Mass and Weight · Unit Converter

Convert Chittack (Chatank) to Femtogram

Convert chittacks (chatank) to femtograms instantly. 1 chittack (chatank) = 5.831902e+16 femtogram — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Femtogram 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.

Metric / SI

Femtogram

What is a femtogram?

A femtogram (fg) equals 10^-18 kilogram.

Origin of the femtogram

From the SI prefix 'femto-' (from Danish/Norwegian 'femten', fifteen).

Where it is used

Nanotechnology and high-sensitivity mass spectrometry.

When and where it was developed

The femto- prefix was adopted by the CGPM in 1975.

Chittack (Chatank) to Femtogram 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 femtograms:

1 chittack = 5.831902e+16 fg
1 fg = 1.714706e-17 chittack

To convert chittacks (chatank) to femtograms, multiply the value in chittacks (chatank) by 5.831902e+16. To reverse, multiply femtograms by 1.714706e-17.

How to use this converter

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

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

  1. Write down the value in chittacks (chatank) (chittack).
  2. Multiply that value by the factor 5.831902e+16.
  3. The product is the equivalent value in femtograms (fg).
  4. To reverse, multiply the femtogram value by 1.714706e-17.

Worked examples

Example 1 — Convert 1 chittack to fg:
1 × 5.831902e+16 = 5.831902e+16 fg

Example 2 — Convert 100 chittack to fg:
100 × 5.831902e+16 = 5.831902e+18 fg

Real-world example — Centimeter to wavelength scale

One chittack (chatank) equals 10 million femtograms. Physics curricula use this kind of conversion to relate everyday measurements to atomic and optical scales.

1 chittack × 5.831902e+16 = 5.831902e+16 fg

Real-world example — Small-scale to atomic-scale

One chittack (chatank) equals 10 million femtograms — useful for physics curricula that relate everyday measurements to atomic and optical scales.

1 chittack × 5.831902e+16 = 5.831902e+16 fg

Chittack (Chatank) to Femtogram conversion table

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

Chittack (Chatank) [chittack]Femtogram [fg]
0.015.831902e+14
0.15.831902e+15
15.831902e+16
21.16638e+17
31.749571e+17
42.332761e+17
52.915951e+17
105.831902e+17
201.16638e+18
301.749571e+18
402.332761e+18
502.915951e+18
1005.831902e+18
5002.915951e+19
10005.831902e+19

Frequently asked questions

How many femtograms is 1 chittack (chatank)?
1 chittack (chatank) equals 5.831902e+16 femtogram.
How do I convert chittacks (chatank) to femtograms?
Multiply the value in chittacks (chatank) by 5.831902e+16 to get femtograms.
How do I convert femtograms back to chittacks (chatank)?
Multiply the value in femtograms by 1.714706e-17, or use the Femtogram to Chittack (Chatank) converter.
How many femtograms is 100 chittacks (chatank)?
100 chittacks (chatank) equals 5.831902e+18 femtograms, because 100 × 5.831902e+16 = 5.831902e+18.

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 = 5.831902e+16 fg) verified against the following authoritative sources:

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