Mass per volume density.
Stones per Cup to Megagrams per Cup Converter — st/cup to Mg/cup
Convert Stone per Cup (st/cup) to Megagram per Cup (Mg/cup) using the exact conversion factor (1 stone per cup = 0.0063502932 megagram per cup). See the formula, worked examples, and conversion table.
Stones per Cup to Megagrams 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 26841.11972 / 4.22675284e+6.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Stones per Cup to Megagrams per Cup
Stone per Cup and Megagram 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
megagrams per cup = stones per cup × 0.00635029318
This factor comes from each unit's defined relationship to the category's base unit: 1 stone per cup equals 26841.119719 base units, and 1 megagram per cup equals 4226752.83773 base units, so dividing one by the other gives the direct stone per cup-to-megagram per cup factor of 0.00635029318.
Simple example
1 st/cup × 0.00635029318 = 0.0063502932 Mg/cup
1 stone per cup = 0.0063502932 megagrams per cup.
Real-world example
1,000 st/cup × 0.00635029318 = 6.35029318 Mg/cup
1,000 stones per cup = 6.35029318 megagrams per cup.
Conversion table
| Stone per Cup (st/cup) | Megagram per Cup (Mg/cup) |
|---|---|
| 0.1 st/cup | 0.0006350293 Mg/cup |
| 1 st/cup | 0.0063502932 Mg/cup |
| 10 st/cup | 0.0635029318 Mg/cup |
| 100 st/cup | 0.635029318 Mg/cup |
| 1,000 st/cup | 6.35029318 Mg/cup |
| 10,000 st/cup | 63.5029318 Mg/cup |
Reverse conversion: Megagram per Cup to Stone per Cup
0.0063502932 Mg/cup × 157.4730444 = 1.000000003 st/cup
0.0063502932 megagrams per cup = 1.000000003 stones per cup.
stones per cup = megagrams per cup × 157.473044418
For a page dedicated to this direction, see Megagram per Cup to Stone per Cup.
Understanding the Stone per Cup (st/cup)
Mass per volume density.
Understanding the Megagram per Cup (Mg/cup)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many megagrams per cup are in 1 stone per cup?
1 stone per cup equals 0.0063502932 megagrams per cup, using the exact defined conversion factor rather than an estimate.
How do I convert stone per cup to megagram per cup?
Multiply the stone per cup value by 0.00635029318. The converter above does this instantly to whatever precision you set.
How do I convert megagram per cup back to stone per cup?
Use the reverse factor: 1 megagram per cup equals 157.4730444 stones per cup. You can also use the swap control in the converter above to flip the direction instantly.
What is a stone per cup?
Stone per Cup (st/cup) is a unit of density.
What is a megagram per cup?
Megagram per Cup (Mg/cup) is a unit of density.
Is the stone per cup to megagram per cup conversion exact?
Yes. Both stone per cup and megagram per cup are defined by fixed standards rather than physical artifacts, so the factor of 0.00635029318 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.