Mass per volume density.
Slugs per Teaspoon to Long tons per Cup Converter — slug/tsp to long ton/cup
Convert Slug per Teaspoon (slug/tsp) to Long ton per Cup (long ton/cup) using the exact conversion factor (1 slug per teaspoon = 0.6894438976 long ton per cup). See the formula, worked examples, and conversion table.
Slugs per Teaspoon to Long tons per Cup converter
Converter
Density Converter
Convert thousands of mass-per-volume density combinations for science, engineering, agriculture, and fluids.
Context values
Some unit families need one extra value for a physically accurate result.
Mass per volume density.
Result = input x 2.96087139e+6 / 4.29457916e+6.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Slugs per Teaspoon to Long tons per Cup
Slug per Teaspoon and Long ton per Cup both measure density — mass per unit volume — a property used to identify materials, check manufacturing quality, and predict whether something floats or sinks. As a fixed reference point, water has a density of exactly 1000 kg/m³ (1 g/cm³, 1 g/mL) at its temperature of maximum density, which is why many density figures in science and engineering are quoted relative to water. Both are mass per volume density units.
Formula
long tons per cup = slugs per teaspoon × 0.689443897637
This factor comes from each unit's defined relationship to the category's base unit: 1 slug per teaspoon equals 2960871.39136 base units, and 1 long ton per cup equals 4294579.15504 base units, so dividing one by the other gives the direct slug per teaspoon-to-long ton per cup factor of 0.689443897637.
Simple example
1 slug/tsp × 0.6894438976 = 0.6894438976 long ton/cup
1 slug per teaspoon = 0.6894438976 long tons per cup.
Real-world example
1,000 slug/tsp × 0.6894438976 = 689.4438976 long ton/cup
1,000 slugs per teaspoon = 689.4438976 long tons per cup.
Conversion table
| Slug per Teaspoon (slug/tsp) | Long ton per Cup (long ton/cup) |
|---|---|
| 0.1 slug/tsp | 0.0689443898 long ton/cup |
| 1 slug/tsp | 0.6894438976 long ton/cup |
| 10 slug/tsp | 6.894438976 long ton/cup |
| 100 slug/tsp | 68.94438976 long ton/cup |
| 1,000 slug/tsp | 689.4438976 long ton/cup |
| 10,000 slug/tsp | 6,894.438976 long ton/cup |
Reverse conversion: Long ton per Cup to Slug per Teaspoon
0.6894438976 long ton/cup × 1.450444341 = 0.9999999999 slug/tsp
0.6894438976 long tons per cup = 0.9999999999 slugs per teaspoon.
slugs per teaspoon = long tons per cup × 1.45044434134
For a page dedicated to this direction, see Long ton per Cup to Slug per Teaspoon.
Understanding the Slug per Teaspoon (slug/tsp)
Mass per volume density.
Understanding the Long ton per Cup (long ton/cup)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many long tons per cup are in 1 slug per teaspoon?
1 slug per teaspoon equals 0.6894438976 long tons per cup, using the exact defined conversion factor rather than an estimate.
How do I convert slug per teaspoon to long ton per cup?
Multiply the slug per teaspoon value by 0.6894438976. The converter above does this instantly to whatever precision you set.
How do I convert long ton per cup back to slug per teaspoon?
Use the reverse factor: 1 long ton per cup equals 1.450444341 slugs per teaspoon. You can also use the swap control in the converter above to flip the direction instantly.
What is a slug per teaspoon?
Slug per Teaspoon (slug/tsp) is a unit of density.
What is a long ton per cup?
Long ton per Cup (long ton/cup) is a unit of density.
Is the slug per teaspoon to long ton per cup conversion exact?
Yes. Both slug per teaspoon and long ton per cup are defined by fixed standards rather than physical artifacts, so the factor of 0.6894438976 used above is exact to as many digits as you choose to display.
What's the difference between density and mass concentration?
Density is the mass of a pure substance or material per unit volume. Mass concentration is the mass of one component — like a dissolved solute — within a mixture's total volume. The two use the same kind of units but describe different physical situations.