mg to mL Calculator
Figure out how many milliliters of a liquid solution you need to get a specific milligram dose. Just enter the dose in mg and the concentration listed on the bottle, and the calculator does the rest.
Milligrams (mg) measure mass, while milliliters (mL) measure volume. To convert between them for a solution, you need to know the concentration, which tells you how many milligrams of active ingredient are dissolved in each milliliter.
Formula: mL = mg / concentration (mg/mL)
For example, if you need 500 mg of a medication that comes in a concentration of 50 mg/mL, you need 500 / 50 = 10 mL.
Common Medication Concentrations:
| Medication | Typical Concentration |
|---|---|
| Children's acetaminophen | 160 mg / 5 mL (32 mg/mL) |
| Infant acetaminophen | 160 mg / 5 mL (32 mg/mL) |
| Children's ibuprofen | 100 mg / 5 mL (20 mg/mL) |
| Amoxicillin suspension | 250 mg / 5 mL (50 mg/mL) |
| Adult cough syrup (DM) | 10-20 mg / 5 mL |
Important: Always check the actual label of your specific product. Concentrations can vary between brands and formulations. This calculator is a math tool and not medical advice. Consult your pharmacist or doctor for dosing guidance.