Mass and Weight · Unit Converter

Convert Dram (avoirdupois) to Quadrans (Biblical Roman)

Convert drams (avoirdupois) to quadranses (biblical roman) instantly. 1 dram (avoirdupois) = 29.4540255967 quadrans (biblical roman) — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Quadrans (Biblical Roman) 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.

Biblical / Ancient

Quadrans (Biblical Roman)

What is a quadrans (biblical roman)?

The quadrans was a quarter of an as, about 0.06 gram in this scale.

Origin of the quadrans (biblical roman)

From Latin 'quadrans', a quarter part.

Where it is used

Roman small change referenced in scripture.

When and where it was developed

A minor Roman bronze denomination.

Dram (avoirdupois) to Quadrans (Biblical Roman) conversion formula

Note: this conversion uses a generally accepted modern value. Historical and regional definitions of this unit varied across times and places.

The relationship between drams (avoirdupois) and quadranses (biblical roman):

1 dr = 29.4540255967 quadrans
1 quadrans = 0.0339512165 dr

To convert drams (avoirdupois) to quadranses (biblical roman), multiply the value in drams (avoirdupois) by 29.4540255967. To reverse, multiply quadranses (biblical roman) by 0.0339512165.

How to use this converter

Type a value into the calculator. The result in quadranses (biblical roman) updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Quadrans (Biblical Roman) to Dram (avoirdupois) converter for the reverse direction.

Step-by-step: convert drams (avoirdupois) to quadranses (biblical roman)

  1. Write down the value in drams (avoirdupois) (dr).
  2. Multiply that value by the factor 29.4540255967.
  3. The product is the equivalent value in quadranses (biblical roman) (quadrans).
  4. To reverse, multiply the quadrans (biblical roman) value by 0.0339512165.

Worked examples

Example 1 — Convert 1 dr to quadrans:
1 × 29.4540255967 = 29.4540255967 quadrans

Example 2 — Convert 100 dr to quadrans:
100 × 29.4540255967 = 2945.4025596654 quadrans

Real-world example — Adjacent small-scale precision

One dram (avoirdupois) equals 1,000 quadranses (biblical roman) — the standard sub-millimeter precision conversion that materials engineers use whenever they switch between bulk material thickness specs (larger unit) and surface-finish characteristics (smaller unit).

1 dr × 29.4540255967 = 29.4540255967 quadrans

Real-world example — Adjacent metric sub-units

One dram (avoirdupois) equals 1,000 quadranses (biblical roman). Engineers move between these scales constantly: PCB feature sizes in the larger unit, wire-bond diameters in the smaller.

1 dr × 29.4540255967 = 29.4540255967 quadrans

Dram (avoirdupois) to Quadrans (Biblical Roman) conversion table

Standard reference values for converting drams (avoirdupois) to quadranses (biblical roman):

Dram (avoirdupois) [dr]Quadrans (Biblical Roman) [quadrans]
0.010.294540256
0.12.9454025597
129.4540255967
258.9080511933
388.36207679
4117.8161023866
5147.2701279833
10294.5402559665
20589.0805119331
30883.6207678996
401178.1610238662
501472.7012798327
1002945.4025596654
50014727.012798327
100029454.0255966541

Frequently asked questions

How many quadranses (biblical roman) is 1 dram (avoirdupois)?
1 dram (avoirdupois) equals 29.4540255967 quadrans (biblical roman).
How do I convert drams (avoirdupois) to quadranses (biblical roman)?
Multiply the value in drams (avoirdupois) by 29.4540255967 to get quadranses (biblical roman).
How do I convert quadranses (biblical roman) back to drams (avoirdupois)?
Multiply the value in quadranses (biblical roman) by 0.0339512165, or use the Quadrans (Biblical Roman) to Dram (avoirdupois) converter.
How many quadranses (biblical roman) is 100 drams (avoirdupois)?
100 drams (avoirdupois) equals 2945.4025596654 quadranses (biblical roman), because 100 × 29.4540255967 = 2945.4025596654.

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 = 29.4540255967 quadrans) verified against the following authoritative sources:

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