Mass and Weight · Unit Converter

Convert Point (1/100 carat) to Ton (long, UK)

Convert points (1/100 carat) to tons (long, uk) instantly. 1 point (1/100 carat) = 1.968413e-9 ton (long, uk) — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Ton (long, 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

Ton (long, UK)

What is a ton (long, uk)?

The long (UK) ton equals 2,240 pounds, about 1,016 kilograms.

Origin of the ton (long, uk)

The British imperial ton, equal to 20 long hundredweight.

Where it is used

UK shipping and historical heavy industry.

When and where it was developed

Standardized within the British imperial system.

Point (1/100 carat) to Ton (long, UK) conversion formula

The relationship between points (1/100 carat) and tons (long, uk):

1 pt = 1.968413e-9 long tn
1 long tn = 5.080235e+8 pt

To convert points (1/100 carat) to tons (long, uk), multiply the value in points (1/100 carat) by 1.968413e-9. To reverse, multiply tons (long, uk) by 5.080235e+8.

How to use this converter

Type a value into the calculator. The result in tons (long, 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 Ton (long, UK) to Point (1/100 carat) converter for the reverse direction.

Step-by-step: convert points (1/100 carat) to tons (long, uk)

  1. Write down the value in points (1/100 carat) (pt).
  2. Multiply that value by the factor 1.968413e-9.
  3. The product is the equivalent value in tons (long, uk) (long tn).
  4. To reverse, multiply the ton (long, uk) value by 5.080235e+8.

Worked examples

Example 1 — Convert 1 pt to long tn:
1 × 1.968413e-9 = 1.968413e-9 long tn

Example 2 — Convert 100 pt to long tn:
100 × 1.968413e-9 = 1.968413e-7 long tn

Real-world example — Feature-scale to long-haul

One billion points (1/100 carat) equals exactly one ton (long, uk) — the conversion an optical-network engineer performs when totalling feature-level path lengths into a single long-haul fiber-link distance.

1e+9 pt × 1.968413e-9 = 1.9684130552 long tn

Real-world example — Fiber-optic link lengths

Converting from microscale points (1/100 carat) to the tons (long, uk) of a long-haul fiber link is the conversion an optical engineer performs when calculating attenuation per kilometre of fiber.

1e+9 pt × 1.968413e-9 = 1.9684130552 long tn

Point (1/100 carat) to Ton (long, UK) conversion table

Standard reference values for converting points (1/100 carat) to tons (long, uk):

Point (1/100 carat) [pt]Ton (long, UK) [long tn]
0.011.968413e-11
0.11.968413e-10
11.968413e-9
23.936826e-9
35.905239e-9
47.873652e-9
59.842065e-9
101.968413e-8
203.936826e-8
305.905239e-8
407.873652e-8
509.842065e-8
1001.968413e-7
5009.842065e-7
10001.968413e-6

Frequently asked questions

How many tons (long, uk) is 1 point (1/100 carat)?
1 point (1/100 carat) equals 1.968413e-9 ton (long, uk).
How do I convert points (1/100 carat) to tons (long, uk)?
Multiply the value in points (1/100 carat) by 1.968413e-9 to get tons (long, uk).
How do I convert tons (long, uk) back to points (1/100 carat)?
Multiply the value in tons (long, uk) by 5.080235e+8, or use the Ton (long, UK) to Point (1/100 carat) converter.
How many tons (long, uk) is 100 points (1/100 carat)?
100 points (1/100 carat) equals 1.968413e-7 tons (long, uk), because 100 × 1.968413e-9 = 1.968413e-7.

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 = 1.968413e-9 long tn) verified against the following authoritative sources:

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