Mass and Weight · Unit Converter

Convert Point (1/100 carat) to Stone (UK)

Convert points (1/100 carat) to stones (uk) instantly. 1 point (1/100 carat) = 3.149461e-7 stone (uk) — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Stone (UK) to Point (1/100 carat) 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

Troy & Apothecary

Point (1/100 carat)

What is a point (1/100 carat)?

A point equals one-hundredth of a carat, or 2 milligrams.

Origin of the point (1/100 carat)

A subdivision of the metric carat for very small stones.

Where it is used

The diamond trade, for sub-carat stones.

When and where it was developed

Adopted alongside the metric carat in the 20th-century gem trade.

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.

Point (1/100 carat) to Stone (UK) conversion formula

The relationship between points (1/100 carat) and stones (uk):

1 pt = 3.149461e-7 st
1 st = 3175146.5900000008 pt

To convert points (1/100 carat) to stones (uk), multiply the value in points (1/100 carat) by 3.149461e-7. To reverse, multiply stones (uk) by 3175146.5900000008.

How to use this converter

Type a value into the calculator. The result in stones (uk) updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Stone (UK) to Point (1/100 carat) converter for the reverse direction.

Step-by-step: convert points (1/100 carat) to stones (uk)

  1. Write down the value in points (1/100 carat) (pt).
  2. Multiply that value by the factor 3.149461e-7.
  3. The product is the equivalent value in stones (uk) (st).
  4. To reverse, multiply the stone (uk) value by 3175146.5900000008.

Worked examples

Example 1 — Convert 1 pt to st:
1 × 3.149461e-7 = 3.149461e-7 st

Example 2 — Convert 100 pt to st:
100 × 3.149461e-7 = 3.149461e-5 st

Real-world example — Macro-scale buildup

A million points (1/100 carat) equals exactly one stone (uk) — the conversion that bridges microscale features and macroscale objects in microfluidic, biomedical, and semiconductor packaging design.

1000000 pt × 3.149461e-7 = 0.3149460888 st

Real-world example — Quarter-meter measurement reference

A 250,000-point (1/100 carat) length equals 0.25 stones (uk) — useful for comparing supply-chain spec sheets where some lengths are quoted in the smaller unit and some in the larger.

250000 pt × 3.149461e-7 = 0.0787365222 st

Real-world example — From microscopic to macroscopic

A million points (1/100 carat) equals exactly one stone (uk). This kind of conversion appears in microfluidics, where total channel length is given in stones (uk) but feature widths are in points (1/100 carat).

1000000 pt × 3.149461e-7 = 0.3149460888 st

Point (1/100 carat) to Stone (UK) conversion table

Standard reference values for converting points (1/100 carat) to stones (uk):

Point (1/100 carat) [pt]Stone (UK) [st]
0.013.149461e-9
0.13.149461e-8
13.149461e-7
26.298922e-7
39.448383e-7
41.259784e-6
51.57473e-6
103.149461e-6
206.298922e-6
309.448383e-6
401.259784e-5
501.57473e-5
1003.149461e-5
5000.000157473
10000.0003149461

Frequently asked questions

How many stones (uk) is 1 point (1/100 carat)?
1 point (1/100 carat) equals 3.149461e-7 stone (uk).
How do I convert points (1/100 carat) to stones (uk)?
Multiply the value in points (1/100 carat) by 3.149461e-7 to get stones (uk).
How do I convert stones (uk) back to points (1/100 carat)?
Multiply the value in stones (uk) by 3175146.5900000008, or use the Stone (UK) to Point (1/100 carat) converter.
How many stones (uk) is 100 points (1/100 carat)?
100 points (1/100 carat) equals 3.149461e-5 stones (uk), because 100 × 3.149461e-7 = 3.149461e-5.

