Mass and Weight · Unit Converter

Convert Point (1/100 carat) to Grain

Convert points (1/100 carat) to grains instantly. 1 point (1/100 carat) = 0.0308647215 grain — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Grain 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

Grain

What is a grain?

The grain (gr) equals 1/7000 of an avoirdupois pound, about 64.8 milligrams.

Origin of the grain

Based on the nominal mass of a single barley grain.

Where it is used

Ammunition and bullet mass, archery, and historical pharmacy.

When and where it was developed

Standardized through the English avoirdupois system and retained in 1959.

Point (1/100 carat) to Grain conversion formula

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

1 pt = 0.0308647215 gr
1 gr = 32.39945 pt

To convert points (1/100 carat) to grains, multiply the value in points (1/100 carat) by 0.0308647215. To reverse, multiply grains by 32.39945.

How to use this converter

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

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

  1. Write down the value in points (1/100 carat) (pt).
  2. Multiply that value by the factor 0.0308647215.
  3. The product is the equivalent value in grains (gr).
  4. To reverse, multiply the grain value by 32.39945.

Worked examples

Example 1 — Convert 1 pt to gr:
1 × 0.0308647215 = 0.0308647215 gr

Example 2 — Convert 100 pt to gr:
100 × 0.0308647215 = 3.0864721469 gr

Real-world example — Paper and film thicknesses

At the thickness of office paper (roughly 3 points (1/100 carat)), converting between sub-millimeter units is routine for packaging and printing buyers comparing quotes from metric and US suppliers.

3 pt × 0.0308647215 = 0.0925941644 gr

Real-world example — Plastic-film thickness alternates

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

150 pt × 0.0308647215 = 4.6297082204 gr

Real-world example — Hair-width scale measurements

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

70 pt × 0.0308647215 = 2.1605305028 gr

Point (1/100 carat) to Grain conversion table

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

Point (1/100 carat) [pt]Grain [gr]
0.010.0003086472
0.10.0030864721
10.0308647215
20.0617294429
30.0925941644
40.1234588859
50.1543236073
100.3086472147
200.6172944294
300.9259416441
401.2345888588
501.5432360735
1003.0864721469
50015.4323607345
100030.864721469

Frequently asked questions

How many grains is 1 point (1/100 carat)?
1 point (1/100 carat) equals 0.0308647215 grain.
How do I convert points (1/100 carat) to grains?
Multiply the value in points (1/100 carat) by 0.0308647215 to get grains.
How do I convert grains back to points (1/100 carat)?
Multiply the value in grains by 32.39945, or use the Grain to Point (1/100 carat) converter.
How many grains is 100 points (1/100 carat)?
100 points (1/100 carat) equals 3.0864721469 grains, because 100 × 0.0308647215 = 3.0864721469.

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 = 0.0308647215 gr) verified against the following authoritative sources:

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