Mass and Weight · Unit Converter

Convert Pennyweight to Quarter (US)

Convert pennyweights to quarters (us) instantly. 1 pennyweight = 0.0001371429 quarter (us) — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Quarter (US) to Pennyweight 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

Troy & Apothecary

Pennyweight

What is a pennyweight?

The pennyweight (dwt) equals one-twentieth of a troy ounce, 24 grains (about 1.555 g).

Origin of the pennyweight

From the mass of a medieval English silver penny; symbol dwt from 'denarius weight'.

Where it is used

Jewelry making and precious-metal scrap valuation in the US.

When and where it was developed

Derived from the medieval English coinage system.

Avoirdupois

Quarter (US)

What is a quarter (us)?

The US quarter equals one-fourth of a short hundredweight, 25 pounds (about 11.34 kg).

Origin of the quarter (us)

A 'quarter' of the US short hundredweight.

Where it is used

US agricultural and commodity weighing.

When and where it was developed

Defined within the US customary hundredweight system.

Pennyweight to Quarter (US) conversion formula

The relationship between pennyweights and quarters (us):

1 dwt = 0.0001371429 qr
1 qr = 7291.6668542127 dwt

To convert pennyweights to quarters (us), multiply the value in pennyweights by 0.0001371429. To reverse, multiply quarters (us) by 7291.6668542127.

How to use this converter

Type a value into the calculator. The result in quarters (us) updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Quarter (US) to Pennyweight converter for the reverse direction.

Step-by-step: convert pennyweights to quarters (us)

  1. Write down the value in pennyweights (dwt).
  2. Multiply that value by the factor 0.0001371429.
  3. The product is the equivalent value in quarters (us) (qr).
  4. To reverse, multiply the quarter (us) value by 7291.6668542127.

Worked examples

Example 1 — Convert 1 dwt to qr:
1 × 0.0001371429 = 0.0001371429 qr

Example 2 — Convert 100 dwt to qr:
100 × 0.0001371429 = 0.0137142854 qr

Real-world example — Postcard and small-object dimensions

A postcard is about 5 pennyweights wide. Converting to quarters (us) is essential for international postal addressing forms that ask for dimensions in different units across countries.

5 dwt × 0.0001371429 = 0.0006857143 qr

Real-world example — Ruler-scale measurements

A 30-pennyweight school ruler converts cleanly to quarters (us) — useful when buying a desk accessory from a retailer whose product specs use a different unit.

30 dwt × 0.0001371429 = 0.0041142856 qr

Real-world example — Hardware-scale dimensions

A 10-pennyweight fastener or component is about as long as a thumbnail. Mechanics and DIY enthusiasts convert between pennyweights and quarters (us) daily when mixing metric and imperial tools.

10 dwt × 0.0001371429 = 0.0013714285 qr

Pennyweight to Quarter (US) conversion table

Standard reference values for converting pennyweights to quarters (us):

Pennyweight [dwt]Quarter (US) [qr]
0.011.371429e-6
0.11.371429e-5
10.0001371429
20.0002742857
30.0004114286
40.0005485714
50.0006857143
100.0013714285
200.0027428571
300.0041142856
400.0054857141
500.0068571427
1000.0137142854
5000.0685714268
10000.1371428536

Frequently asked questions

How many quarters (us) is 1 pennyweight?
1 pennyweight equals 0.0001371429 quarter (us).
How do I convert pennyweights to quarters (us)?
Multiply the value in pennyweights by 0.0001371429 to get quarters (us).
How do I convert quarters (us) back to pennyweights?
Multiply the value in quarters (us) by 7291.6668542127, or use the Quarter (US) to Pennyweight converter.
How many quarters (us) is 100 pennyweights?
100 pennyweights equals 0.0137142854 quarters (us), because 100 × 0.0001371429 = 0.0137142854.

