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cc to Grams Converter

Convert cubic centimeters to grams using a water approximation or a density you provide.

Published

Mass

Weight / mass
250 g
Density used
1 g/cc
Volume
250 cc
Kilograms
0.25 kg
Ounces
8.8185 oz

250 cc at 1 g/cc equals 250 g.

Volume in cubic centimeters. One cc is one cubic centimeter.
cc
Use the water approximation or enter a measured density for another substance.

Results update as you type.

Worked example

volumeCc: 250 · densityPreset: water · customDensity: 1

Result: 250 g

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cc to Grams Converter

Convert volume to mass by supplying density. The form offers a water approximation of 1 g/cc and a custom density option. It does not assume unsupported food or liquid densities.

Formula and inputs

mass=density×volume\text{mass} = \text{density} \times \text{volume}

With the form units:

grams=cc×g/cc\text{grams} = \text{cc} \times \text{g/cc}

One cubic centimeter is the same volume as one milliliter, so a density stated in g/mL has the same numeric value in g/cc. Enter a nonnegative volume and a positive custom density. The calculator rejects unknown material options, nonnumeric values, and results that overflow.

For 250 cc at 1 g/cc, the result is:

250×1=250 g250 \times 1 = 250\ \text{g}

The supporting results convert 250 g to 0.25 kg and approximately 8.8185 oz using the exact avoirdupois ounce definition. Display rounding does not change the raw multiplication.

Choosing a density

Density depends on material, temperature, pressure, composition, and—for powders or grains—packing. Use a value from the applicable specification or measurement. The water option is useful only when 1 g/cc is an acceptable approximation for the task. It is not suitable for dosing, regulated trade, or any decision that requires the actual material density.

Use the density converter when your density is in another unit. Use the volume converter when you only need to change volume units.

Sources

Frequently asked questions

Is one cc always one gram?
No. A cc measures volume and a gram measures mass. They have the same numeric value only when density is 1 g/cc.
What density should I use?
Use a measured or documented density for the material and conditions. The water option is a 1 g/cc approximation, not a universal material factor.

Sources

  • NIST-OWM-SI-UNITS-VOLUME

    primary · Aug 11, 2026

    Supports: Supports the cubic centimeter equals milliliter volume identity that lets densities stated in g/mL be used as g/cc.

  • NIST-WEBBOOK-WATER

    primary · Aug 11, 2026

    Supports: Supports the statement that water's density is 1 g/cc only as an approximation under stated conditions.

  • NIST-SP811-2008

    primary · Aug 11, 2026

    Supports: Supports the exact avoirdupois ounce and kilogram factors used for the supporting mass rows.

    — vNIST SP 811, 2008 edition

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