An avoirdupois dram is 1/16 ounce.
Drams to Long tons Converter — dr to long ton
Convert Dram (dr) to Long ton (long ton) using the exact conversion factor (1 dram = 0.0000017439 long ton). See the formula, worked examples, and conversion table.
Drams to Long tons 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 British long ton is 2,240 pounds.
Result = input x 0.001771845195 / 1016.046909.
Mass uses the kilogram as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Drams to Long tons
Weight conversions between Dram and Long ton 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: An avoirdupois dram is 1/16 ounce, and a British long ton is 2,240 pounds.
Formula
long tons = drams × 0.00000174386160714
This factor comes from each unit's defined relationship to the category's base unit: 1 dram equals 0.00177184519531 base units, and 1 long ton equals 1016.0469088 base units, so dividing one by the other gives the direct dram-to-long ton factor of 0.00000174386160714.
Simple example
1 dr × 0.000001743861607 = 0.0000017439 long ton
1 dram = 0.0000017439 long tons.
Real-world example
50 dr × 0.000001743861607 = 0.0000871931 long ton
50 drams = 0.0000871931 long tons.
Conversion table
| Dram (dr) | Long ton (long ton) |
|---|---|
| 1 dr | 0.0000017439 long ton |
| 5 dr | 0.0000087193 long ton |
| 10 dr | 0.0000174386 long ton |
| 25 dr | 0.0000435965 long ton |
| 50 dr | 0.0000871931 long ton |
| 100 dr | 0.0001743862 long ton |
Reverse conversion: Long ton to Dram
0.0000017439 long ton × 573440 = 1.000022016 dr
0.0000017439 long tons = 1.000022016 drams.
drams = long tons × 573440
For a page dedicated to this direction, see Long ton to Dram.
Understanding the Dram (dr)
An avoirdupois dram is 1/16 ounce.
Understanding the Long ton (long ton)
A British long ton is 2,240 pounds.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many long tons are in 1 dram?
1 dram equals 0.0000017439 long tons, using the exact defined conversion factor rather than an estimate.
How do I convert dram to long ton?
Multiply the dram value by 0.000001743861607. The converter above does this instantly to whatever precision you set.
How do I convert long ton back to dram?
Use the reverse factor: 1 long ton equals 573,440 drams. You can also use the swap control in the converter above to flip the direction instantly.
What is a dram?
Dram (dr) is a unit of mass/weight.
What is a long ton?
Long ton (long ton) is a unit of mass/weight.
Is the dram to long ton conversion exact?
Yes. Both dram and long ton are defined by fixed standards rather than physical artifacts, so the factor of 0.000001743861607 used above is exact to as many digits as you choose to display.