Carat to Slug Converter

Mass Converter

26 units available

Decimals:

From

To

1.370435e-5

1 ct = 1.370435e-5 slug

Formula:

slug = ct × 0.0000137044

With your value: 1 ct = 1.370435e-5 slug

How big is that?

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

Your value1.00 ct

Paperclip (5.0× your value)5.00 ct

AA battery (1.2e+2× your value)120 ct

Can of soda (2.0e+3× your value)1.95e+3 ct

Bag of sugar (5.0e+3× your value)5.00e+3 ct

House cat (2.3e+4× your value)2.25e+4 ct

Other Carat to Slug conversions

2 ct to slug 3 ct to slug 4 ct to slug 5 ct to slug 6 ct to slug 7 ct to slug 8 ct to slug

Carat to Slug Conversion Table

Carat (ct)	Slug (slug)
0.5	6.852177e-6
1	1.370435e-5
2	2.740871e-5
5	6.852177e-5
10	0.000137
15	0.000206
20	0.000274
25	0.000343
50	0.000685
100	0.00137
250	0.003426
500	0.006852
1000	0.013704

Slug to Carat Conversion Table

Slug (slug)	Carat (ct)
0.5	36,484.7575
1	72,969.515
2	145,939.03
5	364,847.575
10	729,695.15
15	1,094,542.725
20	1,459,390.3
25	1,824,237.875
50	3,648,475.75
100	7,296,951.5
250	18,242,378.75
500	36,484,757.5
1000	72,969,515

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.

Carat (ct)

Mass

Conventional value

The metric carat is exactly 200 mg, agreed internationally in 1907.

Source: NIST Handbook 44, Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

Slug (slug)

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 Carat to Slug

To convert from Carat (ct) to Slug (slug), multiply the value by 1.370435e-5.

Formula: slug = ct × 0.0000137044

Reverse: ct = slug × 72,969.515

Step-by-Step Example

Start with your value in Carat. For example: 5 ct
Multiply by the conversion factor: 5 x 1.370435e-5
The result is: 6.852177e-5 slug

About Carat

The carat equals 200 milligrams and is the standard unit for measuring gemstone weight.

Fun Fact: The word "carat" comes from the carob seed, which was used as a balance weight in ancient gem trading.

Common uses: gemstones, diamonds, jewelry.

About Slug

The slug is the unit of mass in the English engineering system: the mass accelerated at 1 ft/s² by 1 pound-force, about 14.5939 kg.

Common uses: aerospace engineering, US fluid mechanics.

Frequently Asked Questions

How many Slug are in 1 Carat?

There are exactly 1.370435e-5 Slug in 1 Carat. This means the conversion factor from Carat to Slug is 1.370435e-5.

What is the formula to convert Carat to Slug?

The formula to convert Carat to Slug is: slug = ct × 0.0000137044. For example, to convert 10 Carat to Slug, you would multiply 10 by 1.370435e-5.

What is a Carat?