Convert Point (1/100 carat) to other weight units

Show all Point (1/100 carat) conversions
Metric / SI (18 units)
Point (1/100 carat) to Attogram (ag) Point (1/100 carat) to Femtogram (fg) Point (1/100 carat) to Picogram (pg) Point (1/100 carat) to Nanogram (ng) Point (1/100 carat) to Microgram (µg) Point (1/100 carat) to Milligram (mg) Point (1/100 carat) to Centigram (cg) Point (1/100 carat) to Decigram (dg) Point (1/100 carat) to Gram (g) Point (1/100 carat) to Dekagram (dag) Point (1/100 carat) to Hectogram (hg) Point (1/100 carat) to Kilogram (kg) Point (1/100 carat) to Quintal (metric) (q) Point (1/100 carat) to Metric Ton (t) Point (1/100 carat) to Gigagram (Gg) Point (1/100 carat) to Teragram (Tg) Point (1/100 carat) to Petagram (Pg) Point (1/100 carat) to Exagram (Eg)
Avoirdupois (15 units)
Point (1/100 carat) to Grain (gr) Point (1/100 carat) to Dram (avoirdupois) (dr) Point (1/100 carat) to Ounce (oz) Point (1/100 carat) to Pound (lb) Point (1/100 carat) to Clove (clove) Point (1/100 carat) to Stone (US) (st) Point (1/100 carat) to Stone (UK) (st) Point (1/100 carat) to Quarter (US) (qr) Point (1/100 carat) to Quarter (UK) (qr) Point (1/100 carat) to Hundredweight (US) (cwt) Point (1/100 carat) to Hundredweight (UK) (cwt) Point (1/100 carat) to Wey (wey) Point (1/100 carat) to Kilopound (kip) (kip) Point (1/100 carat) to Ton (short, US) (sh tn) Point (1/100 carat) to Ton (long, UK) (long tn)
Troy & Apothecary (9 units)
Point (1/100 carat) to Carat (metric) (ct) Point (1/100 carat) to Scruple (apothecary) (s ap) Point (1/100 carat) to Pennyweight (dwt) Point (1/100 carat) to Momme (mom) Point (1/100 carat) to Mace (mace) Point (1/100 carat) to Dram (apothecary/troy) (dr ap) Point (1/100 carat) to Troy Ounce (oz t) Point (1/100 carat) to Tael (tael) Point (1/100 carat) to Pound (troy/apothecary) (lb t)
Indian / South Asian (6 units)
Point (1/100 carat) to Ratti (ratti) Point (1/100 carat) to Masha (masha) Point (1/100 carat) to Tola (tola) Point (1/100 carat) to Chittack (Chatank) (chittack) Point (1/100 carat) to Seer (Ser) (seer) Point (1/100 carat) to Maund (Mann) (maund)
Scientific / Atomic (9 units)
Point (1/100 carat) to Electron Mass (rest) (me) Point (1/100 carat) to MeV/c2 (MeV/c²) Point (1/100 carat) to Muon Mass (mµ) Point (1/100 carat) to Atomic Mass Unit (u) Point (1/100 carat) to Proton Mass (mp) Point (1/100 carat) to Neutron Mass (mn) Point (1/100 carat) to Deuteron Mass (md) Point (1/100 carat) to Carbon-12 Atom Mass (C-12) Point (1/100 carat) to Planck Mass (mP)
Astronomical (4 units)
Point (1/100 carat) to Lunar Mass (Moon) (M☾) Point (1/100 carat) to Earth's Mass (M⊕) Point (1/100 carat) to Jupiter Mass (MJ) Point (1/100 carat) to Sun's Mass (M☉)
Biblical / Ancient (14 units)
Point (1/100 carat) to Lepton (Biblical Roman) (lepton) Point (1/100 carat) to Quadrans (Biblical Roman) (quadrans) Point (1/100 carat) to Assarion (Biblical Roman) (assarion) Point (1/100 carat) to Gerah (Biblical Hebrew) (gerah) Point (1/100 carat) to Drachma (Biblical Greek) (drachma) Point (1/100 carat) to Denarius (Biblical Roman) (denarius) Point (1/100 carat) to Bekan (Biblical Hebrew) (bekah) Point (1/100 carat) to Didrachma (Biblical Greek) (didrachma) Point (1/100 carat) to Shekel (Biblical Hebrew) (shekel) Point (1/100 carat) to Tetradrachma (Biblical Greek) (tetra) Point (1/100 carat) to Mina (Biblical Greek) (mina) Point (1/100 carat) to Mina (Biblical Hebrew) (mina) Point (1/100 carat) to Talent (Biblical Greek) (talent) Point (1/100 carat) to Talent (Biblical Hebrew) (talent)
Force / Engineering (5 units)
Point (1/100 carat) to Poundal (pdl) Point (1/100 carat) to Ton (assay) (US) (AT) Point (1/100 carat) to Ton (assay) (UK) (AT) Point (1/100 carat) to Kilogram-force square second/meter (hyl) Point (1/100 carat) to Slug (slug)

Sources & references

Conversion factor (1 pt = 3.149461e-7 st) verified against the following authoritative sources:

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