A grain is exactly 64.79891 milligrams.
Grains to US hundredweights Converter — gr to cwt
Convert Grain (gr) to US hundredweight (cwt) using the exact conversion factor (1 grain = 0.0000014286 us hundredweight). See the formula, worked examples, and conversion table.
Grains to US hundredweights 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 US short hundredweight is 100 pounds.
Result = input x 6.479891e-5 / 45.359237.
Mass uses the kilogram as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grains to US hundredweights
Weight conversions between Grain and US hundredweight 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 grain is exactly 64.79891 milligrams, and a US short hundredweight is 100 pounds.
Formula
us hundredweights = grains × 0.00000142857142857
This factor comes from each unit's defined relationship to the category's base unit: 1 grain equals 0.00006479891 base units, and 1 us hundredweight equals 45.359237 base units, so dividing one by the other gives the direct grain-to-us hundredweight factor of 0.00000142857142857.
Simple example
1 gr × 0.000001428571429 = 0.0000014286 cwt
1 grain = 0.0000014286 us hundredweights.
Real-world example
50 gr × 0.000001428571429 = 0.0000714286 cwt
50 grains = 0.0000714286 us hundredweights.
Conversion table
| Grain (gr) | US hundredweight (cwt) |
|---|---|
| 1 gr | 0.0000014286 cwt |
| 5 gr | 0.0000071429 cwt |
| 10 gr | 0.0000142857 cwt |
| 25 gr | 0.0000357143 cwt |
| 50 gr | 0.0000714286 cwt |
| 100 gr | 0.0001428571 cwt |
Reverse conversion: US hundredweight to Grain
0.0000014286 cwt × 700000 = 1.00002 gr
0.0000014286 us hundredweights = 1.00002 grains.
grains = us hundredweights × 700000
For a page dedicated to this direction, see US hundredweight to Grain.
Understanding the Grain (gr)
A grain is exactly 64.79891 milligrams.
Understanding the US hundredweight (cwt)
A US short hundredweight is 100 pounds.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many us hundredweights are in 1 grain?
1 grain equals 0.0000014286 us hundredweights, using the exact defined conversion factor rather than an estimate.
How do I convert grain to us hundredweight?
Multiply the grain value by 0.000001428571429. The converter above does this instantly to whatever precision you set.
How do I convert us hundredweight back to grain?
Use the reverse factor: 1 us hundredweight equals 700,000 grains. You can also use the swap control in the converter above to flip the direction instantly.
What is a grain?
Grain (gr) is a unit of mass/weight.
What is a us hundredweight?
US hundredweight (cwt) is a unit of mass/weight.
Is the grain to us hundredweight conversion exact?
Yes. Both grain and us hundredweight are defined by fixed standards rather than physical artifacts, so the factor of 0.000001428571429 used above is exact to as many digits as you choose to display.