Is g/mL the same as g/cm3?

Yes. One milliliter equals exactly one cubic centimeter (1 mL = 1 cm3). Therefore g/mL and g/cm3 are the same unit with different names. The numeric value is always identical — no multiplication is needed.

Why do two different notations exist for the same unit?

Convention and context. Chemists and pharmacists typically report liquid densities as g/mL because milliliters are practical for measuring volumes of liquids. Materials scientists and engineers often use g/cm3 because cubic centimeters relate naturally to solid geometry and the CGS unit system.

What is the density of water in g/mL and g/cm3?

Water at 4 °C has a density of 1.000 g/mL, which is exactly 1.000 g/cm3. This equivalence is the historical basis for defining the milliliter as equal to one cubic centimeter.

How does g/mL relate to kg/m3?

1 g/mL = 1 g/cm3 = 1000 kg/m3. To convert g/mL to kg/m3, multiply by 1000. For example, 0.789 g/mL (ethanol) = 789 kg/m3.

Does temperature affect the conversion factor between g/mL and g/cm3?

No. The conversion factor is always exactly 1 regardless of temperature, because it is a unit definition, not a physical property. Temperature affects the density value itself (most materials expand when heated), but g/mL and g/cm3 always express that value identically.

g/mL to g/cm3 Converter

Name: g/mL to g/cm3 Converter
Availability: InStock
Author: Nham Vu

Convert density between g/mL and g/cm3 — they are numerically identical because 1 mL = 1 cm3 by definition.

Density Converter

1 g/mL = 1 g/cm³ exactly — same unit, different name.

Grams per milliliter (g/mL)

g/mL

Grams per cubic centimeter (g/cm³)

g/cm³

Conversion factor: 1 (exact) — g/mL and g/cm³ are the same unit

Common Densities

Click a row to load its value. Values in g/mL and g/cm³ are identical.

Material	g/mL = g/cm³

Summary

Convert density between g/mL and g/cm3 — they are numerically identical because 1 mL = 1 cm3 by definition.

How it works

Enter a density value in the g/mL field to see the equivalent g/cm3 value.
Or enter a g/cm3 value to see it expressed as g/mL.
Both fields always show the same number because the conversion factor is exactly 1.
The definition: 1 mL = 1 cm3, so g/mL and g/cm3 are interchangeable notations.
Click any row in the reference table to load that material's density into the converter.

Use cases

Confirm that a g/mL density value from a chemistry lab report is the same as a g/cm3 value in a materials-science table.
Translate liquid densities (typically reported as g/mL) into solid-density notation (g/cm3) for consistent unit use.
Verify whether a liquid is denser or lighter than water (1.000 g/mL = 1.000 g/cm3).
Cross-check density data between sources that use g/mL and those that use g/cm3.
Quickly look up densities of common materials like ethanol, mercury, or aluminum.

Frequently Asked Questions

Last updated: 2026-07-23 · Reviewed by Nham Vu