Mass and Weight · Unit Converter

Convert Dram (avoirdupois) to Centigram

Convert drams (avoirdupois) to centigrams instantly. 1 dram (avoirdupois) = 177.18452 centigram — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Centigram 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.

Metric / SI

Centigram

What is a centigram?

A centigram (cg) equals 0.00001 kilogram, or 0.01 gram.

Origin of the centigram

From the SI prefix 'centi-' (from Latin 'centum', hundred).

Where it is used

Used in pharmacology and analytical chemistry.

When and where it was developed

Part of the original metric system of 1795.

Dram (avoirdupois) to Centigram conversion formula

The relationship between drams (avoirdupois) and centigrams:

1 dr = 177.18452 cg
1 cg = 0.0056438339 dr

To convert drams (avoirdupois) to centigrams, multiply the value in drams (avoirdupois) by 177.18452. To reverse, multiply centigrams by 0.0056438339.

How to use this converter

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

Step-by-step: convert drams (avoirdupois) to centigrams

  1. Write down the value in drams (avoirdupois) (dr).
  2. Multiply that value by the factor 177.18452.
  3. The product is the equivalent value in centigrams (cg).
  4. To reverse, multiply the centigram value by 0.0056438339.

Worked examples

Example 1 — Convert 1 dr to cg:
1 × 177.18452 = 177.18452 cg

Example 2 — Convert 100 dr to cg:
100 × 177.18452 = 17718.452 cg

Real-world example — Adjacent small-scale precision

One dram (avoirdupois) equals 1,000 centigrams — 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 × 177.18452 = 177.18452 cg

Real-world example — Adjacent metric sub-units

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

1 dr × 177.18452 = 177.18452 cg

Dram (avoirdupois) to Centigram conversion table

Standard reference values for converting drams (avoirdupois) to centigrams:

Dram (avoirdupois) [dr]Centigram [cg]
0.011.7718452
0.117.718452
1177.18452
2354.36904
3531.55356
4708.73808
5885.9226
101771.8452
203543.6904
305315.5356
407087.3808
508859.226
10017718.452
50088592.26
1000177184.52

Frequently asked questions

How many centigrams is 1 dram (avoirdupois)?
1 dram (avoirdupois) equals 177.18452 centigram.
How do I convert drams (avoirdupois) to centigrams?
Multiply the value in drams (avoirdupois) by 177.18452 to get centigrams.
How do I convert centigrams back to drams (avoirdupois)?
Multiply the value in centigrams by 0.0056438339, or use the Centigram to Dram (avoirdupois) converter.
How many centigrams is 100 drams (avoirdupois)?
100 drams (avoirdupois) equals 17718.452 centigrams, because 100 × 177.18452 = 17718.452.

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 = 177.18452 cg) verified against the following authoritative sources:

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