Mass and Weight · Unit Converter

Convert Dram (apothecary/troy) to Poundal

Convert drams (apothecary/troy) to poundals instantly. 1 dram (apothecary/troy) = 0.2759999993 poundal — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Poundal to Dram (apothecary/troy) converter for the reverse conversion.

Written by Sunith Babu L, Ph.D., Lead Engineer Reviewed by Dr. Ashok Kumar K, Ph.D.
Mass and Weight category 2 min read Published Last reviewed Updated

Units explained

Troy & Apothecary

Dram (apothecary/troy)

What is a dram (apothecary/troy)?

The apothecary (troy) dram equals one-eighth of a troy ounce, about 3.888 grams.

Origin of the dram (apothecary/troy)

From the apothecaries' system rooted in the Greek 'drachma'.

Where it is used

Historical pharmacy and medicine compounding.

When and where it was developed

Part of the apothecaries' system of weights used through the 19th century.

Force / Engineering

Poundal

What is a poundal?

The poundal (pdl) is the FPS absolute unit of force; its mass-equivalent on this scale is about 0.0141 kg.

Origin of the poundal

Defined in the foot-pound-second absolute system in the late 19th century.

Where it is used

Early 20th-century physics and engineering.

When and where it was developed

Introduced in the absolute FPS system as an alternative to gravitational units.

Dram (apothecary/troy) to Poundal conversion formula

The relationship between drams (apothecary/troy) and poundals:

1 dr ap = 0.2759999993 pdl
1 pdl = 3.6231884147 dr ap

To convert drams (apothecary/troy) to poundals, multiply the value in drams (apothecary/troy) by 0.2759999993. To reverse, multiply poundals by 3.6231884147.

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 Dram (apothecary/troy) converter for the reverse direction.

Step-by-step: convert drams (apothecary/troy) to poundals

  1. Write down the value in drams (apothecary/troy) (dr ap).
  2. Multiply that value by the factor 0.2759999993.
  3. The product is the equivalent value in poundals (pdl).
  4. To reverse, multiply the poundal value by 3.6231884147.

Worked examples

Example 1 — Convert 1 dr ap to pdl:
1 × 0.2759999993 = 0.2759999993 pdl

Example 2 — Convert 100 dr ap to pdl:
100 × 0.2759999993 = 27.5999999319 pdl

Real-world example — Postcard and small-object dimensions

A postcard is about 5 drams (apothecary/troy) wide. Converting to poundals is essential for international postal addressing forms that ask for dimensions in different units across countries.

5 dr ap × 0.2759999993 = 1.3799999966 pdl

Real-world example — Ruler-scale measurements

A 30-dram (apothecary/troy) school ruler converts cleanly to poundals — useful when buying a desk accessory from a retailer whose product specs use a different unit.

30 dr ap × 0.2759999993 = 8.2799999796 pdl

Real-world example — Hardware-scale dimensions

A 10-dram (apothecary/troy) fastener or component is about as long as a thumbnail. Mechanics and DIY enthusiasts convert between drams (apothecary/troy) and poundals daily when mixing metric and imperial tools.

10 dr ap × 0.2759999993 = 2.7599999932 pdl

Dram (apothecary/troy) to Poundal conversion table

Standard reference values for converting drams (apothecary/troy) to poundals:

Dram (apothecary/troy) [dr ap]Poundal [pdl]
0.010.00276
0.10.0275999999
10.2759999993
20.5519999986
30.827999998
41.1039999973
51.3799999966
102.7599999932
205.5199999864
308.2799999796
4011.0399999727
5013.7999999659
10027.5999999319
500137.9999996593
1000275.9999993185

Frequently asked questions

How many poundals is 1 dram (apothecary/troy)?
1 dram (apothecary/troy) equals 0.2759999993 poundal.
How do I convert drams (apothecary/troy) to poundals?
Multiply the value in drams (apothecary/troy) by 0.2759999993 to get poundals.
How do I convert poundals back to drams (apothecary/troy)?
Multiply the value in poundals by 3.6231884147, or use the Poundal to Dram (apothecary/troy) converter.
How many poundals is 100 drams (apothecary/troy)?
100 drams (apothecary/troy) equals 27.5999999319 poundals, because 100 × 0.2759999993 = 27.5999999319.

