Mass and Weight · Unit Converter

Convert Dram (avoirdupois) to Ton (long, UK)

Convert drams (avoirdupois) to tons (long, uk) instantly. 1 dram (avoirdupois) = 1.743862e-6 ton (long, uk) — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Ton (long, UK) 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.

Avoirdupois

Ton (long, UK)

What is a ton (long, uk)?

The long (UK) ton equals 2,240 pounds, about 1,016 kilograms.

Origin of the ton (long, uk)

The British imperial ton, equal to 20 long hundredweight.

Where it is used

UK shipping and historical heavy industry.

When and where it was developed

Standardized within the British imperial system.

Dram (avoirdupois) to Ton (long, UK) conversion formula

The relationship between drams (avoirdupois) and tons (long, uk):

1 dr = 1.743862e-6 long tn
1 long tn = 573439.9984829375 dr

To convert drams (avoirdupois) to tons (long, uk), multiply the value in drams (avoirdupois) by 1.743862e-6. To reverse, multiply tons (long, uk) by 573439.9984829375.

How to use this converter

Type a value into the calculator. The result in tons (long, uk) updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Ton (long, UK) to Dram (avoirdupois) converter for the reverse direction.

Step-by-step: convert drams (avoirdupois) to tons (long, uk)

  1. Write down the value in drams (avoirdupois) (dr).
  2. Multiply that value by the factor 1.743862e-6.
  3. The product is the equivalent value in tons (long, uk) (long tn).
  4. To reverse, multiply the ton (long, uk) value by 573439.9984829375.

Worked examples

Example 1 — Convert 1 dr to long tn:
1 × 1.743862e-6 = 1.743862e-6 long tn

Example 2 — Convert 100 dr to long tn:
100 × 1.743862e-6 = 0.0001743862 long tn

Real-world example — Small to geographic-scale

100,000 drams (avoirdupois) equals one ton (long, uk) — a useful conversion when small-scale survey diagrams must be related to road-network distances on a different map.

100000 dr × 1.743862e-6 = 0.1743861612 long tn

Real-world example — Architectural to geographic scale

A 100,000-dram (avoirdupois) measurement equals one ton (long, uk). The five-order-of-magnitude scale change comes up in mapping work where architectural site plans must be related to road-network maps.

100000 dr × 1.743862e-6 = 0.1743861612 long tn

Dram (avoirdupois) to Ton (long, UK) conversion table

Standard reference values for converting drams (avoirdupois) to tons (long, uk):

Dram (avoirdupois) [dr]Ton (long, UK) [long tn]
0.011.743862e-8
0.11.743862e-7
11.743862e-6
23.487723e-6
35.231585e-6
46.975446e-6
58.719308e-6
101.743862e-5
203.487723e-5
305.231585e-5
406.975446e-5
508.719308e-5
1000.0001743862
5000.0008719308
10000.0017438616

Frequently asked questions

How many tons (long, uk) is 1 dram (avoirdupois)?
1 dram (avoirdupois) equals 1.743862e-6 ton (long, uk).
How do I convert drams (avoirdupois) to tons (long, uk)?
Multiply the value in drams (avoirdupois) by 1.743862e-6 to get tons (long, uk).
How do I convert tons (long, uk) back to drams (avoirdupois)?
Multiply the value in tons (long, uk) by 573439.9984829375, or use the Ton (long, UK) to Dram (avoirdupois) converter.
How many tons (long, uk) is 100 drams (avoirdupois)?
100 drams (avoirdupois) equals 0.0001743862 tons (long, uk), because 100 × 1.743862e-6 = 0.0001743862.

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 = 1.743862e-6 long tn) verified against the following authoritative sources:

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