Mass and Weight · Unit Converter

Convert Dram (apothecary/troy) to Gerah (Biblical Hebrew)

Convert drams (apothecary/troy) to gerahs (biblical hebrew) instantly. 1 dram (apothecary/troy) = 6.8209378947 gerah (biblical hebrew) — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Gerah (Biblical Hebrew) 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.

Biblical / Ancient

Gerah (Biblical Hebrew)

What is a gerah (biblical hebrew)?

The gerah was the smallest Hebrew weight, about 0.57 gram (one-twentieth of a shekel).

Origin of the gerah (biblical hebrew)

From a Hebrew word for a small grain or bean.

Where it is used

Ancient Israelite metrology.

When and where it was developed

Part of the smallest divisions of the biblical shekel.

Dram (apothecary/troy) to Gerah (Biblical Hebrew) 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 (apothecary/troy) and gerahs (biblical hebrew):

1 dr ap = 6.8209378947 gerah
1 gerah = 0.1466074044 dr ap

To convert drams (apothecary/troy) to gerahs (biblical hebrew), multiply the value in drams (apothecary/troy) by 6.8209378947. To reverse, multiply gerahs (biblical hebrew) by 0.1466074044.

How to use this converter

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

Step-by-step: convert drams (apothecary/troy) to gerahs (biblical hebrew)

  1. Write down the value in drams (apothecary/troy) (dr ap).
  2. Multiply that value by the factor 6.8209378947.
  3. The product is the equivalent value in gerahs (biblical hebrew) (gerah).
  4. To reverse, multiply the gerah (biblical hebrew) value by 0.1466074044.

Worked examples

Example 1 — Convert 1 dr ap to gerah:
1 × 6.8209378947 = 6.8209378947 gerah

Example 2 — Convert 100 dr ap to gerah:
100 × 6.8209378947 = 682.0937894737 gerah

Real-world example — Adjacent small-scale precision

One dram (apothecary/troy) equals 1,000 gerahs (biblical hebrew) — 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 ap × 6.8209378947 = 6.8209378947 gerah

Real-world example — Adjacent metric sub-units

One dram (apothecary/troy) equals 1,000 gerahs (biblical hebrew). Engineers move between these scales constantly: PCB feature sizes in the larger unit, wire-bond diameters in the smaller.

1 dr ap × 6.8209378947 = 6.8209378947 gerah

Dram (apothecary/troy) to Gerah (Biblical Hebrew) conversion table

Standard reference values for converting drams (apothecary/troy) to gerahs (biblical hebrew):

Dram (apothecary/troy) [dr ap]Gerah (Biblical Hebrew) [gerah]
0.010.0682093789
0.10.6820937895
16.8209378947
213.6418757895
320.4628136842
427.2837515789
534.1046894737
1068.2093789474
20136.4187578947
30204.6281368421
40272.8375157895
50341.0468947368
100682.0937894737
5003410.4689473684
10006820.9378947368

Frequently asked questions

How many gerahs (biblical hebrew) is 1 dram (apothecary/troy)?
1 dram (apothecary/troy) equals 6.8209378947 gerah (biblical hebrew).
How do I convert drams (apothecary/troy) to gerahs (biblical hebrew)?
Multiply the value in drams (apothecary/troy) by 6.8209378947 to get gerahs (biblical hebrew).
How do I convert gerahs (biblical hebrew) back to drams (apothecary/troy)?
Multiply the value in gerahs (biblical hebrew) by 0.1466074044, or use the Gerah (Biblical Hebrew) to Dram (apothecary/troy) converter.
How many gerahs (biblical hebrew) is 100 drams (apothecary/troy)?
100 drams (apothecary/troy) equals 682.0937894737 gerahs (biblical hebrew), because 100 × 6.8209378947 = 682.0937894737.

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 = 6.8209378947 gerah) verified against the following authoritative sources:

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