Mass per volume density.
Pounds per Teaspoon to Stones per Tablespoon Converter — lb/tsp to st/tbsp
Convert Pound per Teaspoon (lb/tsp) to Stone per Tablespoon (st/tbsp) using the exact conversion factor (1 pound per teaspoon = 0.2142857143 stone per tablespoon). See the formula, worked examples, and conversion table.
Pounds per Teaspoon to Stones per Tablespoon 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 92026.69618 / 429457.9155.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Pounds per Teaspoon to Stones per Tablespoon
Pound per Teaspoon and Stone per Tablespoon 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
stones per tablespoon = pounds per teaspoon × 0.214285714286
This factor comes from each unit's defined relationship to the category's base unit: 1 pound per teaspoon equals 92026.6961794 base units, and 1 stone per tablespoon equals 429457.915504 base units, so dividing one by the other gives the direct pound per teaspoon-to-stone per tablespoon factor of 0.214285714286.
Simple example
1 lb/tsp × 0.2142857143 = 0.2142857143 st/tbsp
1 pound per teaspoon = 0.2142857143 stones per tablespoon.
Real-world example
1,000 lb/tsp × 0.2142857143 = 214.2857143 st/tbsp
1,000 pounds per teaspoon = 214.2857143 stones per tablespoon.
Conversion table
| Pound per Teaspoon (lb/tsp) | Stone per Tablespoon (st/tbsp) |
|---|---|
| 0.1 lb/tsp | 0.0214285714 st/tbsp |
| 1 lb/tsp | 0.2142857143 st/tbsp |
| 10 lb/tsp | 2.142857143 st/tbsp |
| 100 lb/tsp | 21.42857143 st/tbsp |
| 1,000 lb/tsp | 214.2857143 st/tbsp |
| 10,000 lb/tsp | 2,142.857143 st/tbsp |
Reverse conversion: Stone per Tablespoon to Pound per Teaspoon
0.2142857143 st/tbsp × 4.666666667 = 1 lb/tsp
0.2142857143 stones per tablespoon = 1 pounds per teaspoon.
pounds per teaspoon = stones per tablespoon × 4.66666666667
For a page dedicated to this direction, see Stone per Tablespoon to Pound per Teaspoon.
Understanding the Pound per Teaspoon (lb/tsp)
Mass per volume density.
Understanding the Stone per Tablespoon (st/tbsp)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per tablespoon are in 1 pound per teaspoon?
1 pound per teaspoon equals 0.2142857143 stones per tablespoon, using the exact defined conversion factor rather than an estimate.
How do I convert pound per teaspoon to stone per tablespoon?
Multiply the pound per teaspoon value by 0.2142857143. The converter above does this instantly to whatever precision you set.
How do I convert stone per tablespoon back to pound per teaspoon?
Use the reverse factor: 1 stone per tablespoon equals 4.666666667 pounds per teaspoon. You can also use the swap control in the converter above to flip the direction instantly.
What is a pound per teaspoon?
Pound per Teaspoon (lb/tsp) is a unit of density.
What is a stone per tablespoon?
Stone per Tablespoon (st/tbsp) is a unit of density.
Is the pound per teaspoon to stone per tablespoon conversion exact?
Yes. Both pound per teaspoon and stone per tablespoon are defined by fixed standards rather than physical artifacts, so the factor of 0.2142857143 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.