Stone per Teaspoon (st/tsp) expresses mass in stone per unit volume in teaspoon, found by dividing a mass value by a volume value.
Stone per Teaspoon to Pound per Cubic yard
Convert stone per teaspoon (st/tsp) to pound per cubic yard (lb/yd3) instantly with formula, conversion table, and FAQ.
Reserved for a responsive leaderboard above the conversion details.
Professional calculator style
World-scale conversion engine
30+ categories
6,500+ units
Instant results
Offline ready
Density calculator
Density Converter
Convert stone per teaspoon (st/tsp) to pound per cubic yard (lb/yd3) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
Pound per Cubic yard (lb/yd3) expresses mass in pound per unit volume in cubic yard, found by dividing a mass value by a volume value.
lb/yd3 = st/tsp × 2.171625e6
Results update instantly for Stone per Teaspoon to Pound per Cubic yard conversions.
Reserved above the conversion cards and below the converter.
Formula
lb/yd3 = st/tsp × 2.171625e6
st/tsp = lb/yd3 × 4.604847e-7
Conversion table
| 1 st/tsp | 2.171625e6 lb/yd3 |
| 5 st/tsp | 1.085812e7 lb/yd3 |
| 10 st/tsp | 2.171625e7 lb/yd3 |
| 20 st/tsp | 4.343249e7 lb/yd3 |
| 50 st/tsp | 1.085812e8 lb/yd3 |
| 100 st/tsp | 2.171625e8 lb/yd3 |
| 500 st/tsp | 1.085812e9 lb/yd3 |
| 1000 st/tsp | 2.171625e9 lb/yd3 |
Related conversions
Reserved between the cards and the FAQ so the page stays balanced.
How the formula works
Both stone per teaspoon and pound per cubic yard measure the same physical quantity (mass per unit volume), so converting between them is a single multiplication. Multiply a value in stone per teaspoon by 2.171625e6 to get pound per cubic yard. To reverse the conversion, multiply a pound per cubic yard value by 4.604847e-7 to get back to stone per teaspoon.
Frequently asked questions
What is Stone per Teaspoon (st/tsp)?
Stone per Teaspoon (st/tsp) expresses mass in stone per unit volume in teaspoon, found by dividing a mass value by a volume value.
What is Pound per Cubic yard (lb/yd3)?
Pound per Cubic yard (lb/yd3) expresses mass in pound per unit volume in cubic yard, found by dividing a mass value by a volume value.
How do I convert stone per teaspoon to pound per cubic yard?
Multiply the stone per teaspoon value by 2.171625e6 to get the equivalent in pound per cubic yard. For example, 5 st/tsp × 2.171625e6 = 1.085812e7 lb/yd3.
Is this conversion exact?
Yes. Both units are defined using fixed metric and imperial conversion constants, so the factor 2.171625e6 is an exact, non-rounded value.
Can I convert pound per cubic yard back to stone per teaspoon?
Yes. Divide the pound per cubic yard value by 2.171625e6, or multiply it by 4.604847e-7, to get stone per teaspoon.
Reserved between the FAQ and the article so the page stays balanced.
About converting stone per teaspoon to pound per cubic yard
Stone per Teaspoon (st/tsp) expresses mass in stone per unit volume in teaspoon, found by dividing a mass value by a volume value. Pound per Cubic yard (lb/yd3) expresses mass in pound per unit volume in cubic yard, found by dividing a mass value by a volume value.
Use this calculator to move between stone per teaspoon and pound per cubic yard accurately for science, engineering, manufacturing, or everyday density calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.