Mass and Weight · Unit Converter

Convert Gram to Momme

Convert grams to mommes instantly. 1 gram = 0.2666666667 momme — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Momme to Gram 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

Metric / SI

Gram

What is a gram?

The gram (g) equals one-thousandth of a kilogram.

Origin of the gram

From Late Latin 'gramma', a small weight or scruple.

Where it is used

The everyday metric unit for food, medicine, and small objects.

When and where it was developed

Defined in 1795 as the mass of one cubic centimeter of water at melting point.

Troy & Apothecary

Momme

What is a momme?

The momme (mom) equals 3.75 grams.

Origin of the momme

A traditional Japanese mass unit (Japanese 'monme').

Where it is used

Pearls, and as the standard weight grade for silk fabric.

When and where it was developed

Part of the traditional Japanese shakkanho system.

Gram to Momme 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 grams and mommes:

1 g = 0.2666666667 mom
1 mom = 3.75 g

To convert grams to mommes, multiply the value in grams by 0.2666666667. To reverse, multiply mommes by 3.75.

How to use this converter

Type a value into the calculator. The result in mommes updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Momme to Gram converter for the reverse direction.

Step-by-step: convert grams to mommes

  1. Write down the value in grams (g).
  2. Multiply that value by the factor 0.2666666667.
  3. The product is the equivalent value in mommes (mom).
  4. To reverse, multiply the momme value by 3.75.

Worked examples

Example 1 — Convert 1 g to mom:
1 × 0.2666666667 = 0.2666666667 mom

Example 2 — Convert 100 g to mom:
100 × 0.2666666667 = 26.6666666667 mom

Real-world example — Postcard and small-object dimensions

A postcard is about 5 grams wide. Converting to mommes is essential for international postal addressing forms that ask for dimensions in different units across countries.

5 g × 0.2666666667 = 1.3333333333 mom

Real-world example — Ruler-scale measurements

A 30-gram school ruler converts cleanly to mommes — useful when buying a desk accessory from a retailer whose product specs use a different unit.

30 g × 0.2666666667 = 8 mom

Real-world example — Hardware-scale dimensions

A 10-gram fastener or component is about as long as a thumbnail. Mechanics and DIY enthusiasts convert between grams and mommes daily when mixing metric and imperial tools.

10 g × 0.2666666667 = 2.6666666667 mom

Gram to Momme conversion table

Standard reference values for converting grams to mommes:

Gram [g]Momme [mom]
0.010.0026666667
0.10.0266666667
10.2666666667
20.5333333333
30.8
41.0666666667
51.3333333333
102.6666666667
205.3333333333
308
4010.6666666667
5013.3333333333
10026.6666666667
500133.3333333333
1000266.6666666667

Frequently asked questions

How many mommes is 1 gram?
1 gram equals 0.2666666667 momme.
How do I convert grams to mommes?
Multiply the value in grams by 0.2666666667 to get mommes.
How do I convert mommes back to grams?
Multiply the value in mommes by 3.75, or use the Momme to Gram converter.
How many mommes is 100 grams?
100 grams equals 26.6666666667 mommes, because 100 × 0.2666666667 = 26.6666666667.

Convert Gram to other weight units

Show all Gram conversions
Metric / SI (17 units)
Gram to Attogram (ag) Gram to Femtogram (fg) Gram to Picogram (pg) Gram to Nanogram (ng) Gram to Microgram (µg) Gram to Milligram (mg) Gram to Centigram (cg) Gram to Decigram (dg) Gram to Dekagram (dag) Gram to Hectogram (hg) Gram to Kilogram (kg) Gram to Quintal (metric) (q) Gram to Metric Ton (t) Gram to Gigagram (Gg) Gram to Teragram (Tg) Gram to Petagram (Pg) Gram to Exagram (Eg)
Avoirdupois (15 units)
Gram to Grain (gr) Gram to Dram (avoirdupois) (dr) Gram to Ounce (oz) Gram to Pound (lb) Gram to Clove (clove) Gram to Stone (US) (st) Gram to Stone (UK) (st) Gram to Quarter (US) (qr) Gram to Quarter (UK) (qr) Gram to Hundredweight (US) (cwt) Gram to Hundredweight (UK) (cwt) Gram to Wey (wey) Gram to Kilopound (kip) (kip) Gram to Ton (short, US) (sh tn) Gram to Ton (long, UK) (long tn)
Troy & Apothecary (10 units)
Gram to Point (1/100 carat) (pt) Gram to Carat (metric) (ct) Gram to Scruple (apothecary) (s ap) Gram to Pennyweight (dwt) Gram to Momme (mom) Gram to Mace (mace) Gram to Dram (apothecary/troy) (dr ap) Gram to Troy Ounce (oz t) Gram to Tael (tael) Gram to Pound (troy/apothecary) (lb t)
Indian / South Asian (6 units)
Gram to Ratti (ratti) Gram to Masha (masha) Gram to Tola (tola) Gram to Chittack (Chatank) (chittack) Gram to Seer (Ser) (seer) Gram to Maund (Mann) (maund)
Scientific / Atomic (9 units)
Gram to Electron Mass (rest) (me) Gram to MeV/c2 (MeV/c²) Gram to Muon Mass (mµ) Gram to Atomic Mass Unit (u) Gram to Proton Mass (mp) Gram to Neutron Mass (mn) Gram to Deuteron Mass (md) Gram to Carbon-12 Atom Mass (C-12) Gram to Planck Mass (mP)
Astronomical (4 units)
Gram to Lunar Mass (Moon) (M☾) Gram to Earth's Mass (M⊕) Gram to Jupiter Mass (MJ) Gram to Sun's Mass (M☉)
Biblical / Ancient (14 units)
Gram to Lepton (Biblical Roman) (lepton) Gram to Quadrans (Biblical Roman) (quadrans) Gram to Assarion (Biblical Roman) (assarion) Gram to Gerah (Biblical Hebrew) (gerah) Gram to Drachma (Biblical Greek) (drachma) Gram to Denarius (Biblical Roman) (denarius) Gram to Bekan (Biblical Hebrew) (bekah) Gram to Didrachma (Biblical Greek) (didrachma) Gram to Shekel (Biblical Hebrew) (shekel) Gram to Tetradrachma (Biblical Greek) (tetra) Gram to Mina (Biblical Greek) (mina) Gram to Mina (Biblical Hebrew) (mina) Gram to Talent (Biblical Greek) (talent) Gram to Talent (Biblical Hebrew) (talent)
Force / Engineering (5 units)
Gram to Poundal (pdl) Gram to Ton (assay) (US) (AT) Gram to Ton (assay) (UK) (AT) Gram to Kilogram-force square second/meter (hyl) Gram to Slug (slug)

Sources & references

Conversion factor (1 g = 0.2666666667 mom) verified against the following authoritative sources:

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