Mass and Weight · Unit Converter

Convert Chittack (Chatank) to Carat (metric)

Convert chittacks (chatank) to carats (metric) instantly. 1 chittack (chatank) = 291.5951 carat (metric) — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Carat (metric) to Chittack (Chatank) 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

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.

Troy & Apothecary

Carat (metric)

What is a carat (metric)?

The metric carat (ct) equals exactly 200 milligrams (0.0002 kg).

Origin of the carat (metric)

From Arabic 'qirat' and Greek 'keration', the carob seed once used as a counterweight.

Where it is used

The worldwide standard for gemstone and diamond mass.

When and where it was developed

The metric carat was fixed at 200 mg internationally in 1907.

Chittack (Chatank) to Carat (metric) 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 chittacks (chatank) and carats (metric):

1 chittack = 291.5951 ct
1 ct = 0.0034294129 chittack

To convert chittacks (chatank) to carats (metric), multiply the value in chittacks (chatank) by 291.5951. To reverse, multiply carats (metric) by 0.0034294129.

How to use this converter

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

Step-by-step: convert chittacks (chatank) to carats (metric)

  1. Write down the value in chittacks (chatank) (chittack).
  2. Multiply that value by the factor 291.5951.
  3. The product is the equivalent value in carats (metric) (ct).
  4. To reverse, multiply the carat (metric) value by 0.0034294129.

Worked examples

Example 1 — Convert 1 chittack to ct:
1 × 291.5951 = 291.5951 ct

Example 2 — Convert 100 chittack to ct:
100 × 291.5951 = 29159.51 ct

Real-world example — Adjacent small-scale precision

One chittack (chatank) equals 1,000 carats (metric) — 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 chittack × 291.5951 = 291.5951 ct

Real-world example — Adjacent metric sub-units

One chittack (chatank) equals 1,000 carats (metric). Engineers move between these scales constantly: PCB feature sizes in the larger unit, wire-bond diameters in the smaller.

1 chittack × 291.5951 = 291.5951 ct

Chittack (Chatank) to Carat (metric) conversion table

Standard reference values for converting chittacks (chatank) to carats (metric):

Chittack (Chatank) [chittack]Carat (metric) [ct]
0.012.915951
0.129.15951
1291.5951
2583.1902
3874.7853
41166.3804
51457.9755
102915.951
205831.902
308747.853
4011663.804
5014579.755
10029159.51
500145797.55
1000291595.1

Frequently asked questions

How many carats (metric) is 1 chittack (chatank)?
1 chittack (chatank) equals 291.5951 carat (metric).
How do I convert chittacks (chatank) to carats (metric)?
Multiply the value in chittacks (chatank) by 291.5951 to get carats (metric).
How do I convert carats (metric) back to chittacks (chatank)?
Multiply the value in carats (metric) by 0.0034294129, or use the Carat (metric) to Chittack (Chatank) converter.
How many carats (metric) is 100 chittacks (chatank)?
100 chittacks (chatank) equals 29159.51 carats (metric), because 100 × 291.5951 = 29159.51.

