Mass per volume density.
Ounces per Pint to Grains per Fluid ounce Converter — oz/pt to gr/fl oz
Convert Ounce per Pint (oz/pt) to Grain per Fluid ounce (gr/fl oz) using the exact conversion factor (1 ounce per pint = 27.34375 grain per fluid ounce). See the formula, worked examples, and conversion table.
Ounces per Pint to Grains per Fluid ounce 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 59.91321366 / 2.191111814.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Ounces per Pint to Grains per Fluid ounce
Ounce per Pint and Grain per Fluid ounce 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 fluid ounce = ounces per pint × 27.34375
This factor comes from each unit's defined relationship to the category's base unit: 1 ounce per pint equals 59.9132136584 base units, and 1 grain per fluid ounce equals 2.19111181379 base units, so dividing one by the other gives the direct ounce per pint-to-grain per fluid ounce factor of 27.34375.
Simple example
1 oz/pt × 27.34375 = 27.34375 gr/fl oz
1 ounce per pint = 27.34375 grains per fluid ounce.
Real-world example
1,000 oz/pt × 27.34375 = 27,343.75 gr/fl oz
1,000 ounces per pint = 27,343.75 grains per fluid ounce.
Conversion table
| Ounce per Pint (oz/pt) | Grain per Fluid ounce (gr/fl oz) |
|---|---|
| 0.1 oz/pt | 2.734375 gr/fl oz |
| 1 oz/pt | 27.34375 gr/fl oz |
| 10 oz/pt | 273.4375 gr/fl oz |
| 100 oz/pt | 2,734.375 gr/fl oz |
| 1,000 oz/pt | 27,343.75 gr/fl oz |
| 10,000 oz/pt | 273,437.5 gr/fl oz |
Reverse conversion: Grain per Fluid ounce to Ounce per Pint
27.34375 gr/fl oz × 0.03657142857 = 1 oz/pt
27.34375 grains per fluid ounce = 1 ounces per pint.
ounces per pint = grains per fluid ounce × 0.0365714285714
For a page dedicated to this direction, see Grain per Fluid ounce to Ounce per Pint.
Understanding the Ounce per Pint (oz/pt)
Mass per volume density.
Understanding the Grain per Fluid ounce (gr/fl oz)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many grains per fluid ounce are in 1 ounce per pint?
1 ounce per pint equals 27.34375 grains per fluid ounce, using the exact defined conversion factor rather than an estimate.
How do I convert ounce per pint to grain per fluid ounce?
Multiply the ounce per pint value by 27.34375. The converter above does this instantly to whatever precision you set.
How do I convert grain per fluid ounce back to ounce per pint?
Use the reverse factor: 1 grain per fluid ounce equals 0.0365714286 ounces per pint. You can also use the swap control in the converter above to flip the direction instantly.
What is a ounce per pint?
Ounce per Pint (oz/pt) is a unit of density.
What is a grain per fluid ounce?
Grain per Fluid ounce (gr/fl oz) is a unit of density.
Is the ounce per pint to grain per fluid ounce conversion exact?
Yes. Both ounce per pint and grain per fluid ounce are defined by fixed standards rather than physical artifacts, so the factor of 27.34375 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.