Convert Gerah (Biblical Hebrew) to Dram (avoirdupois)
Convert gerahs (biblical hebrew) to drams (avoirdupois) instantly. 1 gerah (biblical hebrew) = 0.3216985321 dram (avoirdupois) — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Dram (avoirdupois) to Gerah (Biblical Hebrew) converter for the reverse conversion.
Units explained
Gerah (Biblical Hebrew)
The gerah was the smallest Hebrew weight, about 0.57 gram (one-twentieth of a shekel).
From a Hebrew word for a small grain or bean.
Ancient Israelite metrology.
Part of the smallest divisions of the biblical shekel.
Dram (avoirdupois)
The avoirdupois dram (dr) equals one-sixteenth of an ounce, about 1.77 grams.
From Greek 'drachma' through Latin 'dragma'.
Historically pharmacy; today occasional cooking and firearms (powder) use.
Defined as 1/256 of the avoirdupois pound.
Gerah (Biblical Hebrew) to Dram (avoirdupois) 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 gerahs (biblical hebrew) and drams (avoirdupois):
To convert gerahs (biblical hebrew) to drams (avoirdupois), multiply the value in gerahs (biblical hebrew) by 0.3216985321. To reverse, multiply drams (avoirdupois) by 3.1085003509.
How to use this converter
Type a value into the calculator. The result in drams (avoirdupois) 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 (avoirdupois) to Gerah (Biblical Hebrew) converter for the reverse direction.
Step-by-step: convert gerahs (biblical hebrew) to drams (avoirdupois)
- Write down the value in gerahs (biblical hebrew) (gerah).
- Multiply that value by the factor 0.3216985321.
- The product is the equivalent value in drams (avoirdupois) (dr).
- To reverse, multiply the dram (avoirdupois) value by 3.1085003509.
Worked examples
Example 1 — Convert 1 gerah to dr:
1 × 0.3216985321 = 0.3216985321 dr
Example 2 — Convert 100 gerah to dr:
100 × 0.3216985321 = 32.1698532129 dr
Real-world example — Plastic film and laminate thickness
A 500-gerah (biblical hebrew) sheet is a typical spec for ID-card laminates and film overlays. Converting to drams (avoirdupois) aligns the value with the unit most CAD systems and material datasheets prefer.
500 gerah × 0.3216985321 = 160.8492660646 dr
Real-world example — Packaging gauge
A 4-gerah (biblical hebrew) plastic bag thickness is a common spec for grocery and freezer bags. Converting from gerahs (biblical hebrew) to drams (avoirdupois) is what packaging buyers do whenever they bridge US and metric supplier quotes.
4 gerah × 0.3216985321 = 1.2867941285 dr
Gerah (Biblical Hebrew) to Dram (avoirdupois) conversion table
Standard reference values for converting gerahs (biblical hebrew) to drams (avoirdupois):
| Gerah (Biblical Hebrew) [gerah] | Dram (avoirdupois) [dr] |
|---|---|
| 0.01 | 0.0032169853 |
| 0.1 | 0.0321698532 |
| 1 | 0.3216985321 |
| 2 | 0.6433970643 |
| 3 | 0.9650955964 |
| 4 | 1.2867941285 |
| 5 | 1.6084926606 |
| 10 | 3.2169853213 |
| 20 | 6.4339706426 |
| 30 | 9.6509559639 |
| 40 | 12.8679412852 |
| 50 | 16.0849266065 |
| 100 | 32.1698532129 |
| 500 | 160.8492660646 |
| 1000 | 321.6985321291 |
Frequently asked questions
How many drams (avoirdupois) is 1 gerah (biblical hebrew)?
How do I convert gerahs (biblical hebrew) to drams (avoirdupois)?
How do I convert drams (avoirdupois) back to gerahs (biblical hebrew)?
How many drams (avoirdupois) is 100 gerahs (biblical hebrew)?
Popular weight unit conversions
Convert Gerah (Biblical Hebrew) to other weight units
Show all Gerah (Biblical Hebrew) conversions
Metric / SI (18 units)
Avoirdupois (15 units)
Troy & Apothecary (10 units)
Indian / South Asian (6 units)
Scientific / Atomic (9 units)
Astronomical (4 units)
Biblical / Ancient (13 units)
Sources & references
Conversion factor (1 gerah = 0.3216985321 dr) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Hydrographic Organization — Resolution on the Nautical Mile
International authority that standardised the nautical mile at exactly 1852 m in 1929 — the value adopted worldwide for sea and air navigation.