Mass and Weight · Unit Converter

Convert Nanogram to Momme

Convert nanograms to mommes instantly. 1 nanogram = 2.666667e-10 momme — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Momme to Nanogram 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

Nanogram

What is a nanogram?

A nanogram (ng) equals 10^-12 kilogram.

Origin of the nanogram

From the SI prefix 'nano-' (from Greek 'nanos', dwarf).

Where it is used

Molecular biology, forensics, and toxicology.

When and where it was developed

The nano- prefix entered the SI in 1960.

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.

Nanogram 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 nanograms and mommes:

1 ng = 2.666667e-10 mom
1 mom = 3.75e+9 ng

To convert nanograms to mommes, multiply the value in nanograms by 2.666667e-10. To reverse, multiply mommes by 3.75e+9.

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 Nanogram converter for the reverse direction.

Step-by-step: convert nanograms to mommes

  1. Write down the value in nanograms (ng).
  2. Multiply that value by the factor 2.666667e-10.
  3. The product is the equivalent value in mommes (mom).
  4. To reverse, multiply the momme value by 3.75e+9.

Worked examples

Example 1 — Convert 1 ng to mom:
1 × 2.666667e-10 = 2.666667e-10 mom

Example 2 — Convert 100 ng to mom:
100 × 2.666667e-10 = 2.666667e-8 mom

Real-world example — Sub-micron to millimeter

500,000 nanograms converts to a small everyday quantity in mommes — useful when relating optical-wavelength specifications to physical mounting hardware.

500000 ng × 2.666667e-10 = 0.0001333333 mom

Real-world example — From wavelengths to millimeter-scale objects

A value of one million nanograms sounds vast at the atomic scale but converts to a small everyday quantity in mommes — useful when relating optical-wavelength specifications to physical mounting hardware.

1000000 ng × 2.666667e-10 = 0.0002666667 mom

Nanogram to Momme conversion table

Standard reference values for converting nanograms to mommes:

Nanogram [ng]Momme [mom]
0.012.666667e-12
0.12.666667e-11
12.666667e-10
25.333333e-10
38e-10
41.066667e-9
51.333333e-9
102.666667e-9
205.333333e-9
308e-9
401.066667e-8
501.333333e-8
1002.666667e-8
5001.333333e-7
10002.666667e-7

Frequently asked questions

How many mommes is 1 nanogram?
1 nanogram equals 2.666667e-10 momme.
How do I convert nanograms to mommes?
Multiply the value in nanograms by 2.666667e-10 to get mommes.
How do I convert mommes back to nanograms?
Multiply the value in mommes by 3.75e+9, or use the Momme to Nanogram converter.
How many mommes is 100 nanograms?
100 nanograms equals 2.666667e-8 mommes, because 100 × 2.666667e-10 = 2.666667e-8.

Convert Nanogram to other weight units

Show all Nanogram conversions
Metric / SI (17 units)
Avoirdupois (15 units)
Troy & Apothecary (10 units)
Indian / South Asian (6 units)
Scientific / Atomic (9 units)
Astronomical (4 units)
Biblical / Ancient (14 units)
Force / Engineering (5 units)

Sources & references

Conversion factor (1 ng = 2.666667e-10 mom) verified against the following authoritative sources:

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