Convert Momme to Milligram
Convert mommes to milligrams instantly. 1 momme = 3750 milligram — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Milligram to Momme converter for the reverse conversion.
Units explained
Momme
The momme (mom) equals 3.75 grams.
A traditional Japanese mass unit (Japanese 'monme').
Pearls, and as the standard weight grade for silk fabric.
Part of the traditional Japanese shakkanho system.
Milligram
A milligram (mg) equals one-millionth of a kilogram, or 0.001 gram.
From the SI prefix 'milli-' (from Latin 'mille', thousand).
Standard for medicine dosing, nutrition labels, and fine jewelry.
Part of the original metric system of 1795.
Momme to Milligram 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 mommes and milligrams:
To convert mommes to milligrams, multiply the value in mommes by 3750. To reverse, multiply milligrams by 0.0002666667.
How to use this converter
Type a value into the calculator. The result in milligrams updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Milligram to Momme converter for the reverse direction.
Step-by-step: convert mommes to milligrams
- Write down the value in mommes (mom).
- Multiply that value by the factor 3750.
- The product is the equivalent value in milligrams (mg).
- To reverse, multiply the milligram value by 0.0002666667.
Worked examples
Example 1 — Convert 1 mom to mg:
1 × 3750 = 3750 mg
Example 2 — Convert 100 mom to mg:
100 × 3750 = 375000 mg
Real-world example — Adjacent small-scale precision
One momme equals 1,000 milligrams — the standard sub-millimeter precision conversion that materials engineers use whenever they switch between bulk material thickness specs (larger unit) and surface-finish characteristics (smaller unit).
1 mom × 3750 = 3750 mg
Real-world example — Adjacent metric sub-units
One momme equals 1,000 milligrams. Engineers move between these scales constantly: PCB feature sizes in the larger unit, wire-bond diameters in the smaller.
1 mom × 3750 = 3750 mg
Momme to Milligram conversion table
Standard reference values for converting mommes to milligrams:
| Momme [mom] | Milligram [mg] |
|---|---|
| 0.01 | 37.5 |
| 0.1 | 375 |
| 1 | 3750 |
| 2 | 7500 |
| 3 | 11250 |
| 4 | 15000 |
| 5 | 18750 |
| 10 | 37500 |
| 20 | 75000 |
| 30 | 112500 |
| 40 | 150000 |
| 50 | 187500 |
| 100 | 375000 |
| 500 | 1875000 |
| 1000 | 3750000 |
Frequently asked questions
How many milligrams is 1 momme?
How do I convert mommes to milligrams?
How do I convert milligrams back to mommes?
How many milligrams is 100 mommes?
Popular weight unit conversions
Convert Momme to other weight units
Show all Momme conversions
Metric / SI (18 units)
Avoirdupois (15 units)
Troy & Apothecary (9 units)
Indian / South Asian (6 units)
Scientific / Atomic (9 units)
Astronomical (4 units)
Biblical / Ancient (14 units)
Sources & references
Conversion factor (1 mom = 3750 mg) 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 Astronomical Union — System of Astronomical Constants
The IAU defines astronomical units including the AU (149597870700 m exactly) light-year and parsec used in astronomy and astrophysics.