Density to Mass Calculator

Enter density (g/mL) and volume (mL) to instantly calculate mass. Perfect for lab work, cooking, and engineering calculations.

g & mgOutput Units
InstantResults
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g/mL
mL
100.0000 g
100,000 mg
1.0 g/mL × 100 mL = 100.0000 g

See Mass Build Up

Watch how density and volume combine to produce mass

Volume
× density
100 g
Mass Result

How to Calculate Mass from Density

If you know a substance's density and the volume you have, you can find the total mass by simple multiplication. This is the reverse of the density formula.

The Formula

Mass (g) = Density (g/mL) × Volume (mL)

Step-by-Step Example

Finding the mass of 250 mL of honey (density 1.420 g/mL):

  1. Identify the density: 1.420 g/mL
  2. Identify the volume: 250 mL
  3. Multiply: 1.420 × 250 = 355 g

So 250 mL of honey has a mass of 355 grams (355,000 mg).

When Is This Useful?

  • Lab work — Calculate reagent mass from known density and measured volume.
  • Cooking — Convert volume recipes to weight-based ones for accuracy.
  • Pharmacy — Determine drug mass from liquid medication volume.
  • Engineering — Calculate material weight for structural analysis.

Conversion Tables

Quick reference tables for common mL to mg conversions by substance.

💧

Water

Density: 1.000 g/mL
mL mg
1 mL 1,000 mg
5 mL 5,000 mg
10 mL 10,000 mg
25 mL 25,000 mg
50 mL 50,000 mg
100 mL 100,000 mg
250 mL 250,000 mg
500 mL 500,000 mg
🥛

Milk (whole)

Density: 1.030 g/mL
mL mg
1 mL 1,030 mg
5 mL 5,150 mg
10 mL 10,300 mg
25 mL 25,750 mg
50 mL 51,500 mg
100 mL 103,000 mg
250 mL 257,500 mg
500 mL 515,000 mg
🍯

Honey

Density: 1.420 g/mL
mL mg
1 mL 1,420 mg
5 mL 7,100 mg
10 mL 14,200 mg
25 mL 35,500 mg
50 mL 71,000 mg
100 mL 142,000 mg
250 mL 355,000 mg
500 mL 710,000 mg
🫒

Olive Oil

Density: 0.918 g/mL
mL mg
1 mL 918 mg
5 mL 4,590 mg
10 mL 9,180 mg
25 mL 22,950 mg
50 mL 45,900 mg
100 mL 91,800 mg
250 mL 229,500 mg
500 mL 459,000 mg
🌾

Flour

Density: 0.593 g/mL
mL mg
1 mL 593 mg
5 mL 2,965 mg
10 mL 5,930 mg
25 mL 14,825 mg
50 mL 29,650 mg
100 mL 59,300 mg
250 mL 148,250 mg
500 mL 296,500 mg
🍬

Sugar

Density: 0.845 g/mL
mL mg
1 mL 845 mg
5 mL 4,225 mg
10 mL 8,450 mg
25 mL 21,125 mg
50 mL 42,250 mg
100 mL 84,500 mg
250 mL 211,250 mg
500 mL 422,500 mg
🍷

Alcohol (Ethanol)

Density: 0.789 g/mL
mL mg
1 mL 789 mg
5 mL 3,945 mg
10 mL 7,890 mg
25 mL 19,725 mg
50 mL 39,450 mg
100 mL 78,900 mg
250 mL 197,250 mg
500 mL 394,500 mg
🥥

Coconut Oil

Density: 0.880 g/mL
mL mg
1 mL 880 mg
5 mL 4,400 mg
10 mL 8,800 mg
25 mL 22,000 mg
50 mL 44,000 mg
100 mL 88,000 mg
250 mL 220,000 mg
500 mL 440,000 mg
🍁

Maple Syrup

Density: 1.330 g/mL
mL mg
1 mL 1,330 mg
5 mL 6,650 mg
10 mL 13,300 mg
25 mL 33,250 mg
50 mL 66,500 mg
100 mL 133,000 mg
250 mL 332,500 mg
500 mL 665,000 mg
🌡️

Mercury

Density: 13.534 g/mL
mL mg
1 mL 13,534 mg
5 mL 67,670 mg
10 mL 135,340 mg
25 mL 338,350 mg
50 mL 676,700 mg
100 mL 1,353,400 mg
250 mL 3,383,500 mg
500 mL 6,767,000 mg

Conversion Tools

Choose the right converter for your needs.

⚗️

mL to mg Converter

Convert milliliters to milligrams using substance density. Fast and accurate.

Example: 100 mL → 100,000 mg (water)
🧪

mg to mL Converter

Convert milligrams to milliliters. Find volume from mass with density.

Example: 5,000 mg → 5 mL (water)
⚖️

mL to Grams Converter

Convert milliliters to grams using substance density. Perfect for cooking and lab work.

Example: 100 mL → 100 g (water)
🏗️

mL to Kilograms Converter

Convert milliliters to kilograms. Ideal for large-volume industrial conversions.

Example: 1,000 mL → 1 kg (water)
🏋️

mL to Pounds Converter

Convert milliliters to pounds. Bridge metric volume to imperial weight instantly.

Example: 500 mL → 1.10 lb (water)
📐

mL to Liters Converter

Convert milliliters to liters. Simple volume unit conversion — no density needed.

Example: 1,000 mL → 1 L
🧪

Volume to Mass Converter

Convert volume (mL) to mass (mg) using density. Essential for lab and kitchen.

Example: 100 mL → 100,000 mg (water)
⚖️

Mass to Volume Converter

Convert mass (mg) to volume (mL) using density. Find how much space your substance takes.

Example: 5,000 mg → 5 mL (water)
🔬

Density Calculator

Calculate density from mass and volume. The key to all mass-volume conversions.

Example: 100 g ÷ 100 mL = 1.0 g/mL
📏

Volume to Density

Find density when you know volume and mass. Identify unknown substances.

Example: 250 mL, 229.5 g → 0.918 g/mL
🫧

Density to Volume

Calculate volume from density and mass. Find container size needed.

Example: 1.0 g/mL, 500 g → 500 mL
🧲

Mass to Density Converter

Calculate density from mass and volume. Determine substance identity from measurements.

Example: 150 g ÷ 120 mL = 1.25 g/mL
⚖️

Density to Mass Converter

Calculate mass from density and volume. Find the weight of any liquid instantly.

Example: 1.42 g/mL × 100 mL = 142 g
🥤

mL to Ounces Converter

Convert milliliters to fluid ounces. Bridge metric and imperial volume units.

Example: 250 mL → 8.45 fl oz
📖

Liquid Density Lookup

Search density values for 100+ common liquids. Reference tool for conversions.

Example: Honey → 1.42 g/mL
🧬

Normality Calculator

Calculate normality (N) from molarity, equivalent weight, and volume for chemistry.

Example: 0.5 M × 2 eq = 1.0 N

Density to Mass FAQ

Common questions about calculating mass from density.

Multiply density by volume: Mass = Density × Volume. For example, 1.42 g/mL × 100 mL = 142 grams.

Divide by 1,000 to convert kg/m³ to g/mL. For example, water's density of 1,000 kg/m³ equals 1.000 g/mL. Then use the calculator normally.

No. 100 mL of water weighs 100 g, but 100 mL of honey weighs about 142 g and 100 mL of ethanol weighs about 79 g. The difference is entirely due to density.

Yes. This calculator shows results in both grams and milligrams automatically. To convert manually, multiply grams by 1,000 to get milligrams.

Use our Liquid Density Lookup Tool to search and browse density values for 50+ common liquids, or check the conversion table below.