Mass and Weight · Unit Converter

Convert Dram (avoirdupois) to Neutron Mass

Convert drams (avoirdupois) to neutron mass instantly. 1 dram (avoirdupois) = 1.057863e+24 neutron mass — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Neutron Mass to Dram (avoirdupois) 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

Avoirdupois

Dram (avoirdupois)

What is a dram (avoirdupois)?

The avoirdupois dram (dr) equals one-sixteenth of an ounce, about 1.77 grams.

Origin of the dram (avoirdupois)

From Greek 'drachma' through Latin 'dragma'.

Where it is used

Historically pharmacy; today occasional cooking and firearms (powder) use.

When and where it was developed

Defined as 1/256 of the avoirdupois pound.

Scientific / Atomic

Neutron Mass

What is a neutron mass?

The neutron rest mass is about 1.6749E-27 kg, slightly more than the proton.

Origin of the neutron mass

The mass of the neutron, the neutral nucleon.

Where it is used

Nuclear physics and reactor science.

When and where it was developed

Determined after James Chadwick discovered the neutron in 1932.

Dram (avoirdupois) to Neutron Mass 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 drams (avoirdupois) and neutron mass:

1 dr = 1.057863e+24 mn
1 mn = 9.453019e-25 dr

To convert drams (avoirdupois) to neutron mass, multiply the value in drams (avoirdupois) by 1.057863e+24. To reverse, multiply neutron mass by 9.453019e-25.

How to use this converter

Type a value into the calculator. The result in neutron mass updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Neutron Mass to Dram (avoirdupois) converter for the reverse direction.

Step-by-step: convert drams (avoirdupois) to neutron mass

  1. Write down the value in drams (avoirdupois) (dr).
  2. Multiply that value by the factor 1.057863e+24.
  3. The product is the equivalent value in neutron mass (mn).
  4. To reverse, multiply the neutron mass value by 9.453019e-25.

Worked examples

Example 1 — Convert 1 dr to mn:
1 × 1.057863e+24 = 1.057863e+24 mn

Example 2 — Convert 100 dr to mn:
100 × 1.057863e+24 = 1.057863e+26 mn

Real-world example — Small-scale to atomic-scale

One dram (avoirdupois) equals 10 million neutron mass — useful for physics curricula that relate everyday measurements to atomic and optical scales.

1 dr × 1.057863e+24 = 1.057863e+24 mn

Real-world example — Centimeter to wavelength scale

One dram (avoirdupois) equals 10 million neutron mass. Physics curricula use this kind of conversion to relate everyday measurements to atomic and optical scales.

1 dr × 1.057863e+24 = 1.057863e+24 mn

Dram (avoirdupois) to Neutron Mass conversion table

Standard reference values for converting drams (avoirdupois) to neutron mass:

Dram (avoirdupois) [dr]Neutron Mass [mn]
0.011.057863e+22
0.11.057863e+23
11.057863e+24
22.115726e+24
33.173589e+24
44.231452e+24
55.289316e+24
101.057863e+25
202.115726e+25
303.173589e+25
404.231452e+25
505.289316e+25
1001.057863e+26
5005.289316e+26
10001.057863e+27

Frequently asked questions

How many neutron mass is 1 dram (avoirdupois)?
1 dram (avoirdupois) equals 1.057863e+24 neutron mass.
How do I convert drams (avoirdupois) to neutron mass?
Multiply the value in drams (avoirdupois) by 1.057863e+24 to get neutron mass.
How do I convert neutron mass back to drams (avoirdupois)?
Multiply the value in neutron mass by 9.453019e-25, or use the Neutron Mass to Dram (avoirdupois) converter.
How many neutron mass is 100 drams (avoirdupois)?
100 drams (avoirdupois) equals 1.057863e+26 neutron mass, because 100 × 1.057863e+24 = 1.057863e+26.

