A slug is an imperial mass unit.
Slugs to Grains Converter — slug to gr
Convert Slug (slug) to Grain (gr) using the exact conversion factor (1 slug = 225,218.3399 grain). See the formula, worked examples, and conversion table.
Slugs to Grains converter
Converter
Mass/Weight Converter
Convert SI mass, imperial weight, jewelry, atomic, and astronomy mass units.
Context values
Some unit families need one extra value for a physically accurate result.
A grain is exactly 64.79891 milligrams.
Result = input x 14.59390294 / 6.479891e-5.
Mass uses the kilogram as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Slugs to Grains
Weight conversions between Slug and Grain come up constantly in everyday commerce, shipping, and cooking, since US packaging is usually labeled in pounds while most of the rest of the world uses kilograms. Specifically: A slug is an imperial mass unit, and a grain is exactly 64.79891 milligrams.
Formula
grains = slugs × 225218.339895
This factor comes from each unit's defined relationship to the category's base unit: 1 slug equals 14.5939029372 base units, and 1 grain equals 0.00006479891 base units, so dividing one by the other gives the direct slug-to-grain factor of 225218.339895.
Simple example
1 slug × 225218.3399 = 225,218.3399 gr
1 slug = 225,218.3399 grains.
Real-world example
50 slug × 225218.3399 = 11,260,916.99 gr
50 slugs = 11,260,916.99 grains.
Conversion table
| Slug (slug) | Grain (gr) |
|---|---|
| 1 slug | 225,218.3399 gr |
| 5 slug | 1,126,091.699 gr |
| 10 slug | 2,252,183.399 gr |
| 25 slug | 5,630,458.497 gr |
| 50 slug | 11,260,916.99 gr |
| 100 slug | 22,521,833.99 gr |
Reverse conversion: Grain to Slug
1 gr × 0.000004440135739 = 0.0000044401 slug
1 grain = 0.0000044401 slugs.
slugs = grains × 0.0000044401357388
For a page dedicated to this direction, see Grain to Slug.
Understanding the Slug (slug)
A slug is an imperial mass unit.
Understanding the Grain (gr)
A grain is exactly 64.79891 milligrams.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grains are in 1 slug?
1 slug equals 225,218.3399 grains, using the exact defined conversion factor rather than an estimate.
How do I convert slug to grain?
Multiply the slug value by 225218.3399. The converter above does this instantly to whatever precision you set.
How do I convert grain back to slug?
Use the reverse factor: 1 grain equals 0.0000044401 slugs. You can also use the swap control in the converter above to flip the direction instantly.
What is a slug?
Slug (slug) is a unit of mass/weight.
What is a grain?
Grain (gr) is a unit of mass/weight.
Is the slug to grain conversion exact?
Yes. Both slug and grain are defined by fixed standards rather than physical artifacts, so the factor of 225218.3399 used above is exact to as many digits as you choose to display.