1.555 g).
From the mass of a medieval English silver penny; symbol dwt from 'denarius weight'.
Jewelry making and precious-metal scrap valuation in the US.
Derived from the medieval English coinage system.
Poundal
The poundal (pdl) is the FPS absolute unit of force; its mass-equivalent on this scale is about 0.0141 kg.
Defined in the foot-pound-second absolute system in the late 19th century.
Early 20th-century physics and engineering.
Introduced in the absolute FPS system as an alternative to gravitational units.
Pennyweight to Poundal conversion formula
The relationship between pennyweights and poundals:
To convert pennyweights to poundals, multiply the value in pennyweights by 0.1103999969. To reverse, multiply poundals by 9.0579712698.
How to use this converter
Type a value into the calculator. The result in poundals updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Poundal to Pennyweight converter for the reverse direction.
Step-by-step: convert pennyweights to poundals
- Write down the value in pennyweights (dwt).
- Multiply that value by the factor 0.1103999969.
- The product is the equivalent value in poundals (pdl).
- To reverse, multiply the poundal value by 9.0579712698.
Worked examples
Example 1 — Convert 1 dwt to pdl:
1 × 0.1103999969 = 0.1103999969 pdl
Example 2 — Convert 100 dwt to pdl:
100 × 0.1103999969 = 11.0399996888 pdl
Real-world example — Postcard and small-object dimensions
A postcard is about 5 pennyweights wide. Converting to poundals is essential for international postal addressing forms that ask for dimensions in different units across countries.
5 dwt × 0.1103999969 = 0.5519999844 pdl
Real-world example — Ruler-scale measurements
A 30-pennyweight school ruler converts cleanly to poundals — useful when buying a desk accessory from a retailer whose product specs use a different unit.
30 dwt × 0.1103999969 = 3.3119999066 pdl
Real-world example — Hardware-scale dimensions
A 10-pennyweight fastener or component is about as long as a thumbnail. Mechanics and DIY enthusiasts convert between pennyweights and poundals daily when mixing metric and imperial tools.
10 dwt × 0.1103999969 = 1.1039999689 pdl
Pennyweight to Poundal conversion table
Standard reference values for converting pennyweights to poundals:
| Pennyweight [dwt] | Poundal [pdl] |
|---|---|
| 0.01 | 0.001104 |
| 0.1 | 0.0110399997 |
| 1 | 0.1103999969 |
| 2 | 0.2207999938 |
| 3 | 0.3311999907 |
| 4 | 0.4415999876 |
| 5 | 0.5519999844 |
| 10 | 1.1039999689 |
| 20 | 2.2079999378 |
| 30 | 3.3119999066 |
| 40 | 4.4159998755 |
| 50 | 5.5199998444 |
| 100 | 11.0399996888 |
| 500 | 55.1999984439 |
| 1000 | 110.3999968878 |
Frequently asked questions
How many poundals is 1 pennyweight?
How do I convert pennyweights to poundals?
How do I convert poundals back to pennyweights?
How many poundals is 100 pennyweights?
Popular weight unit conversions
Convert Pennyweight to other weight units
Show all Pennyweight conversions
Metric / SI (18 units)
Avoirdupois (15 units)
Troy & Apothecary (9 units)
Indian / South Asian (6 units)
Scientific / Atomic (9 units)
Astronomical (4 units)
Biblical / Ancient (14 units)
Sources & references
Conversion factor (1 dwt = 0.1103999969 pdl) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Astronomical Union — System of Astronomical Constants
The IAU defines astronomical units including the AU (149597870700 m exactly) light-year and parsec used in astronomy and astrophysics.