Mass and Weight · Unit Converter

Convert Milligram to Scruple (apothecary)

Convert milligrams to scruples (apothecary) instantly. 1 milligram = 0.0007716179 scruple (apothecary) — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Scruple (apothecary) to Milligram 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

Milligram

What is a milligram?

A milligram (mg) equals one-millionth of a kilogram, or 0.001 gram.

Origin of the milligram

From the SI prefix 'milli-' (from Latin 'mille', thousand).

Where it is used

Standard for medicine dosing, nutrition labels, and fine jewelry.

When and where it was developed

Part of the original metric system of 1795.

Troy & Apothecary

Scruple (apothecary)

What is a scruple (apothecary)?

The apothecary scruple equals 20 grains, about 1.296 grams.

Origin of the scruple (apothecary)

From Latin 'scrupulus', a small sharp pebble used as a tiny weight.

Where it is used

Historical apothecary dosing of powders.

When and where it was developed

Part of the apothecaries' system used through the 19th century.

Milligram to Scruple (apothecary) conversion formula

The relationship between milligrams and scruples (apothecary):

1 mg = 0.0007716179 s ap
1 s ap = 1295.9782 mg

To convert milligrams to scruples (apothecary), multiply the value in milligrams by 0.0007716179. To reverse, multiply scruples (apothecary) by 1295.9782.

How to use this converter

Type a value into the calculator. The result in scruples (apothecary) updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Scruple (apothecary) to Milligram converter for the reverse direction.

Step-by-step: convert milligrams to scruples (apothecary)

  1. Write down the value in milligrams (mg).
  2. Multiply that value by the factor 0.0007716179.
  3. The product is the equivalent value in scruples (apothecary) (s ap).
  4. To reverse, multiply the scruple (apothecary) value by 1295.9782.

Worked examples

Example 1 — Convert 1 mg to s ap:
1 × 0.0007716179 = 0.0007716179 s ap

Example 2 — Convert 100 mg to s ap:
100 × 0.0007716179 = 0.0771617918 s ap

Real-world example — Packaging gauge

A 4-milligram plastic bag thickness is a common spec for grocery and freezer bags. Converting from milligrams to scruples (apothecary) is what packaging buyers do whenever they bridge US and metric supplier quotes.

4 mg × 0.0007716179 = 0.0030864717 s ap

Real-world example — Plastic film and laminate thickness

A 500-milligram sheet is a typical spec for ID-card laminates and film overlays. Converting to scruples (apothecary) aligns the value with the unit most CAD systems and material datasheets prefer.

500 mg × 0.0007716179 = 0.3858089588 s ap

Milligram to Scruple (apothecary) conversion table

Standard reference values for converting milligrams to scruples (apothecary):

Milligram [mg]Scruple (apothecary) [s ap]
0.017.716179e-6
0.17.716179e-5
10.0007716179
20.0015432358
30.0023148538
40.0030864717
50.0038580896
100.0077161792
200.0154323584
300.0231485375
400.0308647167
500.0385808959
1000.0771617918
5000.3858089588
10000.7716179176

Frequently asked questions

How many scruples (apothecary) is 1 milligram?
1 milligram equals 0.0007716179 scruple (apothecary).
How do I convert milligrams to scruples (apothecary)?
Multiply the value in milligrams by 0.0007716179 to get scruples (apothecary).
How do I convert scruples (apothecary) back to milligrams?
Multiply the value in scruples (apothecary) by 1295.9782, or use the Scruple (apothecary) to Milligram converter.
How many scruples (apothecary) is 100 milligrams?
100 milligrams equals 0.0771617918 scruples (apothecary), because 100 × 0.0007716179 = 0.0771617918.

Convert Milligram to other weight units

Show all Milligram conversions
Metric / SI (17 units)
Milligram to Attogram (ag) Milligram to Femtogram (fg) Milligram to Picogram (pg) Milligram to Nanogram (ng) Milligram to Microgram (µg) Milligram to Centigram (cg) Milligram to Decigram (dg) Milligram to Gram (g) Milligram to Dekagram (dag) Milligram to Hectogram (hg) Milligram to Kilogram (kg) Milligram to Quintal (metric) (q) Milligram to Metric Ton (t) Milligram to Gigagram (Gg) Milligram to Teragram (Tg) Milligram to Petagram (Pg) Milligram to Exagram (Eg)
Avoirdupois (15 units)
Milligram to Grain (gr) Milligram to Dram (avoirdupois) (dr) Milligram to Ounce (oz) Milligram to Pound (lb) Milligram to Clove (clove) Milligram to Stone (US) (st) Milligram to Stone (UK) (st) Milligram to Quarter (US) (qr) Milligram to Quarter (UK) (qr) Milligram to Hundredweight (US) (cwt) Milligram to Hundredweight (UK) (cwt) Milligram to Wey (wey) Milligram to Kilopound (kip) (kip) Milligram to Ton (short, US) (sh tn) Milligram to Ton (long, UK) (long tn)
Troy & Apothecary (10 units)
Milligram to Point (1/100 carat) (pt) Milligram to Carat (metric) (ct) Milligram to Scruple (apothecary) (s ap) Milligram to Pennyweight (dwt) Milligram to Momme (mom) Milligram to Mace (mace) Milligram to Dram (apothecary/troy) (dr ap) Milligram to Troy Ounce (oz t) Milligram to Tael (tael) Milligram to Pound (troy/apothecary) (lb t)
Indian / South Asian (6 units)
Milligram to Ratti (ratti) Milligram to Masha (masha) Milligram to Tola (tola) Milligram to Chittack (Chatank) (chittack) Milligram to Seer (Ser) (seer) Milligram to Maund (Mann) (maund)
Scientific / Atomic (9 units)
Milligram to Electron Mass (rest) (me) Milligram to MeV/c2 (MeV/c²) Milligram to Muon Mass (mµ) Milligram to Atomic Mass Unit (u) Milligram to Proton Mass (mp) Milligram to Neutron Mass (mn) Milligram to Deuteron Mass (md) Milligram to Carbon-12 Atom Mass (C-12) Milligram to Planck Mass (mP)
Astronomical (4 units)
Milligram to Lunar Mass (Moon) (M☾) Milligram to Earth's Mass (M⊕) Milligram to Jupiter Mass (MJ) Milligram to Sun's Mass (M☉)
Biblical / Ancient (14 units)
Milligram to Lepton (Biblical Roman) (lepton) Milligram to Quadrans (Biblical Roman) (quadrans) Milligram to Assarion (Biblical Roman) (assarion) Milligram to Gerah (Biblical Hebrew) (gerah) Milligram to Drachma (Biblical Greek) (drachma) Milligram to Denarius (Biblical Roman) (denarius) Milligram to Bekan (Biblical Hebrew) (bekah) Milligram to Didrachma (Biblical Greek) (didrachma) Milligram to Shekel (Biblical Hebrew) (shekel) Milligram to Tetradrachma (Biblical Greek) (tetra) Milligram to Mina (Biblical Greek) (mina) Milligram to Mina (Biblical Hebrew) (mina) Milligram to Talent (Biblical Greek) (talent) Milligram to Talent (Biblical Hebrew) (talent)
Force / Engineering (5 units)
Milligram to Poundal (pdl) Milligram to Ton (assay) (US) (AT) Milligram to Ton (assay) (UK) (AT) Milligram to Kilogram-force square second/meter (hyl) Milligram to Slug (slug)

Sources & references

Conversion factor (1 mg = 0.0007716179 s ap) verified against the following authoritative sources:

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