Scruple to Milligram Converter

Mass Converter

26 units available

Decimals:

From

To

1,295.9782

1 scr = 1,295.9782 mg

Formula:

mg = scr × 1,295.9782

With your value: 1 scr = 1,295.9782 mg

How big is that?

Everyday references on a logarithmic scale, all expressed in scruple so you can sanity-check the result.

Paperclip (1/1.3 your value)0.772 scr

Your value1.00 scr

AA battery (19× your value)18.5 scr

Can of soda (3.0e+2× your value)301 scr

Bag of sugar (7.7e+2× your value)772 scr

House cat (3.5e+3× your value)3.47e+3 scr

Other Scruple to Milligram conversions

2 scr to mg 3 scr to mg 4 scr to mg 5 scr to mg 6 scr to mg 7 scr to mg 8 scr to mg

Scruple to Milligram Conversion Table

Scruple (scr)	Milligram (mg)
0.5	647.9891
1	1,295.9782
2	2,591.9564
5	6,479.891
10	12,959.782
15	19,439.673
20	25,919.564
25	32,399.455
50	64,798.91
100	129,597.82
250	323,994.55
500	647,989.1
1000	1,295,978.2

Milligram to Scruple Conversion Table

Milligram (mg)	Scruple (scr)
0.5	0.000386
1	0.000772
2	0.001543
5	0.003858
10	0.007716
15	0.011574
20	0.015432
25	0.01929
50	0.038581
100	0.077162
250	0.192904
500	0.385809
1000	0.771618

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Scruple (scr)

Mass

Exact conversion

Traceable to the kilogram, defined by fixing the Planck constant at 6.626 070 15 × 10⁻³⁴ J·s. Avoirdupois masses derive from the 1959 international pound (0.453 592 37 kg exactly).

Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)

Bureau International des Poids et Mesures · Reviewed 2026-07-01

Milligram (mg)

Mass

Exact conversion

Traceable to the kilogram, defined by fixing the Planck constant at 6.626 070 15 × 10⁻³⁴ J·s. Avoirdupois masses derive from the 1959 international pound (0.453 592 37 kg exactly).

Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)

Bureau International des Poids et Mesures · Reviewed 2026-07-01

How to Convert Scruple to Milligram

To convert from Scruple (scr) to Milligram (mg), multiply the value by 1,295.9782.

Formula: mg = scr × 1,295.9782

Reverse: scr = mg × 0.0007716179

Step-by-Step Example

Start with your value in Scruple. For example: 5 scr
Multiply by the conversion factor: 5 x 1,295.9782
The result is: 6,479.891 mg

About Scruple

The scruple (scr) is a unit of mass and weight. One scruple equals 0.0012959782 kilograms. UnitConvertLab converts it against every other mass unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: mass calculations, engineering and science, education.

About Milligram

The milligram equals one thousandth of a gram and is the standard unit for drug dosage and nutrient quantities.

Common uses: medication dosage, nutrition labels, laboratory work.

Frequently Asked Questions

How many Milligram are in 1 Scruple?

There are exactly 1,295.9782 Milligram in 1 Scruple. This means the conversion factor from Scruple to Milligram is 1,295.9782.

What is the formula to convert Scruple to Milligram?

The formula to convert Scruple to Milligram is: mg = scr × 1,295.9782. For example, to convert 10 Scruple to Milligram, you would multiply 10 by 1,295.9782.

What is a Scruple?