⚗️ mg to mL Calculator
Convert mass to volume for liquids by applying density (mg per mL).
Milligrams measure mass while milliliters measure volume. To convert between them, multiply or divide by the fluid density (mg/mL). Choose a preset fluid or enter a custom value for precise laboratory or kitchen work.
Baseline assumption: 1 mL water weighs 1 gram (1,000 mg).
Mass of the substance. 1 gram = 1,000 milligrams.
Volume result based on the selected density.
Grams (g)
5
Ounces (oz)
0.176
US Cups (cup)
0.02
How to Use This Calculator
Select or enter density
Choose a preset fluid or supply your own mg/mL density from lab data, formulation sheets, or supplier specs.
Input mass or volume
Provide the mass in milligrams or the volume in milliliters—the paired field updates immediately.
Review supporting conversions
Use grams, ounces, and cups outputs to align with recipes, batch records, or regulatory paperwork.
Formula
mL = mg ÷ (Density in mg/mL)
mg = mL × (Density in mg/mL)
Densities vary with temperature and composition. For critical dosing, always verify mg/mL from trusted sources.
Use the formula breakdown to confirm the calculation logic or perform the conversion manually if needed.
Full Description
Converting between mass and volume for liquids requires a density value. In chemistry labs, compounding pharmacies, and beverage production, densities are often provided in mg/mL. This calculator applies that factor so you can move seamlessly between weighed ingredients and measured liquids.
Preset densities cover common fluids, but you can override them to match your exact formulation. The tool also surfaces grams, ounces, and cups, helping teams collaborate across unit systems without manual conversion tables.
Combine this calculator with the mcg to mg Converter or Gallons to Pounds Converter when working across multiple scales or when scaling recipes from pilot batches to production runs.
Frequently Asked Questions
Why do I need density to convert mg to mL?
Milligrams measure mass while milliliters measure volume. Density links the two by describing how much mass fits into each milliliter.
What if I am working with powders?
Bulk powders have different densities and are often measured in mg per teaspoon or mg per mL when suspended. Obtain a density value specific to your material.
How accurate are the preset densities?
They are typical values at room temperature. For precise work, consult the material safety data sheet (MSDS) or laboratory measurements.
Can I convert large batches?
Yes. Enter large milligram totals or milliliter volumes—the formula scales linearly with density.