Convert Chittack (Chatank) to other weight units

Show all Chittack (Chatank) conversions
Metric / SI (18 units)
Chittack (Chatank) to Attogram (ag) Chittack (Chatank) to Femtogram (fg) Chittack (Chatank) to Picogram (pg) Chittack (Chatank) to Nanogram (ng) Chittack (Chatank) to Microgram (µg) Chittack (Chatank) to Milligram (mg) Chittack (Chatank) to Centigram (cg) Chittack (Chatank) to Decigram (dg) Chittack (Chatank) to Gram (g) Chittack (Chatank) to Dekagram (dag) Chittack (Chatank) to Hectogram (hg) Chittack (Chatank) to Kilogram (kg) Chittack (Chatank) to Quintal (metric) (q) Chittack (Chatank) to Metric Ton (t) Chittack (Chatank) to Gigagram (Gg) Chittack (Chatank) to Teragram (Tg) Chittack (Chatank) to Petagram (Pg) Chittack (Chatank) to Exagram (Eg)
Avoirdupois (15 units)
Chittack (Chatank) to Grain (gr) Chittack (Chatank) to Dram (avoirdupois) (dr) Chittack (Chatank) to Ounce (oz) Chittack (Chatank) to Pound (lb) Chittack (Chatank) to Clove (clove) Chittack (Chatank) to Stone (US) (st) Chittack (Chatank) to Stone (UK) (st) Chittack (Chatank) to Quarter (US) (qr) Chittack (Chatank) to Quarter (UK) (qr) Chittack (Chatank) to Hundredweight (US) (cwt) Chittack (Chatank) to Hundredweight (UK) (cwt) Chittack (Chatank) to Wey (wey) Chittack (Chatank) to Kilopound (kip) (kip) Chittack (Chatank) to Ton (short, US) (sh tn) Chittack (Chatank) to Ton (long, UK) (long tn)
Troy & Apothecary (10 units)
Chittack (Chatank) to Point (1/100 carat) (pt) Chittack (Chatank) to Carat (metric) (ct) Chittack (Chatank) to Scruple (apothecary) (s ap) Chittack (Chatank) to Pennyweight (dwt) Chittack (Chatank) to Momme (mom) Chittack (Chatank) to Mace (mace) Chittack (Chatank) to Dram (apothecary/troy) (dr ap) Chittack (Chatank) to Troy Ounce (oz t) Chittack (Chatank) to Tael (tael) Chittack (Chatank) to Pound (troy/apothecary) (lb t)
Indian / South Asian (5 units)
Chittack (Chatank) to Ratti (ratti) Chittack (Chatank) to Masha (masha) Chittack (Chatank) to Tola (tola) Chittack (Chatank) to Seer (Ser) (seer) Chittack (Chatank) to Maund (Mann) (maund)
Scientific / Atomic (9 units)
Chittack (Chatank) to Electron Mass (rest) (me) Chittack (Chatank) to MeV/c2 (MeV/c²) Chittack (Chatank) to Muon Mass (mµ) Chittack (Chatank) to Atomic Mass Unit (u) Chittack (Chatank) to Proton Mass (mp) Chittack (Chatank) to Neutron Mass (mn) Chittack (Chatank) to Deuteron Mass (md) Chittack (Chatank) to Carbon-12 Atom Mass (C-12) Chittack (Chatank) to Planck Mass (mP)
Astronomical (4 units)
Chittack (Chatank) to Lunar Mass (Moon) (M☾) Chittack (Chatank) to Earth's Mass (M⊕) Chittack (Chatank) to Jupiter Mass (MJ) Chittack (Chatank) to Sun's Mass (M☉)
Biblical / Ancient (14 units)
Chittack (Chatank) to Lepton (Biblical Roman) (lepton) Chittack (Chatank) to Quadrans (Biblical Roman) (quadrans) Chittack (Chatank) to Assarion (Biblical Roman) (assarion) Chittack (Chatank) to Gerah (Biblical Hebrew) (gerah) Chittack (Chatank) to Drachma (Biblical Greek) (drachma) Chittack (Chatank) to Denarius (Biblical Roman) (denarius) Chittack (Chatank) to Bekan (Biblical Hebrew) (bekah) Chittack (Chatank) to Didrachma (Biblical Greek) (didrachma) Chittack (Chatank) to Shekel (Biblical Hebrew) (shekel) Chittack (Chatank) to Tetradrachma (Biblical Greek) (tetra) Chittack (Chatank) to Mina (Biblical Greek) (mina) Chittack (Chatank) to Mina (Biblical Hebrew) (mina) Chittack (Chatank) to Talent (Biblical Greek) (talent) Chittack (Chatank) to Talent (Biblical Hebrew) (talent)
Force / Engineering (5 units)
Chittack (Chatank) to Poundal (pdl) Chittack (Chatank) to Ton (assay) (US) (AT) Chittack (Chatank) to Ton (assay) (UK) (AT) Chittack (Chatank) to Kilogram-force square second/meter (hyl) Chittack (Chatank) to Slug (slug)

Sources & references

Conversion factor (1 chittack = 291.5951 ct) verified against the following authoritative sources:

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