mg to mL Converter
Convert milligrams to milliliters (and back) using liquid density. Accurate for water, oils, honey, milk, and more.
1,000 mg =1 mL
All equivalents
Milligrams (mg)1,000
Milliliters (mL)1
Liters (L)0.001
Fluid Ounces (fl oz)0.0338
Teaspoons (tsp)0.2029
Tablespoons (tbsp)0.0676
Important note
mg ↔ mL conversion requires knowing the density of the substance. This converter is for liquids only. For solids or powders (e.g. medications), density varies greatly — consult a pharmacist or use a laboratory balance.
Liquid Density Reference
| Liquid | mg/mL | g/cm³ |
|---|---|---|
| Water | 1000 | 1.000 |
| Whole Milk | 1030 | 1.030 |
| Honey | 1420 | 1.420 |
| Olive Oil | 920 | 0.920 |
| Ethanol (95%) | 790 | 0.790 |
| Glycerol | 1261 | 1.261 |
| Seawater | 1025 | 1.025 |