Mass and Weight · Unit Converter

Convert Stone (UK) to Scruple (apothecary)

Convert stones (uk) to scruples (apothecary) instantly. 1 stone (uk) = 4900 scruple (apothecary) — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Scruple (apothecary) to Stone (UK) 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

Stone (UK)

What is a stone (uk)?

The UK stone (st) equals 14 pounds, about 6.35 kilograms.

Origin of the stone (uk)

From standardized market 'stones' once used for weighing goods.

Where it is used

Body weight in the United Kingdom and Ireland.

When and where it was developed

Fixed at 14 pounds by British statute in 1835.

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.

Stone (UK) to Scruple (apothecary) conversion formula

The relationship between stones (uk) and scruples (apothecary):

1 st = 4900 s ap
1 s ap = 0.0002040816 st

To convert stones (uk) to scruples (apothecary), multiply the value in stones (uk) by 4900. To reverse, multiply scruples (apothecary) by 0.0002040816.

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 Stone (UK) converter for the reverse direction.

Step-by-step: convert stones (uk) to scruples (apothecary)

  1. Write down the value in stones (uk) (st).
  2. Multiply that value by the factor 4900.
  3. The product is the equivalent value in scruples (apothecary) (s ap).
  4. To reverse, multiply the scruple (apothecary) value by 0.0002040816.

Worked examples

Example 1 — Convert 1 st to s ap:
1 × 4900 = 4900 s ap

Example 2 — Convert 100 st to s ap:
100 × 4900 = 490000 s ap

Real-world example — Pet and accessory dimensions

A 3-stone (uk) dog leash equals a tidy round value in scruples (apothecary). Pet-supply shopping frequently mixes the two units across product specifications.

3 st × 4900 = 14700 s ap

Real-world example — Fabric and tailoring

One stone (uk) of fabric converts to a value in scruples (apothecary) commonly used for seam allowances. Garment patterns frequently switch between the two units on a single instruction sheet.

1 st × 4900 = 4900 s ap

Real-world example — Body height conversion (reverse direction)

You measure 1.75 stones (uk) tall and need to fill in a gym membership form or medical record that asks for height in scruples (apothecary). This is the most-used everyday length conversion in metric-using countries.

1.75 st × 4900 = 8575 s ap

Stone (UK) to Scruple (apothecary) conversion table

Standard reference values for converting stones (uk) to scruples (apothecary):

Stone (UK) [st]Scruple (apothecary) [s ap]
0.0149
0.1490
14900
29800
314700
419600
524500
1049000
2098000
30147000
40196000
50245000
100490000
5002450000
10004900000

Frequently asked questions

How many scruples (apothecary) is 1 stone (uk)?
1 stone (uk) equals 4900 scruple (apothecary).
How do I convert stones (uk) to scruples (apothecary)?
Multiply the value in stones (uk) by 4900 to get scruples (apothecary).
How do I convert scruples (apothecary) back to stones (uk)?
Multiply the value in scruples (apothecary) by 0.0002040816, or use the Scruple (apothecary) to Stone (UK) converter.
How many scruples (apothecary) is 100 stones (uk)?
100 stones (uk) equals 490000 scruples (apothecary), because 100 × 4900 = 490000.

Convert Stone (UK) to other weight units

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

Sources & references

Conversion factor (1 st = 4900 s ap) verified against the following authoritative sources:

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