Mass and Weight · Unit Converter

Convert Pennyweight to Chittack (Chatank)

Convert pennyweights to chittacks (chatank) instantly. 1 pennyweight = 0.0266666655 chittack (chatank) — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Chittack (Chatank) to Pennyweight 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

Pennyweight

What is a pennyweight?

The pennyweight (dwt) equals one-twentieth of a troy ounce, 24 grains (about 1.555 g).

Origin of the pennyweight

From the mass of a medieval English silver penny; symbol dwt from 'denarius weight'.

Where it is used

Jewelry making and precious-metal scrap valuation in the US.

When and where it was developed

Derived from the medieval English coinage system.

Indian / South Asian

Chittack (Chatank)

What is a chittack (chatank)?

The chittack (chatank) equals one-sixteenth of a seer, about 58.3 grams.

Origin of the chittack (chatank)

A traditional South Asian unit in the seer-based system.

Where it is used

Historical grocery and provisions weighing in India and Bangladesh.

When and where it was developed

Part of the pre-metric South Asian weight system.

Pennyweight to Chittack (Chatank) 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 pennyweights and chittacks (chatank):

1 dwt = 0.0266666655 chittack
1 chittack = 37.5000016075 dwt

To convert pennyweights to chittacks (chatank), multiply the value in pennyweights by 0.0266666655. To reverse, multiply chittacks (chatank) by 37.5000016075.

How to use this converter

Type a value into the calculator. The result in chittacks (chatank) updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Chittack (Chatank) to Pennyweight converter for the reverse direction.

Step-by-step: convert pennyweights to chittacks (chatank)

  1. Write down the value in pennyweights (dwt).
  2. Multiply that value by the factor 0.0266666655.
  3. The product is the equivalent value in chittacks (chatank) (chittack).
  4. To reverse, multiply the chittack (chatank) value by 37.5000016075.

Worked examples

Example 1 — Convert 1 dwt to chittack:
1 × 0.0266666655 = 0.0266666655 chittack

Example 2 — Convert 100 dwt to chittack:
100 × 0.0266666655 = 2.6666665524 chittack

Real-world example — Hardware-scale dimensions

A 10-pennyweight fastener or component is about as long as a thumbnail. Mechanics and DIY enthusiasts convert between pennyweights and chittacks (chatank) daily when mixing metric and imperial tools.

10 dwt × 0.0266666655 = 0.2666666552 chittack

Real-world example — Postcard and small-object dimensions

A postcard is about 5 pennyweights wide. Converting to chittacks (chatank) is essential for international postal addressing forms that ask for dimensions in different units across countries.

5 dwt × 0.0266666655 = 0.1333333276 chittack

Real-world example — Ruler-scale measurements

A 30-pennyweight school ruler converts cleanly to chittacks (chatank) — useful when buying a desk accessory from a retailer whose product specs use a different unit.

30 dwt × 0.0266666655 = 0.7999999657 chittack

Pennyweight to Chittack (Chatank) conversion table

Standard reference values for converting pennyweights to chittacks (chatank):

Pennyweight [dwt]Chittack (Chatank) [chittack]
0.010.0002666667
0.10.0026666666
10.0266666655
20.053333331
30.0799999966
40.1066666621
50.1333333276
100.2666666552
200.5333333105
300.7999999657
401.0666666209
501.3333332762
1002.6666665524
50013.3333327618
100026.6666655235

Frequently asked questions

How many chittacks (chatank) is 1 pennyweight?
1 pennyweight equals 0.0266666655 chittack (chatank).
How do I convert pennyweights to chittacks (chatank)?
Multiply the value in pennyweights by 0.0266666655 to get chittacks (chatank).
How do I convert chittacks (chatank) back to pennyweights?
Multiply the value in chittacks (chatank) by 37.5000016075, or use the Chittack (Chatank) to Pennyweight converter.
How many chittacks (chatank) is 100 pennyweights?
100 pennyweights equals 2.6666665524 chittacks (chatank), because 100 × 0.0266666655 = 2.6666665524.