Convert Dram (avoirdupois) to other weight units

Show all Dram (avoirdupois) conversions
Metric / SI (18 units)
Dram (avoirdupois) to Attogram (ag) Dram (avoirdupois) to Femtogram (fg) Dram (avoirdupois) to Picogram (pg) Dram (avoirdupois) to Nanogram (ng) Dram (avoirdupois) to Microgram (µg) Dram (avoirdupois) to Milligram (mg) Dram (avoirdupois) to Centigram (cg) Dram (avoirdupois) to Decigram (dg) Dram (avoirdupois) to Gram (g) Dram (avoirdupois) to Dekagram (dag) Dram (avoirdupois) to Hectogram (hg) Dram (avoirdupois) to Kilogram (kg) Dram (avoirdupois) to Quintal (metric) (q) Dram (avoirdupois) to Metric Ton (t) Dram (avoirdupois) to Gigagram (Gg) Dram (avoirdupois) to Teragram (Tg) Dram (avoirdupois) to Petagram (Pg) Dram (avoirdupois) to Exagram (Eg)
Avoirdupois (14 units)
Dram (avoirdupois) to Grain (gr) Dram (avoirdupois) to Ounce (oz) Dram (avoirdupois) to Pound (lb) Dram (avoirdupois) to Clove (clove) Dram (avoirdupois) to Stone (US) (st) Dram (avoirdupois) to Stone (UK) (st) Dram (avoirdupois) to Quarter (US) (qr) Dram (avoirdupois) to Quarter (UK) (qr) Dram (avoirdupois) to Hundredweight (US) (cwt) Dram (avoirdupois) to Hundredweight (UK) (cwt) Dram (avoirdupois) to Wey (wey) Dram (avoirdupois) to Kilopound (kip) (kip) Dram (avoirdupois) to Ton (short, US) (sh tn) Dram (avoirdupois) to Ton (long, UK) (long tn)
Troy & Apothecary (10 units)
Dram (avoirdupois) to Point (1/100 carat) (pt) Dram (avoirdupois) to Carat (metric) (ct) Dram (avoirdupois) to Scruple (apothecary) (s ap) Dram (avoirdupois) to Pennyweight (dwt) Dram (avoirdupois) to Momme (mom) Dram (avoirdupois) to Mace (mace) Dram (avoirdupois) to Dram (apothecary/troy) (dr ap) Dram (avoirdupois) to Troy Ounce (oz t) Dram (avoirdupois) to Tael (tael) Dram (avoirdupois) to Pound (troy/apothecary) (lb t)
Indian / South Asian (6 units)
Dram (avoirdupois) to Ratti (ratti) Dram (avoirdupois) to Masha (masha) Dram (avoirdupois) to Tola (tola) Dram (avoirdupois) to Chittack (Chatank) (chittack) Dram (avoirdupois) to Seer (Ser) (seer) Dram (avoirdupois) to Maund (Mann) (maund)
Scientific / Atomic (9 units)
Dram (avoirdupois) to Electron Mass (rest) (me) Dram (avoirdupois) to MeV/c2 (MeV/c²) Dram (avoirdupois) to Muon Mass (mµ) Dram (avoirdupois) to Atomic Mass Unit (u) Dram (avoirdupois) to Proton Mass (mp) Dram (avoirdupois) to Neutron Mass (mn) Dram (avoirdupois) to Deuteron Mass (md) Dram (avoirdupois) to Carbon-12 Atom Mass (C-12) Dram (avoirdupois) to Planck Mass (mP)
Astronomical (4 units)
Dram (avoirdupois) to Lunar Mass (Moon) (M☾) Dram (avoirdupois) to Earth's Mass (M⊕) Dram (avoirdupois) to Jupiter Mass (MJ) Dram (avoirdupois) to Sun's Mass (M☉)
Biblical / Ancient (14 units)
Dram (avoirdupois) to Lepton (Biblical Roman) (lepton) Dram (avoirdupois) to Quadrans (Biblical Roman) (quadrans) Dram (avoirdupois) to Assarion (Biblical Roman) (assarion) Dram (avoirdupois) to Gerah (Biblical Hebrew) (gerah) Dram (avoirdupois) to Drachma (Biblical Greek) (drachma) Dram (avoirdupois) to Denarius (Biblical Roman) (denarius) Dram (avoirdupois) to Bekan (Biblical Hebrew) (bekah) Dram (avoirdupois) to Didrachma (Biblical Greek) (didrachma) Dram (avoirdupois) to Shekel (Biblical Hebrew) (shekel) Dram (avoirdupois) to Tetradrachma (Biblical Greek) (tetra) Dram (avoirdupois) to Mina (Biblical Greek) (mina) Dram (avoirdupois) to Mina (Biblical Hebrew) (mina) Dram (avoirdupois) to Talent (Biblical Greek) (talent) Dram (avoirdupois) to Talent (Biblical Hebrew) (talent)
Force / Engineering (5 units)
Dram (avoirdupois) to Poundal (pdl) Dram (avoirdupois) to Ton (assay) (US) (AT) Dram (avoirdupois) to Ton (assay) (UK) (AT) Dram (avoirdupois) to Kilogram-force square second/meter (hyl) Dram (avoirdupois) to Slug (slug)

Sources & references

Conversion factor (1 dr = 1.057863e+24 mn) verified against the following authoritative sources:

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