Mass and Weight · Unit Converter

Convert Dram (apothecary/troy) to Quintal (metric)

Convert drams (apothecary/troy) to quintals (metric) instantly. 1 dram (apothecary/troy) = 3.887935e-5 quintal (metric) — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Quintal (metric) 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.

Metric / SI

Quintal (metric)

What is a quintal (metric)?

The metric quintal (q) equals 100 kilograms.

Origin of the quintal (metric)

From Latin 'centenarius' (hundredweight) via Arabic 'qintar'.

Where it is used

Agriculture across India, Europe, and Latin America for grain and produce.

When and where it was developed

Fixed at 100 kg with the spread of the metric system in the 19th century.

Dram (apothecary/troy) to Quintal (metric) conversion formula

The relationship between drams (apothecary/troy) and quintals (metric):

1 dr ap = 3.887935e-5 q
1 q = 25720.5972549024 dr ap

To convert drams (apothecary/troy) to quintals (metric), multiply the value in drams (apothecary/troy) by 3.887935e-5. To reverse, multiply quintals (metric) by 25720.5972549024.

How to use this converter

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

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

  1. Write down the value in drams (apothecary/troy) (dr ap).
  2. Multiply that value by the factor 3.887935e-5.
  3. The product is the equivalent value in quintals (metric) (q).
  4. To reverse, multiply the quintal (metric) value by 25720.5972549024.

Worked examples

Example 1 — Convert 1 dr ap to q:
1 × 3.887935e-5 = 3.887935e-5 q

Example 2 — Convert 100 dr ap to q:
100 × 3.887935e-5 = 0.0038879346 q

Real-world example — Ruler-scale measurements

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

30 dr ap × 3.887935e-5 = 0.0011663804 q

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 quintals (metric) daily when mixing metric and imperial tools.

10 dr ap × 3.887935e-5 = 0.0003887935 q

Real-world example — Postcard and small-object dimensions

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

5 dr ap × 3.887935e-5 = 0.0001943967 q

Dram (apothecary/troy) to Quintal (metric) conversion table

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

Dram (apothecary/troy) [dr ap]Quintal (metric) [q]
0.013.887935e-7
0.13.887935e-6
13.887935e-5
27.775869e-5
30.000116638
40.0001555174
50.0001943967
100.0003887935
200.0007775869
300.0011663804
400.0015551738
500.0019439673
1000.0038879346
5000.019439673
10000.038879346

Frequently asked questions

How many quintals (metric) is 1 dram (apothecary/troy)?
1 dram (apothecary/troy) equals 3.887935e-5 quintal (metric).
How do I convert drams (apothecary/troy) to quintals (metric)?
Multiply the value in drams (apothecary/troy) by 3.887935e-5 to get quintals (metric).
How do I convert quintals (metric) back to drams (apothecary/troy)?
Multiply the value in quintals (metric) by 25720.5972549024, or use the Quintal (metric) to Dram (apothecary/troy) converter.
How many quintals (metric) is 100 drams (apothecary/troy)?
100 drams (apothecary/troy) equals 0.0038879346 quintals (metric), because 100 × 3.887935e-5 = 0.0038879346.

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 = 3.887935e-5 q) verified against the following authoritative sources:

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