Mass and Weight · Unit Converter

Convert Dram (avoirdupois) to Pound (troy/apothecary)

Convert drams (avoirdupois) to pounds (troy/apothecary) instantly. 1 dram (avoirdupois) = 0.0047471788 pound (troy/apothecary) — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Pound (troy/apothecary) to Dram (avoirdupois) 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

Avoirdupois

Dram (avoirdupois)

What is a dram (avoirdupois)?

The avoirdupois dram (dr) equals one-sixteenth of an ounce, about 1.77 grams.

Origin of the dram (avoirdupois)

From Greek 'drachma' through Latin 'dragma'.

Where it is used

Historically pharmacy; today occasional cooking and firearms (powder) use.

When and where it was developed

Defined as 1/256 of the avoirdupois pound.

Troy & Apothecary

Pound (troy/apothecary)

What is a pound (troy/apothecary)?

The troy (apothecary) pound equals 12 troy ounces, about 373.24 grams.

Origin of the pound (troy/apothecary)

Named for Troyes, France, a major medieval trade-fair town.

Where it is used

Historical pricing of precious metals; now largely superseded by the troy ounce.

When and where it was developed

Adopted as the English coinage standard under Henry VIII in 1528.

Dram (avoirdupois) to Pound (troy/apothecary) conversion formula

The relationship between drams (avoirdupois) and pounds (troy/apothecary):

1 dr = 0.0047471788 lb t
1 lb t = 210.6514280141 dr

To convert drams (avoirdupois) to pounds (troy/apothecary), multiply the value in drams (avoirdupois) by 0.0047471788. To reverse, multiply pounds (troy/apothecary) by 210.6514280141.

How to use this converter

Type a value into the calculator. The result in pounds (troy/apothecary) updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Pound (troy/apothecary) to Dram (avoirdupois) converter for the reverse direction.

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

  1. Write down the value in drams (avoirdupois) (dr).
  2. Multiply that value by the factor 0.0047471788.
  3. The product is the equivalent value in pounds (troy/apothecary) (lb t).
  4. To reverse, multiply the pound (troy/apothecary) value by 210.6514280141.

Worked examples

Example 1 — Convert 1 dr to lb t:
1 × 0.0047471788 = 0.0047471788 lb t

Example 2 — Convert 100 dr to lb t:
100 × 0.0047471788 = 0.4747178832 lb t

Real-world example — Children's height milestones

A 150-dram (avoirdupois)-tall child measures a value in pounds (troy/apothecary) that's commonly used for theme-park ride height requirements when travelling between countries that use different measurement units.

150 dr × 0.0047471788 = 0.7120768248 lb t

Real-world example — Body height conversion

You enter your height as 180 drams (avoirdupois) into an international job or visa application. The form then asks for the same value in pounds (troy/apothecary) — converting between these adjacent units is one of the most-used length conversions globally.

180 dr × 0.0047471788 = 0.8544921898 lb t

Real-world example — Furniture and large objects

A 72-dram (avoirdupois) piece of furniture converts to a value in pounds (troy/apothecary) that's easier to mentally compare with room dimensions. This is the typical workflow when shopping internationally and product specs use a different unit than your room measurements.

72 dr × 0.0047471788 = 0.3417968759 lb t

Dram (avoirdupois) to Pound (troy/apothecary) conversion table

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

Dram (avoirdupois) [dr]Pound (troy/apothecary) [lb t]
0.014.747179e-5
0.10.0004747179
10.0047471788
20.0094943577
30.0142415365
40.0189887153
50.0237358942
100.0474717883
200.0949435766
300.142415365
400.1898871533
500.2373589416
1000.4747178832
5002.373589416
10004.747178832

Frequently asked questions

How many pounds (troy/apothecary) is 1 dram (avoirdupois)?
1 dram (avoirdupois) equals 0.0047471788 pound (troy/apothecary).
How do I convert drams (avoirdupois) to pounds (troy/apothecary)?
Multiply the value in drams (avoirdupois) by 0.0047471788 to get pounds (troy/apothecary).
How do I convert pounds (troy/apothecary) back to drams (avoirdupois)?
Multiply the value in pounds (troy/apothecary) by 210.6514280141, or use the Pound (troy/apothecary) to Dram (avoirdupois) converter.
How many pounds (troy/apothecary) is 100 drams (avoirdupois)?
100 drams (avoirdupois) equals 0.4747178832 pounds (troy/apothecary), because 100 × 0.0047471788 = 0.4747178832.

