Mass and Weight · Unit Converter

Convert Ton (long, UK) to Dram (apothecary/troy)

Convert tons (long, uk) to drams (apothecary/troy) instantly. 1 ton (long, uk) = 261333.3333333333 dram (apothecary/troy) — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Dram (apothecary/troy) to Ton (long, UK) 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

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.

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.

Ton (long, UK) to Dram (apothecary/troy) conversion formula

The relationship between tons (long, uk) and drams (apothecary/troy):

1 long tn = 261333.3333333333 dr ap
1 dr ap = 3.826531e-6 long tn

To convert tons (long, uk) to drams (apothecary/troy), multiply the value in tons (long, uk) by 261333.3333333333. To reverse, multiply drams (apothecary/troy) by 3.826531e-6.

How to use this converter

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

Step-by-step: convert tons (long, uk) to drams (apothecary/troy)

  1. Write down the value in tons (long, uk) (long tn).
  2. Multiply that value by the factor 261333.3333333333.
  3. The product is the equivalent value in drams (apothecary/troy) (dr ap).
  4. To reverse, multiply the dram (apothecary/troy) value by 3.826531e-6.

Worked examples

Example 1 — Convert 1 long tn to dr ap:
1 × 261333.3333333333 = 261333.3333333333 dr ap

Example 2 — Convert 100 long tn to dr ap:
100 × 261333.3333333333 = 2.613333e+7 dr ap

Real-world example — Geographic to architectural conversion

One ton (long, uk) equals 100,000 drams (apothecary/troy). The conversion bridges geographic-scale survey work and architectural-scale building plans on the same drawing.

1 long tn × 261333.3333333333 = 261333.3333333333 dr ap

Real-world example — Geographic to architectural scale

One ton (long, uk) equals 100,000 drams (apothecary/troy). Map scales use this when an architectural site plan (in the smaller unit) must be related to road-network plans (in the larger unit) on the same drawing.

1 long tn × 261333.3333333333 = 261333.3333333333 dr ap

Ton (long, UK) to Dram (apothecary/troy) conversion table

Standard reference values for converting tons (long, uk) to drams (apothecary/troy):

Ton (long, UK) [long tn]Dram (apothecary/troy) [dr ap]
0.012613.3333333333
0.126133.3333333333
1261333.3333333333
2522666.6666666666
3784000
41045333.3333333333
51306666.6666666665
102613333.333333333
205226666.666666666
307839999.9999999991
401.045333e+7
501.306667e+7
1002.613333e+7
5001.306667e+8
10002.613333e+8

Frequently asked questions

How many drams (apothecary/troy) is 1 ton (long, uk)?
1 ton (long, uk) equals 261333.3333333333 dram (apothecary/troy).
How do I convert tons (long, uk) to drams (apothecary/troy)?
Multiply the value in tons (long, uk) by 261333.3333333333 to get drams (apothecary/troy).
How do I convert drams (apothecary/troy) back to tons (long, uk)?
Multiply the value in drams (apothecary/troy) by 3.826531e-6, or use the Dram (apothecary/troy) to Ton (long, UK) converter.
How many drams (apothecary/troy) is 100 tons (long, uk)?
100 tons (long, uk) equals 2.613333e+7 drams (apothecary/troy), because 100 × 261333.3333333333 = 2.613333e+7.

Convert Ton (long, UK) to other weight units

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

Sources & references

Conversion factor (1 long tn = 261333.3333333333 dr ap) verified against the following authoritative sources:

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