mg to mL Calculator – Accurate & Easy Dose Conversion Tool

mg ⇄ mL Converter

Convert weight and volume using a preset liquid, custom density, or medication concentration.

Type

Weight

Volume

Enter only one of the two fields above, then click Calculate.

Converted weight

Converted volume

No calculation yet.

Enter one value and click Calculate to see the worked steps.

Volume from weight: mL = mg ÷ concentration
Weight from volume: mg = concentration × mL
Preset approximations: water ≈ 1000 mg/mL, milk ≈ 1035 mg/mL, cooking oil ≈ 911 mg/mL

For medication dosing, always follow the label and clinician instructions.

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