Convert Dram (avoirdupois) to other weight units

Show all Dram (avoirdupois) conversions
Metric / SI (18 units)
Dram (avoirdupois) to Attogram (ag) Dram (avoirdupois) to Femtogram (fg) Dram (avoirdupois) to Picogram (pg) Dram (avoirdupois) to Nanogram (ng) Dram (avoirdupois) to Microgram (µg) Dram (avoirdupois) to Milligram (mg) Dram (avoirdupois) to Centigram (cg) Dram (avoirdupois) to Decigram (dg) Dram (avoirdupois) to Gram (g) Dram (avoirdupois) to Dekagram (dag) Dram (avoirdupois) to Hectogram (hg) Dram (avoirdupois) to Kilogram (kg) Dram (avoirdupois) to Quintal (metric) (q) Dram (avoirdupois) to Metric Ton (t) Dram (avoirdupois) to Gigagram (Gg) Dram (avoirdupois) to Teragram (Tg) Dram (avoirdupois) to Petagram (Pg) Dram (avoirdupois) to Exagram (Eg)
Avoirdupois (14 units)
Dram (avoirdupois) to Grain (gr) Dram (avoirdupois) to Ounce (oz) Dram (avoirdupois) to Pound (lb) Dram (avoirdupois) to Clove (clove) Dram (avoirdupois) to Stone (US) (st) Dram (avoirdupois) to Stone (UK) (st) Dram (avoirdupois) to Quarter (US) (qr) Dram (avoirdupois) to Quarter (UK) (qr) Dram (avoirdupois) to Hundredweight (US) (cwt) Dram (avoirdupois) to Hundredweight (UK) (cwt) Dram (avoirdupois) to Wey (wey) Dram (avoirdupois) to Kilopound (kip) (kip) Dram (avoirdupois) to Ton (short, US) (sh tn) Dram (avoirdupois) to Ton (long, UK) (long tn)
Troy & Apothecary (10 units)
Dram (avoirdupois) to Point (1/100 carat) (pt) Dram (avoirdupois) to Carat (metric) (ct) Dram (avoirdupois) to Scruple (apothecary) (s ap) Dram (avoirdupois) to Pennyweight (dwt) Dram (avoirdupois) to Momme (mom) Dram (avoirdupois) to Mace (mace) Dram (avoirdupois) to Dram (apothecary/troy) (dr ap) Dram (avoirdupois) to Troy Ounce (oz t) Dram (avoirdupois) to Tael (tael) Dram (avoirdupois) to Pound (troy/apothecary) (lb t)
Indian / South Asian (6 units)
Dram (avoirdupois) to Ratti (ratti) Dram (avoirdupois) to Masha (masha) Dram (avoirdupois) to Tola (tola) Dram (avoirdupois) to Chittack (Chatank) (chittack) Dram (avoirdupois) to Seer (Ser) (seer) Dram (avoirdupois) to Maund (Mann) (maund)
Scientific / Atomic (9 units)
Dram (avoirdupois) to Electron Mass (rest) (me) Dram (avoirdupois) to MeV/c2 (MeV/c²) Dram (avoirdupois) to Muon Mass (mµ) Dram (avoirdupois) to Atomic Mass Unit (u) Dram (avoirdupois) to Proton Mass (mp) Dram (avoirdupois) to Neutron Mass (mn) Dram (avoirdupois) to Deuteron Mass (md) Dram (avoirdupois) to Carbon-12 Atom Mass (C-12) Dram (avoirdupois) to Planck Mass (mP)
Astronomical (4 units)
Dram (avoirdupois) to Lunar Mass (Moon) (M☾) Dram (avoirdupois) to Earth's Mass (M⊕) Dram (avoirdupois) to Jupiter Mass (MJ) Dram (avoirdupois) to Sun's Mass (M☉)
Biblical / Ancient (14 units)
Dram (avoirdupois) to Lepton (Biblical Roman) (lepton) Dram (avoirdupois) to Quadrans (Biblical Roman) (quadrans) Dram (avoirdupois) to Assarion (Biblical Roman) (assarion) Dram (avoirdupois) to Gerah (Biblical Hebrew) (gerah) Dram (avoirdupois) to Drachma (Biblical Greek) (drachma) Dram (avoirdupois) to Denarius (Biblical Roman) (denarius) Dram (avoirdupois) to Bekan (Biblical Hebrew) (bekah) Dram (avoirdupois) to Didrachma (Biblical Greek) (didrachma) Dram (avoirdupois) to Shekel (Biblical Hebrew) (shekel) Dram (avoirdupois) to Tetradrachma (Biblical Greek) (tetra) Dram (avoirdupois) to Mina (Biblical Greek) (mina) Dram (avoirdupois) to Mina (Biblical Hebrew) (mina) Dram (avoirdupois) to Talent (Biblical Greek) (talent) Dram (avoirdupois) to Talent (Biblical Hebrew) (talent)
Force / Engineering (5 units)
Dram (avoirdupois) to Poundal (pdl) Dram (avoirdupois) to Ton (assay) (US) (AT) Dram (avoirdupois) to Ton (assay) (UK) (AT) Dram (avoirdupois) to Kilogram-force square second/meter (hyl) Dram (avoirdupois) to Slug (slug)

Sources & references

Conversion factor (1 dr = 0.0047471788 lb t) verified against the following authoritative sources:

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