Mass and Weight · Unit Converter

Convert Carat (metric) to Point (1/100 carat)

Convert carats (metric) to points (1/100 carat) instantly. 1 carat (metric) = 100 point (1/100 carat) — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Point (1/100 carat) to Carat (metric) 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 June 10, 2026 Last reviewed June 10, 2026 Updated June 10, 2026

Units explained

Troy & Apothecary

Carat (metric)

What is a carat (metric)?

The metric carat (ct) equals exactly 200 milligrams (0.0002 kg).

Origin of the carat (metric)

From Arabic 'qirat' and Greek 'keration', the carob seed once used as a counterweight.

Where it is used

The worldwide standard for gemstone and diamond mass.

When and where it was developed

The metric carat was fixed at 200 mg internationally in 1907.

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.

Carat (metric) to Point (1/100 carat) conversion formula

The relationship between carats (metric) and points (1/100 carat):

1 ct = 100 pt

1 pt = 0.01 ct

To convert carats (metric) to points (1/100 carat), multiply the value in carats (metric) by 100. To reverse, multiply points (1/100 carat) by 0.01.

How to use this converter

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

Step-by-step: convert carats (metric) to points (1/100 carat)

Write down the value in carats (metric) (ct).
Multiply that value by the factor 100.
The product is the equivalent value in points (1/100 carat) (pt).
To reverse, multiply the point (1/100 carat) value by 0.01.

Worked examples

Example 1 — Convert 1 ct to pt:
1 × 100 = 100 pt

Example 2 — Convert 100 ct to pt:
100 × 100 = 10000 pt

Real-world example — Paper and film thicknesses

At the thickness of office paper (roughly 3 carats (metric)), converting between sub-millimeter units is routine for packaging and printing buyers comparing quotes from metric and US suppliers.

3 ct × 100 = 300 pt

Real-world example — Plastic-film thickness alternates

A 150-carat (metric) plastic film converts cleanly to points (1/100 carat) — useful for packaging buyers reconciling supplier datasheets across metric and US measurement systems.

150 ct × 100 = 15000 pt

Real-world example — Hair-width scale measurements

A 70-carat (metric) measurement (about the diameter of a human hair) is the kind of value materials engineers regularly express in adjacent micro-scale units like points (1/100 carat) for direct comparison across supplier datasheets.

70 ct × 100 = 7000 pt

Carat (metric) to Point (1/100 carat) conversion table

Standard reference values for converting carats (metric) to points (1/100 carat):

Carat (metric) [ct]	Point (1/100 carat) [pt]
0.01	1
0.1	10
1	100
2	200
3	300
4	400
5	500
10	1000
20	2000
30	3000
40	4000
50	5000
100	10000
500	50000
1000	100000

Frequently asked questions

How many points (1/100 carat) is 1 carat (metric)?

1 carat (metric) equals 100 point (1/100 carat).

How do I convert carats (metric) to points (1/100 carat)?

Multiply the value in carats (metric) by 100 to get points (1/100 carat).

How do I convert points (1/100 carat) back to carats (metric)?

Multiply the value in points (1/100 carat) by 0.01, or use the Point (1/100 carat) to Carat (metric) converter.

How many points (1/100 carat) is 100 carats (metric)?

100 carats (metric) equals 10000 points (1/100 carat), because 100 × 100 = 10000.

Convert Carat (metric) to other weight units

Show all Carat (metric) conversions

Metric / SI (18 units)

Avoirdupois (15 units)

Troy & Apothecary (9 units)

Carat (metric) to Point (1/100 carat) (pt) Carat (metric) to Scruple (apothecary) (s ap) Carat (metric) to Pennyweight (dwt) Carat (metric) to Momme (mom) Carat (metric) to Mace (mace) Carat (metric) to Dram (apothecary/troy) (dr ap) Carat (metric) to Troy Ounce (oz t) Carat (metric) to Tael (tael) Carat (metric) to Pound (troy/apothecary) (lb t)

Indian / South Asian (6 units)

Carat (metric) to Ratti (ratti) Carat (metric) to Masha (masha) Carat (metric) to Tola (tola) Carat (metric) to Chittack (Chatank) (chittack) Carat (metric) to Seer (Ser) (seer) Carat (metric) to Maund (Mann) (maund)

Scientific / Atomic (9 units)

Carat (metric) to Electron Mass (rest) (me) Carat (metric) to MeV/c2 (MeV/c²) Carat (metric) to Muon Mass (mµ) Carat (metric) to Atomic Mass Unit (u) Carat (metric) to Proton Mass (mp) Carat (metric) to Neutron Mass (mn) Carat (metric) to Deuteron Mass (md) Carat (metric) to Carbon-12 Atom Mass (C-12) Carat (metric) to Planck Mass (mP)

Astronomical (4 units)

Carat (metric) to Lunar Mass (Moon) (M☾) Carat (metric) to Earth's Mass (M⊕) Carat (metric) to Jupiter Mass (MJ) Carat (metric) to Sun's Mass (M☉)

Biblical / Ancient (14 units)

Carat (metric) to Lepton (Biblical Roman) (lepton) Carat (metric) to Quadrans (Biblical Roman) (quadrans) Carat (metric) to Assarion (Biblical Roman) (assarion) Carat (metric) to Gerah (Biblical Hebrew) (gerah) Carat (metric) to Drachma (Biblical Greek) (drachma) Carat (metric) to Denarius (Biblical Roman) (denarius) Carat (metric) to Bekan (Biblical Hebrew) (bekah) Carat (metric) to Didrachma (Biblical Greek) (didrachma) Carat (metric) to Shekel (Biblical Hebrew) (shekel) Carat (metric) to Tetradrachma (Biblical Greek) (tetra) Carat (metric) to Mina (Biblical Greek) (mina) Carat (metric) to Mina (Biblical Hebrew) (mina) Carat (metric) to Talent (Biblical Greek) (talent) Carat (metric) to Talent (Biblical Hebrew) (talent)

Force / Engineering (5 units)

Carat (metric) to Poundal (pdl) Carat (metric) to Ton (assay) (US) (AT) Carat (metric) to Ton (assay) (UK) (AT) Carat (metric) to Kilogram-force square second/meter (hyl) Carat (metric) to Slug (slug)

Sources & references

Conversion factor (1 ct = 100 pt) verified against the following authoritative sources:

BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
International Hydrographic Organization — Resolution on the Nautical Mile
International authority that standardised the nautical mile at exactly 1852 m in 1929 — the value adopted worldwide for sea and air navigation.

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