Mass per volume density.
Stones per Gallon to Long tons per Teaspoon Converter — st/gal to long ton/tsp
Convert Stone per Gallon (st/gal) to Long ton per Teaspoon (long ton/tsp) using the exact conversion factor (1 stone per gallon = 0.000008138 long ton per teaspoon). See the formula, worked examples, and conversion table.
Stones per Gallon to Long tons per Teaspoon 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 1677.569982 / 2.06139799e+8.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Stones per Gallon to Long tons per Teaspoon
Stone per Gallon and Long ton per Teaspoon 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 teaspoon = stones per gallon × 0.00000813802083333
This factor comes from each unit's defined relationship to the category's base unit: 1 stone per gallon equals 1677.56998244 base units, and 1 long ton per teaspoon equals 206139799.442 base units, so dividing one by the other gives the direct stone per gallon-to-long ton per teaspoon factor of 0.00000813802083333.
Simple example
1 st/gal × 0.000008138020833 = 0.000008138 long ton/tsp
1 stone per gallon = 0.000008138 long tons per teaspoon.
Real-world example
1,000 st/gal × 0.000008138020833 = 0.0081380208 long ton/tsp
1,000 stones per gallon = 0.0081380208 long tons per teaspoon.
Conversion table
| Stone per Gallon (st/gal) | Long ton per Teaspoon (long ton/tsp) |
|---|---|
| 0.1 st/gal | 8.138021e-7 long ton/tsp |
| 1 st/gal | 0.000008138 long ton/tsp |
| 10 st/gal | 0.0000813802 long ton/tsp |
| 100 st/gal | 0.0008138021 long ton/tsp |
| 1,000 st/gal | 0.0081380208 long ton/tsp |
| 10,000 st/gal | 0.0813802083 long ton/tsp |
Reverse conversion: Long ton per Teaspoon to Stone per Gallon
0.000008138 long ton/tsp × 122880 = 0.99999744 st/gal
0.000008138 long tons per teaspoon = 0.99999744 stones per gallon.
stones per gallon = long tons per teaspoon × 122880
For a page dedicated to this direction, see Long ton per Teaspoon to Stone per Gallon.
Understanding the Stone per Gallon (st/gal)
Mass per volume density.
Understanding the Long ton per Teaspoon (long ton/tsp)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many long tons per teaspoon are in 1 stone per gallon?
1 stone per gallon equals 0.000008138 long tons per teaspoon, using the exact defined conversion factor rather than an estimate.
How do I convert stone per gallon to long ton per teaspoon?
Multiply the stone per gallon value by 0.000008138020833. The converter above does this instantly to whatever precision you set.
How do I convert long ton per teaspoon back to stone per gallon?
Use the reverse factor: 1 long ton per teaspoon equals 122,880 stones per gallon. You can also use the swap control in the converter above to flip the direction instantly.
What is a stone per gallon?
Stone per Gallon (st/gal) is a unit of density.
What is a long ton per teaspoon?
Long ton per Teaspoon (long ton/tsp) is a unit of density.
Is the stone per gallon to long ton per teaspoon conversion exact?
Yes. Both stone per gallon and long ton per teaspoon are defined by fixed standards rather than physical artifacts, so the factor of 0.000008138020833 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.