Mass and Weight · Unit Converter

Convert Grain to Chittack (Chatank)

Convert grains to chittacks (chatank) instantly. 1 grain = 0.0011111109 chittack (chatank) — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Chittack (Chatank) to Grain 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

Grain

What is a grain?

The grain (gr) equals 1/7000 of an avoirdupois pound, about 64.8 milligrams.

Origin of the grain

Based on the nominal mass of a single barley grain.

Where it is used

Ammunition and bullet mass, archery, and historical pharmacy.

When and where it was developed

Standardized through the English avoirdupois system and retained in 1959.

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.

Grain 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 grains and chittacks (chatank):

1 gr = 0.0011111109 chittack
1 chittack = 900.0001543236 gr

To convert grains to chittacks (chatank), multiply the value in grains by 0.0011111109. To reverse, multiply chittacks (chatank) by 900.0001543236.

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 Grain converter for the reverse direction.

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

  1. Write down the value in grains (gr).
  2. Multiply that value by the factor 0.0011111109.
  3. The product is the equivalent value in chittacks (chatank) (chittack).
  4. To reverse, multiply the chittack (chatank) value by 900.0001543236.

Worked examples

Example 1 — Convert 1 gr to chittack:
1 × 0.0011111109 = 0.0011111109 chittack

Example 2 — Convert 100 gr to chittack:
100 × 0.0011111109 = 0.1111110921 chittack

Real-world example — Plastic film and laminate thickness

A 500-grain sheet is a typical spec for ID-card laminates and film overlays. Converting to chittacks (chatank) aligns the value with the unit most CAD systems and material datasheets prefer.

500 gr × 0.0011111109 = 0.5555554603 chittack

Real-world example — Packaging gauge

A 4-grain plastic bag thickness is a common spec for grocery and freezer bags. Converting from grains to chittacks (chatank) is what packaging buyers do whenever they bridge US and metric supplier quotes.

4 gr × 0.0011111109 = 0.0044444437 chittack

Grain to Chittack (Chatank) conversion table

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

Grain [gr]Chittack (Chatank) [chittack]
0.011.111111e-5
0.10.0001111111
10.0011111109
20.0022222218
30.0033333328
40.0044444437
50.0055555546
100.0111111092
200.0222222184
300.0333333276
400.0444444368
500.055555546
1000.1111110921
5000.5555554603
10001.1111109206

Frequently asked questions

How many chittacks (chatank) is 1 grain?
1 grain equals 0.0011111109 chittack (chatank).
How do I convert grains to chittacks (chatank)?
Multiply the value in grains by 0.0011111109 to get chittacks (chatank).
How do I convert chittacks (chatank) back to grains?
Multiply the value in chittacks (chatank) by 900.0001543236, or use the Chittack (Chatank) to Grain converter.
How many chittacks (chatank) is 100 grains?
100 grains equals 0.1111110921 chittacks (chatank), because 100 × 0.0011111109 = 0.1111110921.

Convert Grain to other weight units

Show all Grain conversions
Metric / SI (18 units)
Grain to Attogram (ag) Grain to Femtogram (fg) Grain to Picogram (pg) Grain to Nanogram (ng) Grain to Microgram (µg) Grain to Milligram (mg) Grain to Centigram (cg) Grain to Decigram (dg) Grain to Gram (g) Grain to Dekagram (dag) Grain to Hectogram (hg) Grain to Kilogram (kg) Grain to Quintal (metric) (q) Grain to Metric Ton (t) Grain to Gigagram (Gg) Grain to Teragram (Tg) Grain to Petagram (Pg) Grain to Exagram (Eg)
Avoirdupois (14 units)
Grain to Dram (avoirdupois) (dr) Grain to Ounce (oz) Grain to Pound (lb) Grain to Clove (clove) Grain to Stone (US) (st) Grain to Stone (UK) (st) Grain to Quarter (US) (qr) Grain to Quarter (UK) (qr) Grain to Hundredweight (US) (cwt) Grain to Hundredweight (UK) (cwt) Grain to Wey (wey) Grain to Kilopound (kip) (kip) Grain to Ton (short, US) (sh tn) Grain to Ton (long, UK) (long tn)
Troy & Apothecary (10 units)
Grain to Point (1/100 carat) (pt) Grain to Carat (metric) (ct) Grain to Scruple (apothecary) (s ap) Grain to Pennyweight (dwt) Grain to Momme (mom) Grain to Mace (mace) Grain to Dram (apothecary/troy) (dr ap) Grain to Troy Ounce (oz t) Grain to Tael (tael) Grain to Pound (troy/apothecary) (lb t)
Indian / South Asian (6 units)
Grain to Ratti (ratti) Grain to Masha (masha) Grain to Tola (tola) Grain to Chittack (Chatank) (chittack) Grain to Seer (Ser) (seer) Grain to Maund (Mann) (maund)
Scientific / Atomic (9 units)
Grain to Electron Mass (rest) (me) Grain to MeV/c2 (MeV/c²) Grain to Muon Mass (mµ) Grain to Atomic Mass Unit (u) Grain to Proton Mass (mp) Grain to Neutron Mass (mn) Grain to Deuteron Mass (md) Grain to Carbon-12 Atom Mass (C-12) Grain to Planck Mass (mP)
Astronomical (4 units)
Grain to Lunar Mass (Moon) (M☾) Grain to Earth's Mass (M⊕) Grain to Jupiter Mass (MJ) Grain to Sun's Mass (M☉)
Biblical / Ancient (14 units)
Grain to Lepton (Biblical Roman) (lepton) Grain to Quadrans (Biblical Roman) (quadrans) Grain to Assarion (Biblical Roman) (assarion) Grain to Gerah (Biblical Hebrew) (gerah) Grain to Drachma (Biblical Greek) (drachma) Grain to Denarius (Biblical Roman) (denarius) Grain to Bekan (Biblical Hebrew) (bekah) Grain to Didrachma (Biblical Greek) (didrachma) Grain to Shekel (Biblical Hebrew) (shekel) Grain to Tetradrachma (Biblical Greek) (tetra) Grain to Mina (Biblical Greek) (mina) Grain to Mina (Biblical Hebrew) (mina) Grain to Talent (Biblical Greek) (talent) Grain to Talent (Biblical Hebrew) (talent)
Force / Engineering (5 units)
Grain to Poundal (pdl) Grain to Ton (assay) (US) (AT) Grain to Ton (assay) (UK) (AT) Grain to Kilogram-force square second/meter (hyl) Grain to Slug (slug)

Sources & references

Conversion factor (1 gr = 0.0011111109 chittack) verified against the following authoritative sources:

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