Grams to Monme (g to mon)

1 gram equals 0.2666666667 monme (rounded).

1 gram = 0.2666666667 monme

How to convert grams to monme

To convert grams to monme, multiply the number of grams by 0.2666666667. The factor is rounded to 10 significant digits. To go the other way, multiply monme by 3.75.

monme = grams × 0.2666666667

Example: 10 grams = 2.666666667 monme.

About these units

Gram (g)

Metric (SI)Current unit

One thousandth of a kilogram. The standard unit for food quantities and small objects.

A gram was once defined as a small drop of the natural world. The French National Convention of 1795 set it as the absolute weight of a volume of pure water equal to a cube one hundredth of a metre on each side, a cubic centimetre. The reference temperature was first the melting point of ice and was later changed to the temperature of maximum density of water, about 4 degrees Celsius. The word came into French as gramme, from Late Latin gramma, itself from the Greek for a letter or small mark; in Late Antiquity it meant about one twenty-fourth of an ounce.

The gram was the base unit of mass in the centimetre-gram-second system, but in 1960 the SI took the kilogram as its base unit, which made the gram one thousandth of it. That is why it appears in so many everyday places: it is the standard for non-liquid ingredients in cooking and shopping, and nutrition labels commonly list contents per 100 g. For a sense of scale, a small paper clip or a pen cap weighs about a gram, and a Japanese 1-yen coin is close to exactly that, while a US penny is around 2.5 g.

1 gram = 0.001 kilograms (exactly).

Sources: Wikipedia: Gram; Wikipedia: Kilogram

Monme (mon)

JapaneseTraditional unit (still used in some regions)

Exactly 3.75 g. A Japanese unit still used for pearls (where it is called momme) and for the weight of silk.

Monme takes its name from the weight of a single mon, the small copper coin of old Japan, so the word amounts to "mon weight". Edo-period merchants weighed silver in monme rather than counting it, and prices were quoted in silver monme until that system was abolished in 1868.

The Weights and Measures Act of 1891 fixed the monme at one thousandth of a kan, which is exactly 3.75 g, the figure used here. A modern Japanese 5 yen coin is often cited as weighing about one monme. Today the unit survives mainly in the pearl trade, where the spelling momme is common internationally and loose pearls and strands are weighed in it.

Silk is different: the textile momme is a separate convention of pounds per piece of cloth 45 inches wide and 100 yards long, so it should not be converted as a mass.

1 monme = 0.00375 kilograms (exactly).

Sources: Wikipedia: Japanese units of measurement; Japanese Wikipedia: Monme; Wikipedia: Pearl; Wikipedia: Units of textile measurement

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