mg ↔ mL Calculator
Convert medication dosage (mg) and liquid dose (mL) using density / concentration. Real-time updates, unit syncing, and PDF export.
Pick a liquid context. Density drives mg↔mL
Used in formulas: mL = mg / ρ or mg = ρ × mL.
Water (ρ = 1000 mg/mL)
🧠 Step-by-step derivation
Enter either dosage (mg) or liquid dose (mL) to see the algebra.
⚡ Quick summary
Set values to see a plain-language summary of the conversion.
📘 Reference (approx. at ~20 °C)
| Liquid | Density ρ (mg/mL) | Note |
|---|---|---|
| Water | 1000 | ≈1 g/mL |
| Milk | 1035 | varies by fat content |
| Cooking oil | 916 | typical vegetable oil |