Convert Poundal to Pennyweight
Convert poundals to pennyweights instantly. 1 poundal = 9.0579712698 pennyweight — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Pennyweight to Poundal converter for the reverse conversion.
Units explained
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
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 to Pennyweight conversion formula
The relationship between poundals and pennyweights:
To convert poundals to pennyweights, multiply the value in poundals by 9.0579712698. To reverse, multiply pennyweights by 0.1103999969.
How to use this converter
Type a value into the calculator. The result in pennyweights updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Pennyweight to Poundal converter for the reverse direction.
Step-by-step: convert poundals to pennyweights
- Write down the value in poundals (pdl).
- Multiply that value by the factor 9.0579712698.
- The product is the equivalent value in pennyweights (dwt).
- To reverse, multiply the pennyweight value by 0.1103999969.
Worked examples
Example 1 — Convert 1 pdl to dwt:
1 × 9.0579712698 = 9.0579712698 dwt
Example 2 — Convert 100 pdl to dwt:
100 × 9.0579712698 = 905.7971269835 dwt
Real-world example — Hardware-scale dimensions
A 10-poundal fastener or component is about as long as a thumbnail. Mechanics and DIY enthusiasts convert between poundals and pennyweights daily when mixing metric and imperial tools.
10 pdl × 9.0579712698 = 90.5797126983 dwt
Real-world example — Postcard and small-object dimensions
A postcard is about 5 poundals wide. Converting to pennyweights is essential for international postal addressing forms that ask for dimensions in different units across countries.
5 pdl × 9.0579712698 = 45.2898563492 dwt
Real-world example — Ruler-scale measurements
A 30-poundal school ruler converts cleanly to pennyweights — useful when buying a desk accessory from a retailer whose product specs use a different unit.
30 pdl × 9.0579712698 = 271.739138095 dwt
Poundal to Pennyweight conversion table
Standard reference values for converting poundals to pennyweights:
| Poundal [pdl] | Pennyweight [dwt] |
|---|---|
| 0.01 | 0.0905797127 |
| 0.1 | 0.905797127 |
| 1 | 9.0579712698 |
| 2 | 18.1159425397 |
| 3 | 27.1739138095 |
| 4 | 36.2318850793 |
| 5 | 45.2898563492 |
| 10 | 90.5797126983 |
| 20 | 181.1594253967 |
| 30 | 271.739138095 |
| 40 | 362.3188507934 |
| 50 | 452.8985634917 |
| 100 | 905.7971269835 |
| 500 | 4528.9856349175 |
| 1000 | 9057.9712698349 |
Frequently asked questions
How many pennyweights is 1 poundal?
How do I convert poundals to pennyweights?
How do I convert pennyweights back to poundals?
How many pennyweights is 100 poundals?
Popular weight unit conversions
Convert Poundal to other weight units
Show all Poundal conversions
Metric / SI (18 units)
Avoirdupois (15 units)
Troy & Apothecary (10 units)
Indian / South Asian (6 units)
Scientific / Atomic (9 units)
Astronomical (4 units)
Biblical / Ancient (14 units)
Sources & references
Conversion factor (1 pdl = 9.0579712698 dwt) 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 Hydrographic Organization — Resolution on the Nautical Mile
International authority that standardised the nautical mile at exactly 1852 m in 1929 — the value adopted worldwide for sea and air navigation.