Mass per volume density.
Ounces per Liter to Grains per Milliliter Converter — oz/L to gr/mL
Convert Ounce per Liter (oz/L) to Grain per Milliliter (gr/mL) using the exact conversion factor (1 ounce per liter = 0.4375 grain per milliliter). See the formula, worked examples, and conversion table.
Ounces per Liter to Grains per Milliliter 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 28.34952313 / 64.79891.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Ounces per Liter to Grains per Milliliter
Ounce per Liter and Grain per Milliliter 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
grains per milliliter = ounces per liter × 0.4375
This factor comes from each unit's defined relationship to the category's base unit: 1 ounce per liter equals 28.349523125 base units, and 1 grain per milliliter equals 64.79891 base units, so dividing one by the other gives the direct ounce per liter-to-grain per milliliter factor of 0.4375.
Simple example
1 oz/L × 0.4375 = 0.4375 gr/mL
1 ounce per liter = 0.4375 grains per milliliter.
Real-world example
1,000 oz/L × 0.4375 = 437.5 gr/mL
1,000 ounces per liter = 437.5 grains per milliliter.
Conversion table
| Ounce per Liter (oz/L) | Grain per Milliliter (gr/mL) |
|---|---|
| 0.1 oz/L | 0.04375 gr/mL |
| 1 oz/L | 0.4375 gr/mL |
| 10 oz/L | 4.375 gr/mL |
| 100 oz/L | 43.75 gr/mL |
| 1,000 oz/L | 437.5 gr/mL |
| 10,000 oz/L | 4,375 gr/mL |
Reverse conversion: Grain per Milliliter to Ounce per Liter
0.4375 gr/mL × 2.285714286 = 1 oz/L
0.4375 grains per milliliter = 1 ounces per liter.
ounces per liter = grains per milliliter × 2.28571428571
For a page dedicated to this direction, see Grain per Milliliter to Ounce per Liter.
Understanding the Ounce per Liter (oz/L)
Mass per volume density.
Understanding the Grain per Milliliter (gr/mL)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grains per milliliter are in 1 ounce per liter?
1 ounce per liter equals 0.4375 grains per milliliter, using the exact defined conversion factor rather than an estimate.
How do I convert ounce per liter to grain per milliliter?
Multiply the ounce per liter value by 0.4375. The converter above does this instantly to whatever precision you set.
How do I convert grain per milliliter back to ounce per liter?
Use the reverse factor: 1 grain per milliliter equals 2.285714286 ounces per liter. You can also use the swap control in the converter above to flip the direction instantly.
What is a ounce per liter?
Ounce per Liter (oz/L) is a unit of density.
What is a grain per milliliter?
Grain per Milliliter (gr/mL) is a unit of density.
Is the ounce per liter to grain per milliliter conversion exact?
Yes. Both ounce per liter and grain per milliliter are defined by fixed standards rather than physical artifacts, so the factor of 0.4375 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.