🧪 Grains → Milliliters Converter
Express a mass measured in grains as a liquid volume.
Handy for pharmaceuticals, reloading, and specialty formulations where grains are used for precision dosing but liquids are dispensed by volume.
Pure water at ~4°C.
Milliliters: 45.359237 mL
Teaspoons: 9.2 tsp
Liters: 0.0454 L
How to Use This Calculator
Enter grains
Provide the mass in grains (common in pharmaceuticals and ballistics).
Select density
Choose a preset liquid or enter a custom density in g/cc.
Review volume
See the equivalent milliliters, teaspoons, and liters.
Formula
Grams = Grains × 0.06479891
Volume (cc) = Grams ÷ Density (g/cc)
Milliliters = Volume (cc)
Teaspoons ≈ Volume ÷ 4.92892
Use the formula breakdown to confirm the calculation logic or perform the conversion manually if needed.
Full Description
The grain is a traditional mass unit used for extremely small quantities. When preparing solutions or compounds, it’s often necessary to translate that mass into volume to use pipettes, syringes, or measuring spoons.
This converter turns grains into grams, applies density, and presents the result as milliliters, teaspoons, and liters.
Because density affects the outcome, ensure that you select or enter a value representative of the actual substance.
Frequently Asked Questions
What is a grain?
One grain equals 64.79891 milligrams. It is commonly used in pharmacy, dentistry, and ballistics.
Can I convert grains directly to grams?
Yes. The result includes the implicit gram conversion, or you can use a dedicated mass converter.
Does this handle dry powders?
Only if you know the bulk density in g/cc. Densities for powders vary widely depending on packing and moisture.
Are negative grains allowed?
Negative masses are not physical, so negative inputs are flagged as invalid.