Mass per volume density.
Stones per Tablespoon to Drams per Cup Converter — st/tbsp to dr/cup
Convert Stone per Tablespoon (st/tbsp) to Dram per Cup (dr/cup) using the exact conversion factor (1 stone per tablespoon = 57,344 dram per cup). See the formula, worked examples, and conversion table.
Stones per Tablespoon to Drams 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 429457.9155 / 7.489151707.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Stones per Tablespoon to Drams per Cup
Stone per Tablespoon and Dram 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
drams per cup = stones per tablespoon × 57344
This factor comes from each unit's defined relationship to the category's base unit: 1 stone per tablespoon equals 429457.915504 base units, and 1 dram per cup equals 7.48915170731 base units, so dividing one by the other gives the direct stone per tablespoon-to-dram per cup factor of 57344.
Simple example
1 st/tbsp × 57344 = 57,344 dr/cup
1 stone per tablespoon = 57,344 drams per cup.
Real-world example
1,000 st/tbsp × 57344 = 57,344,000 dr/cup
1,000 stones per tablespoon = 57,344,000 drams per cup.
Conversion table
| Stone per Tablespoon (st/tbsp) | Dram per Cup (dr/cup) |
|---|---|
| 0.1 st/tbsp | 5,734.4 dr/cup |
| 1 st/tbsp | 57,344 dr/cup |
| 10 st/tbsp | 573,440 dr/cup |
| 100 st/tbsp | 5,734,400 dr/cup |
| 1,000 st/tbsp | 57,344,000 dr/cup |
| 10,000 st/tbsp | 573,440,000 dr/cup |
Reverse conversion: Dram per Cup to Stone per Tablespoon
1 dr/cup × 0.00001743861607 = 0.0000174386 st/tbsp
1 dram per cup = 0.0000174386 stones per tablespoon.
stones per tablespoon = drams per cup × 0.0000174386160714
For a page dedicated to this direction, see Dram per Cup to Stone per Tablespoon.
Understanding the Stone per Tablespoon (st/tbsp)
Mass per volume density.
Understanding the Dram per Cup (dr/cup)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many drams per cup are in 1 stone per tablespoon?
1 stone per tablespoon equals 57,344 drams per cup, using the exact defined conversion factor rather than an estimate.
How do I convert stone per tablespoon to dram per cup?
Multiply the stone per tablespoon value by 57344. The converter above does this instantly to whatever precision you set.
How do I convert dram per cup back to stone per tablespoon?
Use the reverse factor: 1 dram per cup equals 0.0000174386 stones per tablespoon. You can also use the swap control in the converter above to flip the direction instantly.
What is a stone per tablespoon?
Stone per Tablespoon (st/tbsp) is a unit of density.
What is a dram per cup?
Dram per Cup (dr/cup) is a unit of density.
Is the stone per tablespoon to dram per cup conversion exact?
Yes. Both stone per tablespoon and dram per cup are defined by fixed standards rather than physical artifacts, so the factor of 57344 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.