Mass and Weight · Unit Converter

Convert Stone (UK) to Ratti

Convert stones (uk) to rattis instantly. 1 stone (uk) = 52265.7874897119 ratti — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Ratti to Stone (UK) 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

Stone (UK)

What is a stone (uk)?

The UK stone (st) equals 14 pounds, about 6.35 kilograms.

Origin of the stone (uk)

From standardized market 'stones' once used for weighing goods.

Where it is used

Body weight in the United Kingdom and Ireland.

When and where it was developed

Fixed at 14 pounds by British statute in 1835.

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.

Stone (UK) 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 stones (uk) and rattis:

1 st = 52265.7874897119 ratti
1 ratti = 1.913297e-5 st

To convert stones (uk) to rattis, multiply the value in stones (uk) by 52265.7874897119. To reverse, multiply rattis by 1.913297e-5.

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 Stone (UK) converter for the reverse direction.

Step-by-step: convert stones (uk) to rattis

  1. Write down the value in stones (uk) (st).
  2. Multiply that value by the factor 52265.7874897119.
  3. The product is the equivalent value in rattis (ratti).
  4. To reverse, multiply the ratti value by 1.913297e-5.

Worked examples

Example 1 — Convert 1 st to ratti:
1 × 52265.7874897119 = 52265.7874897119 ratti

Example 2 — Convert 100 st to ratti:
100 × 52265.7874897119 = 5226578.748971194 ratti

Real-world example — Macroscopic to microscopic

One stone (uk) equals a million rattis. Optical engineers calculating coherence length compare macro-scale path lengths with micro-scale wavelength differences using exactly this conversion.

1 st × 52265.7874897119 = 52265.7874897119 ratti

Real-world example — Sub-meter precision

A 0.001-stone (uk) (1 mm) tolerance equals 1,000 rattis — useful for surface-finish specs, where macro-scale dimensions are given in the larger unit but feature roughness in the smaller.

0.001 st × 52265.7874897119 = 52.2657874897 ratti

Real-world example — Macro-to-micro scale comparison

2 stones (uk) of measurement converts to a very large number in rattis — useful in materials science when comparing bulk-sample dimensions to feature-level surface specs.

2 st × 52265.7874897119 = 104531.5749794239 ratti

Stone (UK) to Ratti conversion table

Standard reference values for converting stones (uk) to rattis:

Stone (UK) [st]Ratti [ratti]
0.01522.6578748971
0.15226.5787489712
152265.7874897119
2104531.5749794239
3156797.3624691358
4209063.1499588478
5261328.9374485597
10522657.8748971194
201045315.7497942388
301567973.6246913583
402090631.4995884777
502613289.374485597
1005226578.748971194
5002.613289e+7
10005.226579e+7

Frequently asked questions

How many rattis is 1 stone (uk)?
1 stone (uk) equals 52265.7874897119 ratti.
How do I convert stones (uk) to rattis?
Multiply the value in stones (uk) by 52265.7874897119 to get rattis.
How do I convert rattis back to stones (uk)?
Multiply the value in rattis by 1.913297e-5, or use the Ratti to Stone (UK) converter.
How many rattis is 100 stones (uk)?
100 stones (uk) equals 5226578.748971194 rattis, because 100 × 52265.7874897119 = 5226578.748971194.

Convert Stone (UK) to other weight units

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

Sources & references

Conversion factor (1 st = 52265.7874897119 ratti) verified against the following authoritative sources:

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