Mass per volume density.
Megagrams per Cubic yard to Stones per Cup Converter — Mg/yd3 to st/cup
Convert Megagram per Cubic yard (Mg/yd3) to Stone per Cup (st/cup) using the exact conversion factor (1 megagram per cubic yard = 0.0487293613 stone per cup). See the formula, worked examples, and conversion table.
Megagrams per Cubic yard to Stones 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 1307.950619 / 26841.11972.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Megagrams per Cubic yard to Stones per Cup
Megagram per Cubic yard and Stone 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
stones per cup = megagrams per cubic yard × 0.0487293612565
This factor comes from each unit's defined relationship to the category's base unit: 1 megagram per cubic yard equals 1307.95061931 base units, and 1 stone per cup equals 26841.119719 base units, so dividing one by the other gives the direct megagram per cubic yard-to-stone per cup factor of 0.0487293612565.
Simple example
1 Mg/yd3 × 0.04872936126 = 0.0487293613 st/cup
1 megagram per cubic yard = 0.0487293613 stones per cup.
Real-world example
1,000 Mg/yd3 × 0.04872936126 = 48.72936126 st/cup
1,000 megagrams per cubic yard = 48.72936126 stones per cup.
Conversion table
| Megagram per Cubic yard (Mg/yd3) | Stone per Cup (st/cup) |
|---|---|
| 0.1 Mg/yd3 | 0.0048729361 st/cup |
| 1 Mg/yd3 | 0.0487293613 st/cup |
| 10 Mg/yd3 | 0.4872936126 st/cup |
| 100 Mg/yd3 | 4.872936126 st/cup |
| 1,000 Mg/yd3 | 48.72936126 st/cup |
| 10,000 Mg/yd3 | 487.2936126 st/cup |
Reverse conversion: Stone per Cup to Megagram per Cubic yard
0.0487293613 st/cup × 20.52150847 = 1.000000001 Mg/yd3
0.0487293613 stones per cup = 1.000000001 megagrams per cubic yard.
megagrams per cubic yard = stones per cup × 20.5215084749
For a page dedicated to this direction, see Stone per Cup to Megagram per Cubic yard.
Understanding the Megagram per Cubic yard (Mg/yd3)
Mass per volume density.
Understanding the Stone per Cup (st/cup)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many stones per cup are in 1 megagram per cubic yard?
1 megagram per cubic yard equals 0.0487293613 stones per cup, using the exact defined conversion factor rather than an estimate.
How do I convert megagram per cubic yard to stone per cup?
Multiply the megagram per cubic yard value by 0.04872936126. The converter above does this instantly to whatever precision you set.
How do I convert stone per cup back to megagram per cubic yard?
Use the reverse factor: 1 stone per cup equals 20.52150847 megagrams per cubic yard. You can also use the swap control in the converter above to flip the direction instantly.
What is a megagram per cubic yard?
Megagram per Cubic yard (Mg/yd3) is a unit of density.
What is a stone per cup?
Stone per Cup (st/cup) is a unit of density.
Is the megagram per cubic yard to stone per cup conversion exact?
Yes. Both megagram per cubic yard and stone per cup are defined by fixed standards rather than physical artifacts, so the factor of 0.04872936126 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.