⚠️ MEDICAL DOSAGE WARNING
This calculator is for educational and reference purposes only.
ALWAYS verify liquid medication dosages with healthcare professionals, official prescriptions, and pharmaceutical references.
Liquid medication concentrations vary significantly. Always check the medication label for accurate mg/mL concentration.
Consult your doctor, pharmacist, or healthcare provider for all medical dosage decisions.
Mg to mL Calculator
Convert between milligrams and milliliters with precise density calculations. Essential for liquid medications, dosages, and laboratory measurements
Milligrams ↔ Milliliters Converter
Pure water at room temperature
Enter the weight in milligrams to convert to volume
Conversion Results
Substance: Water
Density: 1000 mg/mL
Formula: 0 mg ÷ 1000 mg/mL = 0.000000 mL
Precision: Medical-grade accuracy based on substance density
Additional Conversions
Volume Units
Liters: 0.000000 L
Microliters: 0 μL
Teaspoons: 0.000 tsp
Tablespoons: 0.000 tbsp
Weight Units
Grams: 0.000000 g
Micrograms: 0 mcg
Ounces: 0.000000 oz
Grains: 0.000 gr
Conversion Formulas
Milligrams to Milliliters:
mL = mg ÷ density (mg/mL)
Divide weight by density to get volume
Milliliters to Milligrams:
mg = mL × density (mg/mL)
Multiply volume by density to get weight
Critical: Density varies by substance. Always use the correct density for accurate medical calculations.
Common Liquid Medication Examples
| Medication | Weight (mg) | Volume (mL) | Dose Type | Age Group |
|---|---|---|---|---|
| Acetaminophen Liquid (80mg/mL) | 160 mg | 2 mL | Children's dose | 2-3 years |
| Ibuprofen Liquid (100mg/5mL) | 100 mg | 5 mL | Standard pediatric dose | 6-11 months |
| Amoxicillin (250mg/5mL) | 250 mg | 5 mL | Antibiotic dose | Children |
| Cough Syrup | 150 mg | 5 mL | Standard adult dose | Adults |
| Liquid Vitamin D (400 IU/mL) | 10 mg | 1 mL | Daily supplement | Infants |
| Saline Solution | 1000 mg | 1 mL | Nasal irrigation | All ages |
Disclaimer: Examples are for educational purposes only. Always verify with healthcare professionals and medication labels.
Common Densities (mg/mL)
Quick Reference
For Water (1000 mg/mL):
Conversion Tips
Always check medication labels for exact concentration (mg/mL)
Different liquids have different densities - water is not universal
For medications, use the concentration on the package, not general density
Always verify dosage calculations with healthcare professionals
Understanding Mg to mL Conversion
Why Density Matters
Unlike converting between metric units of the same type (like mg to g), converting between weight (mg) and volume (mL) requires knowing the density of the substance. Different liquids have different densities, affecting the conversion.
The Water Standard
- •Water has a density of approximately 1000 mg/mL
- •This means 1000 mg of water = 1 mL of water
- •Other liquids will have different ratios
Medical Applications
In medical settings, liquid medications often specify their concentration in mg/mL, making this conversion essential for accurate dosing. Always use the specific concentration listed on the medication.
Common Mistakes
Dangerous Assumption: Treating all liquids like water
• Honey is 1.42× denser than water
• Oils are typically 0.9× the density of water
• Always check the specific density or concentration
Step-by-Step Conversion Examples
Example 1: Water Conversion
Problem: Convert 5000 mg of water to mL
Step 1: Identify density: Water = 1000 mg/mL
Step 2: Use formula: mL = mg ÷ density
Step 3: mL = 5000 ÷ 1000 = 5
Answer: 5000 mg of water = 5 mL
Check: 5 mL × 1000 mg/mL = 5000 mg ✓
Example 2: Medicine Conversion
Problem: How much liquid for 250 mg of medicine (50 mg/mL)?
Step 1: Identify concentration: 50 mg/mL
Step 2: Use formula: mL = mg ÷ concentration
Step 3: mL = 250 ÷ 50 = 5
Answer: Need 5 mL for 250 mg dose
Check: 5 mL × 50 mg/mL = 250 mg ✓