Mass and Weight · Unit Converter

Convert Ratti to Seer (Ser)

Convert rattis to seers (ser) instantly. 1 ratti = 0.0001302105 seer (ser) — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Seer (Ser) to Ratti 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

Ratti

What is a ratti?

The ratti equals about 0.1215 gram, the smallest traditional South Asian weight.

Origin of the ratti

Based on the seed of the Gunja plant (Abrus precatorius), or 'raktika' in Sanskrit.

Where it is used

Gemstones and gold in Indian and South Asian jewelry.

When and where it was developed

One of the oldest weight units of the Indian subcontinent, later standardized.

Indian / South Asian

Seer (Ser)

What is a seer (ser)?

The seer (ser) equals about 933 grams, or eighty tola (close to one kilogram).

Origin of the seer (ser)

From Hindi/Urdu 'ser', a major pre-metric trade weight.

Where it is used

Historical grain, milk, and produce trade across South Asia.

When and where it was developed

Standardized in British India; aligned near 1 kg after metrication.

Ratti to Seer (Ser) 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 rattis and seers (ser):

1 ratti = 0.0001302105 seer
1 seer = 7679.870781893 ratti

To convert rattis to seers (ser), multiply the value in rattis by 0.0001302105. To reverse, multiply seers (ser) by 7679.870781893.

How to use this converter

Type a value into the calculator. The result in seers (ser) updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Seer (Ser) to Ratti converter for the reverse direction.

Step-by-step: convert rattis to seers (ser)

  1. Write down the value in rattis (ratti).
  2. Multiply that value by the factor 0.0001302105.
  3. The product is the equivalent value in seers (ser) (seer).
  4. To reverse, multiply the seer (ser) value by 7679.870781893.

Worked examples

Example 1 — Convert 1 ratti to seer:
1 × 0.0001302105 = 0.0001302105 seer

Example 2 — Convert 100 ratti to seer:
100 × 0.0001302105 = 0.0130210524 seer

Real-world example — Quarter-meter measurement reference

A 250,000-ratti length equals 0.25 seers (ser) — useful for comparing supply-chain spec sheets where some lengths are quoted in the smaller unit and some in the larger.

250000 ratti × 0.0001302105 = 32.5526310403 seer

Real-world example — From microscopic to macroscopic

A million rattis equals exactly one seer (ser). This kind of conversion appears in microfluidics, where total channel length is given in seers (ser) but feature widths are in rattis.

1000000 ratti × 0.0001302105 = 130.2105241611 seer

Real-world example — Macro-scale buildup

A million rattis equals exactly one seer (ser) — the conversion that bridges microscale features and macroscale objects in microfluidic, biomedical, and semiconductor packaging design.

1000000 ratti × 0.0001302105 = 130.2105241611 seer

Ratti to Seer (Ser) conversion table

Standard reference values for converting rattis to seers (ser):

Ratti [ratti]Seer (Ser) [seer]
0.011.302105e-6
0.11.302105e-5
10.0001302105
20.000260421
30.0003906316
40.0005208421
50.0006510526
100.0013021052
200.0026042105
300.0039063157
400.005208421
500.0065105262
1000.0130210524
5000.0651052621
10000.1302105242

Frequently asked questions

How many seers (ser) is 1 ratti?
1 ratti equals 0.0001302105 seer (ser).
How do I convert rattis to seers (ser)?
Multiply the value in rattis by 0.0001302105 to get seers (ser).
How do I convert seers (ser) back to rattis?
Multiply the value in seers (ser) by 7679.870781893, or use the Seer (Ser) to Ratti converter.
How many seers (ser) is 100 rattis?
100 rattis equals 0.0130210524 seers (ser), because 100 × 0.0001302105 = 0.0130210524.

Convert Ratti to other weight units

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

Sources & references

Conversion factor (1 ratti = 0.0001302105 seer) verified against the following authoritative sources:

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