Convert Pennyweight to other weight units

Show all Pennyweight conversions
Metric / SI (18 units)
Pennyweight to Attogram (ag) Pennyweight to Femtogram (fg) Pennyweight to Picogram (pg) Pennyweight to Nanogram (ng) Pennyweight to Microgram (µg) Pennyweight to Milligram (mg) Pennyweight to Centigram (cg) Pennyweight to Decigram (dg) Pennyweight to Gram (g) Pennyweight to Dekagram (dag) Pennyweight to Hectogram (hg) Pennyweight to Kilogram (kg) Pennyweight to Quintal (metric) (q) Pennyweight to Metric Ton (t) Pennyweight to Gigagram (Gg) Pennyweight to Teragram (Tg) Pennyweight to Petagram (Pg) Pennyweight to Exagram (Eg)
Avoirdupois (15 units)
Pennyweight to Grain (gr) Pennyweight to Dram (avoirdupois) (dr) Pennyweight to Ounce (oz) Pennyweight to Pound (lb) Pennyweight to Clove (clove) Pennyweight to Stone (US) (st) Pennyweight to Stone (UK) (st) Pennyweight to Quarter (US) (qr) Pennyweight to Quarter (UK) (qr) Pennyweight to Hundredweight (US) (cwt) Pennyweight to Hundredweight (UK) (cwt) Pennyweight to Wey (wey) Pennyweight to Kilopound (kip) (kip) Pennyweight to Ton (short, US) (sh tn) Pennyweight to Ton (long, UK) (long tn)
Troy & Apothecary (9 units)
Pennyweight to Point (1/100 carat) (pt) Pennyweight to Carat (metric) (ct) Pennyweight to Scruple (apothecary) (s ap) Pennyweight to Momme (mom) Pennyweight to Mace (mace) Pennyweight to Dram (apothecary/troy) (dr ap) Pennyweight to Troy Ounce (oz t) Pennyweight to Tael (tael) Pennyweight to Pound (troy/apothecary) (lb t)
Indian / South Asian (6 units)
Pennyweight to Ratti (ratti) Pennyweight to Masha (masha) Pennyweight to Tola (tola) Pennyweight to Chittack (Chatank) (chittack) Pennyweight to Seer (Ser) (seer) Pennyweight to Maund (Mann) (maund)
Scientific / Atomic (9 units)
Pennyweight to Electron Mass (rest) (me) Pennyweight to MeV/c2 (MeV/c²) Pennyweight to Muon Mass (mµ) Pennyweight to Atomic Mass Unit (u) Pennyweight to Proton Mass (mp) Pennyweight to Neutron Mass (mn) Pennyweight to Deuteron Mass (md) Pennyweight to Carbon-12 Atom Mass (C-12) Pennyweight to Planck Mass (mP)
Astronomical (4 units)
Pennyweight to Lunar Mass (Moon) (M☾) Pennyweight to Earth's Mass (M⊕) Pennyweight to Jupiter Mass (MJ) Pennyweight to Sun's Mass (M☉)
Biblical / Ancient (14 units)
Pennyweight to Lepton (Biblical Roman) (lepton) Pennyweight to Quadrans (Biblical Roman) (quadrans) Pennyweight to Assarion (Biblical Roman) (assarion) Pennyweight to Gerah (Biblical Hebrew) (gerah) Pennyweight to Drachma (Biblical Greek) (drachma) Pennyweight to Denarius (Biblical Roman) (denarius) Pennyweight to Bekan (Biblical Hebrew) (bekah) Pennyweight to Didrachma (Biblical Greek) (didrachma) Pennyweight to Shekel (Biblical Hebrew) (shekel) Pennyweight to Tetradrachma (Biblical Greek) (tetra) Pennyweight to Mina (Biblical Greek) (mina) Pennyweight to Mina (Biblical Hebrew) (mina) Pennyweight to Talent (Biblical Greek) (talent) Pennyweight to Talent (Biblical Hebrew) (talent)
Force / Engineering (5 units)
Pennyweight to Poundal (pdl) Pennyweight to Ton (assay) (US) (AT) Pennyweight to Ton (assay) (UK) (AT) Pennyweight to Kilogram-force square second/meter (hyl) Pennyweight to Slug (slug)

Sources & references

Conversion factor (1 dwt = 0.0001371429 qr) verified against the following authoritative sources:

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