Convert Pennyweight to other weight units

Show all Pennyweight conversions
Metric / SI (18 units)
Pennyweight to Attogram (ag) Pennyweight to Femtogram (fg) Pennyweight to Picogram (pg) Pennyweight to Nanogram (ng) Pennyweight to Microgram (µg) Pennyweight to Milligram (mg) Pennyweight to Centigram (cg) Pennyweight to Decigram (dg) Pennyweight to Gram (g) Pennyweight to Dekagram (dag) Pennyweight to Hectogram (hg) Pennyweight to Kilogram (kg) Pennyweight to Quintal (metric) (q) Pennyweight to Metric Ton (t) Pennyweight to Gigagram (Gg) Pennyweight to Teragram (Tg) Pennyweight to Petagram (Pg) Pennyweight to Exagram (Eg)
Avoirdupois (15 units)
Pennyweight to Grain (gr) Pennyweight to Dram (avoirdupois) (dr) Pennyweight to Ounce (oz) Pennyweight to Pound (lb) Pennyweight to Clove (clove) Pennyweight to Stone (US) (st) Pennyweight to Stone (UK) (st) Pennyweight to Quarter (US) (qr) Pennyweight to Quarter (UK) (qr) Pennyweight to Hundredweight (US) (cwt) Pennyweight to Hundredweight (UK) (cwt) Pennyweight to Wey (wey) Pennyweight to Kilopound (kip) (kip) Pennyweight to Ton (short, US) (sh tn) Pennyweight to Ton (long, UK) (long tn)
Troy & Apothecary (9 units)
Pennyweight to Point (1/100 carat) (pt) Pennyweight to Carat (metric) (ct) Pennyweight to Scruple (apothecary) (s ap) Pennyweight to Momme (mom) Pennyweight to Mace (mace) Pennyweight to Dram (apothecary/troy) (dr ap) Pennyweight to Troy Ounce (oz t) Pennyweight to Tael (tael) Pennyweight to Pound (troy/apothecary) (lb t)
Indian / South Asian (6 units)
Pennyweight to Ratti (ratti) Pennyweight to Masha (masha) Pennyweight to Tola (tola) Pennyweight to Chittack (Chatank) (chittack) Pennyweight to Seer (Ser) (seer) Pennyweight to Maund (Mann) (maund)
Scientific / Atomic (9 units)
Pennyweight to Electron Mass (rest) (me) Pennyweight to MeV/c2 (MeV/c²) Pennyweight to Muon Mass (mµ) Pennyweight to Atomic Mass Unit (u) Pennyweight to Proton Mass (mp) Pennyweight to Neutron Mass (mn) Pennyweight to Deuteron Mass (md) Pennyweight to Carbon-12 Atom Mass (C-12) Pennyweight to Planck Mass (mP)
Astronomical (4 units)
Pennyweight to Lunar Mass (Moon) (M☾) Pennyweight to Earth's Mass (M⊕) Pennyweight to Jupiter Mass (MJ) Pennyweight to Sun's Mass (M☉)
Biblical / Ancient (14 units)
Pennyweight to Lepton (Biblical Roman) (lepton) Pennyweight to Quadrans (Biblical Roman) (quadrans) Pennyweight to Assarion (Biblical Roman) (assarion) Pennyweight to Gerah (Biblical Hebrew) (gerah) Pennyweight to Drachma (Biblical Greek) (drachma) Pennyweight to Denarius (Biblical Roman) (denarius) Pennyweight to Bekan (Biblical Hebrew) (bekah) Pennyweight to Didrachma (Biblical Greek) (didrachma) Pennyweight to Shekel (Biblical Hebrew) (shekel) Pennyweight to Tetradrachma (Biblical Greek) (tetra) Pennyweight to Mina (Biblical Greek) (mina) Pennyweight to Mina (Biblical Hebrew) (mina) Pennyweight to Talent (Biblical Greek) (talent) Pennyweight to Talent (Biblical Hebrew) (talent)
Force / Engineering (5 units)
Pennyweight to Poundal (pdl) Pennyweight to Ton (assay) (US) (AT) Pennyweight to Ton (assay) (UK) (AT) Pennyweight to Kilogram-force square second/meter (hyl) Pennyweight to Slug (slug)

Sources & references

Conversion factor (1 dwt = 0.0266666655 chittack) verified against the following authoritative sources:

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