Grams to mL Converter
Convert a mass in grams to a volume in milliliters by dividing by the substance's density. Pick from common liquids or enter your own density.
g
Substance
Volume = Mass ÷ Density
- 1
Density
1 - 2
Volume in mL
250 ÷ 1 = 250
How does this calculator work?
Milliliters = grams ÷ density (g/mL). For water (density 1.000): 250 g = 250 mL. For ethanol (0.789): 250 g ≈ 316.9 mL. For mercury (13.534): 250 g ≈ 18.5 mL. Always divide by the substance's density to get volume.
Formula
How this is calculated
Grams measure mass; milliliters measure volume. To convert between them you need to know how dense the substance is. Density (ρ) links the two: ρ = mass / volume, so volume = mass / density.
For water at room temperature the density is essentially 1.000 g/mL, making the conversion trivial — 250 g of water is 250 mL. For heavier liquids like mercury (13.534 g/mL) the same mass occupies far less volume; for lighter ones like ethanol (0.789 g/mL) it occupies more.
The density values listed here are standard reference values at approximately 20 °C and 1 atmosphere. Actual density varies with temperature, purity and pressure; for precise laboratory work, measure the density of your specific sample and enter it as a custom value. The result is in milliliters (mL); dividing by 1000 gives liters (L).
Frequently asked questions
Exactly 100 mL. Water has a density of 1.000 g/mL at room temperature, so the numbers are the same.
Because different substances pack different masses into the same volume. A gram of mercury occupies about 0.074 mL, while a gram of ethanol occupies about 1.267 mL — the density makes all the difference.
Yes. One milliliter equals one cubic centimeter (1 mL = 1 cm³ = 1 cc). The units are interchangeable for volume.
Also known as
TG we-Calculate Editorial Team. (2026). Grams to mL Converter [Online calculator]. TG we-Calculate. https://we-calculate.com/calculator/grams-in-ml-converter
TG we-Calculate Editorial Team. "Grams to mL Converter." TG we-Calculate. 2026. https://we-calculate.com/calculator/grams-in-ml-converter.
TG we-Calculate Editorial Team, "Grams to mL Converter," TG we-Calculate, 2026. [Online]. Available: https://we-calculate.com/calculator/grams-in-ml-converter
@misc{wecalculate_grams_in_ml_converter, title = {Grams to mL Converter}, author = {{TG we-Calculate Editorial Team}}, howpublished = {\url{https://we-calculate.com/calculator/grams-in-ml-converter}}, year = {2026}, note = {TG we-Calculate} }
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