Mass and Weight · Unit Converter

Convert Ounce to Ratti

Convert ounces to rattis instantly. 1 ounce = 233.3294082305 ratti — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Ratti to Ounce 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

Ounce

What is a ounce?

The (avoirdupois) ounce (oz) equals one-sixteenth of a pound, about 28.35 grams.

Origin of the ounce

From Latin 'uncia', meaning a twelfth part.

Where it is used

US food portions, postal weights, and boxing weight classes.

When and where it was developed

Standardized as 1/16 of the international pound from 1959.

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.

Ounce to Ratti 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 ounces and rattis:

1 oz = 233.3294082305 ratti
1 ratti = 0.0042857864 oz

To convert ounces to rattis, multiply the value in ounces by 233.3294082305. To reverse, multiply rattis by 0.0042857864.

How to use this converter

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

Step-by-step: convert ounces to rattis

  1. Write down the value in ounces (oz).
  2. Multiply that value by the factor 233.3294082305.
  3. The product is the equivalent value in rattis (ratti).
  4. To reverse, multiply the ratti value by 0.0042857864.

Worked examples

Example 1 — Convert 1 oz to ratti:
1 × 233.3294082305 = 233.3294082305 ratti

Example 2 — Convert 100 oz to ratti:
100 × 233.3294082305 = 23332.9408230453 ratti

Real-world example — Adjacent metric sub-units

One ounce equals 1,000 rattis. Engineers move between these scales constantly: PCB feature sizes in the larger unit, wire-bond diameters in the smaller.

1 oz × 233.3294082305 = 233.3294082305 ratti

Real-world example — Adjacent small-scale precision

One ounce equals 1,000 rattis — 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 oz × 233.3294082305 = 233.3294082305 ratti

Ounce to Ratti conversion table

Standard reference values for converting ounces to rattis:

Ounce [oz]Ratti [ratti]
0.012.3332940823
0.123.332940823
1233.3294082305
2466.6588164609
3699.9882246914
4933.3176329218
51166.6470411523
102333.2940823045
204666.5881646091
306999.8822469136
409333.1763292181
5011666.4704115226
10023332.9408230453
500116664.7041152263
1000233329.4082304527

Frequently asked questions

How many rattis is 1 ounce?
1 ounce equals 233.3294082305 ratti.
How do I convert ounces to rattis?
Multiply the value in ounces by 233.3294082305 to get rattis.
How do I convert rattis back to ounces?
Multiply the value in rattis by 0.0042857864, or use the Ratti to Ounce converter.
How many rattis is 100 ounces?
100 ounces equals 23332.9408230453 rattis, because 100 × 233.3294082305 = 23332.9408230453.

Convert Ounce to other weight units

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

Sources & references

Conversion factor (1 oz = 233.3294082305 ratti) verified against the following authoritative sources:

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