Mass and Weight · Unit Converter

Convert Dram (avoirdupois) to Earth's Mass

Convert drams (avoirdupois) to earth's mass instantly. 1 dram (avoirdupois) = 2.964935e-28 earth's mass — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Earth's 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.

Astronomical

Earth's Mass

What is a earth's mass?

The Earth mass (M(E)) is about 5.976E24 kg.

Origin of the earth's mass

Adopted as a convenient unit for the masses of terrestrial planets.

Where it is used

Astronomy and planetary science.

When and where it was developed

Refined over centuries since Cavendish first 'weighed the Earth' in 1798.

Dram (avoirdupois) to Earth's 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 earth's mass:

1 dr = 2.964935e-28 M⊕
1 M⊕ = 3.372755e+27 dr

To convert drams (avoirdupois) to earth's mass, multiply the value in drams (avoirdupois) by 2.964935e-28. To reverse, multiply earth's mass by 3.372755e+27.

How to use this converter

Type a value into the calculator. The result in earth's 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 Earth's Mass to Dram (avoirdupois) converter for the reverse direction.

Step-by-step: convert drams (avoirdupois) to earth's mass

  1. Write down the value in drams (avoirdupois) (dr).
  2. Multiply that value by the factor 2.964935e-28.
  3. The product is the equivalent value in earth's mass (M⊕).
  4. To reverse, multiply the earth's mass value by 3.372755e+27.

Worked examples

Example 1 — Convert 1 dr to M⊕:
1 × 2.964935e-28 = 2.964935e-28 M⊕

Example 2 — Convert 100 dr to M⊕:
100 × 2.964935e-28 = 2.964935e-26 M⊕

Real-world example — Ruler-scale measurements

A 30-dram (avoirdupois) school ruler converts cleanly to earth's mass — useful when buying a desk accessory from a retailer whose product specs use a different unit.

30 dr × 2.964935e-28 = 8.894805e-27 M⊕

Real-world example — Hardware-scale dimensions

A 10-dram (avoirdupois) fastener or component is about as long as a thumbnail. Mechanics and DIY enthusiasts convert between drams (avoirdupois) and earth's mass daily when mixing metric and imperial tools.

10 dr × 2.964935e-28 = 2.964935e-27 M⊕

Real-world example — Postcard and small-object dimensions

A postcard is about 5 drams (avoirdupois) wide. Converting to earth's mass is essential for international postal addressing forms that ask for dimensions in different units across countries.

5 dr × 2.964935e-28 = 1.482468e-27 M⊕

Dram (avoirdupois) to Earth's Mass conversion table

Standard reference values for converting drams (avoirdupois) to earth's mass:

Dram (avoirdupois) [dr]Earth's Mass [M⊕]
0.012.964935e-30
0.12.964935e-29
12.964935e-28
25.92987e-28
38.894805e-28
41.185974e-27
51.482468e-27
102.964935e-27
205.92987e-27
308.894805e-27
401.185974e-26
501.482468e-26
1002.964935e-26
5001.482468e-25
10002.964935e-25

Frequently asked questions

How many earth's mass is 1 dram (avoirdupois)?
1 dram (avoirdupois) equals 2.964935e-28 earth's mass.
How do I convert drams (avoirdupois) to earth's mass?
Multiply the value in drams (avoirdupois) by 2.964935e-28 to get earth's mass.
How do I convert earth's mass back to drams (avoirdupois)?
Multiply the value in earth's mass by 3.372755e+27, or use the Earth's Mass to Dram (avoirdupois) converter.
How many earth's mass is 100 drams (avoirdupois)?
100 drams (avoirdupois) equals 2.964935e-26 earth's mass, because 100 × 2.964935e-28 = 2.964935e-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 = 2.964935e-28 M⊕) verified against the following authoritative sources:

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