Convert Dram (apothecary/troy) to other weight units

Show all Dram (apothecary/troy) conversions
Metric / SI (18 units)
Dram (apothecary/troy) to Attogram (ag) Dram (apothecary/troy) to Femtogram (fg) Dram (apothecary/troy) to Picogram (pg) Dram (apothecary/troy) to Nanogram (ng) Dram (apothecary/troy) to Microgram (µg) Dram (apothecary/troy) to Milligram (mg) Dram (apothecary/troy) to Centigram (cg) Dram (apothecary/troy) to Decigram (dg) Dram (apothecary/troy) to Gram (g) Dram (apothecary/troy) to Dekagram (dag) Dram (apothecary/troy) to Hectogram (hg) Dram (apothecary/troy) to Kilogram (kg) Dram (apothecary/troy) to Quintal (metric) (q) Dram (apothecary/troy) to Metric Ton (t) Dram (apothecary/troy) to Gigagram (Gg) Dram (apothecary/troy) to Teragram (Tg) Dram (apothecary/troy) to Petagram (Pg) Dram (apothecary/troy) to Exagram (Eg)
Avoirdupois (15 units)
Dram (apothecary/troy) to Grain (gr) Dram (apothecary/troy) to Dram (avoirdupois) (dr) Dram (apothecary/troy) to Ounce (oz) Dram (apothecary/troy) to Pound (lb) Dram (apothecary/troy) to Clove (clove) Dram (apothecary/troy) to Stone (US) (st) Dram (apothecary/troy) to Stone (UK) (st) Dram (apothecary/troy) to Quarter (US) (qr) Dram (apothecary/troy) to Quarter (UK) (qr) Dram (apothecary/troy) to Hundredweight (US) (cwt) Dram (apothecary/troy) to Hundredweight (UK) (cwt) Dram (apothecary/troy) to Wey (wey) Dram (apothecary/troy) to Kilopound (kip) (kip) Dram (apothecary/troy) to Ton (short, US) (sh tn) Dram (apothecary/troy) to Ton (long, UK) (long tn)
Troy & Apothecary (9 units)
Dram (apothecary/troy) to Point (1/100 carat) (pt) Dram (apothecary/troy) to Carat (metric) (ct) Dram (apothecary/troy) to Scruple (apothecary) (s ap) Dram (apothecary/troy) to Pennyweight (dwt) Dram (apothecary/troy) to Momme (mom) Dram (apothecary/troy) to Mace (mace) Dram (apothecary/troy) to Troy Ounce (oz t) Dram (apothecary/troy) to Tael (tael) Dram (apothecary/troy) to Pound (troy/apothecary) (lb t)
Indian / South Asian (6 units)
Dram (apothecary/troy) to Ratti (ratti) Dram (apothecary/troy) to Masha (masha) Dram (apothecary/troy) to Tola (tola) Dram (apothecary/troy) to Chittack (Chatank) (chittack) Dram (apothecary/troy) to Seer (Ser) (seer) Dram (apothecary/troy) to Maund (Mann) (maund)
Scientific / Atomic (9 units)
Dram (apothecary/troy) to Electron Mass (rest) (me) Dram (apothecary/troy) to MeV/c2 (MeV/c²) Dram (apothecary/troy) to Muon Mass (mµ) Dram (apothecary/troy) to Atomic Mass Unit (u) Dram (apothecary/troy) to Proton Mass (mp) Dram (apothecary/troy) to Neutron Mass (mn) Dram (apothecary/troy) to Deuteron Mass (md) Dram (apothecary/troy) to Carbon-12 Atom Mass (C-12) Dram (apothecary/troy) to Planck Mass (mP)
Astronomical (4 units)
Dram (apothecary/troy) to Lunar Mass (Moon) (M☾) Dram (apothecary/troy) to Earth's Mass (M⊕) Dram (apothecary/troy) to Jupiter Mass (MJ) Dram (apothecary/troy) to Sun's Mass (M☉)
Biblical / Ancient (14 units)
Dram (apothecary/troy) to Lepton (Biblical Roman) (lepton) Dram (apothecary/troy) to Quadrans (Biblical Roman) (quadrans) Dram (apothecary/troy) to Assarion (Biblical Roman) (assarion) Dram (apothecary/troy) to Gerah (Biblical Hebrew) (gerah) Dram (apothecary/troy) to Drachma (Biblical Greek) (drachma) Dram (apothecary/troy) to Denarius (Biblical Roman) (denarius) Dram (apothecary/troy) to Bekan (Biblical Hebrew) (bekah) Dram (apothecary/troy) to Didrachma (Biblical Greek) (didrachma) Dram (apothecary/troy) to Shekel (Biblical Hebrew) (shekel) Dram (apothecary/troy) to Tetradrachma (Biblical Greek) (tetra) Dram (apothecary/troy) to Mina (Biblical Greek) (mina) Dram (apothecary/troy) to Mina (Biblical Hebrew) (mina) Dram (apothecary/troy) to Talent (Biblical Greek) (talent) Dram (apothecary/troy) to Talent (Biblical Hebrew) (talent)
Force / Engineering (5 units)
Dram (apothecary/troy) to Poundal (pdl) Dram (apothecary/troy) to Ton (assay) (US) (AT) Dram (apothecary/troy) to Ton (assay) (UK) (AT) Dram (apothecary/troy) to Kilogram-force square second/meter (hyl) Dram (apothecary/troy) to Slug (slug)

Sources & references

Conversion factor (1 dr ap = 0.2759999993 pdl) verified against the following authoritative sources:

Results are provided for general reference. Verify critical measurements against an authoritative standard.