1 cubic meter of water in kg
Conversion Table: Cubic meters to Kilograms near 1 cubic meter (water)
Note: converted values are rounded for clarity. The input value (1) is highlighted if present in the table.
How to convert from volume to mass (often referred to as weight)?
Well, by definition of density we just need to use the formula:
mass = density × volume
Example: How much does 2 cubic meters of gasoline weigh in kilograms if the gasoline density is 750 kg/m³?
Plugging the values in the formula, we get
mass = density × volume = 750 × 2 = 1500 Kg
Very simple isn't it? Yes, it is as simple as that. But this works fine when the density value we have (from a chart for example) is defined using the same unit of volume and mass that we will use in the formula. For example, mass in kg and volume in liters. If we have, for example, mass in pounds and volume in gallons, we should do something to correct our result.
To transform the mass from pounds to kilograms we should multiply the mass in pounds by 0.45359237. We will call 0.45359237 the mass conversion factor - mcf
Matematically we write:
mass in kilograms = mass in pounds × mcf or
mkg = mlb × mcf (1)
To transform the volume from gallons to cubic meters we should multiply the volume in gallons by 0.003785411784. We will call 0.003785411784 the volume conversion factor - vcf
Matematically we write:
volume in cubic meters = volume in gallons × vcf or
vm³ = vgal × vcf (2)
Now, dividing the equation (1) by the equation (2), we get
mkgvm³ = mlb × mcfvgal × vcf, or
mkgvm³ = mlbvgal × mcfvcf, but mkgvm³ is, by definition, the density (d) in kg/m³, so
d = mlbvgal × mcfvcf
Rearranging the formula above we get
mlb = d × vgal × vcfmcf
Finally, we can generalize this formula any units of mass and volume, since we know how to find the values for mcf and vcf (Check the factor tables below).
m = d × v × vcfmcf
That is exactly the formula that we use in this calculator. You can see how this formula works reading the example above or/and choosing another one at the bottom of this page.
These tables contain the most frequently used vcf and mcf.
| Volume Unit | Factor to convert to m³ (vcf) |
|---|---|
| milliliter | 0.000001 |
| UK fluid ounce | 0.0000284130625 |
| US fluid ounce | 0.00002957352956 |
| UK gallon | 0.00454609 |
| US gallon | 0.003785411784 |
| Mass Unit | Factor to convert to kg (mcf) |
|---|---|
| milligram | 0.000001 |
| gram | 0.001 |
| kilogram | 1 |
| tonne | 1000 |
| pound | 0.45359237 |
| ounce | 0.02834952313 |
Note: The conversion factors shown above are exact values by international definition. The pound (0.45359237 kg) was standardized in 1959, and the US gallon (0.003785411784 m³) is defined exactly as 231 cubic inches. The varying number of decimal places reflects each unit's official definition, not measurement precision.
Data Sources & References
Material density data and descriptions are compiled from authoritative sources:
-
Mass, Weight, Density or Specific Gravity of Liquids - Simetric
Comprehensive database of liquid densities and specific gravities -
Mass, Weight, Density or Specific Gravity of Water at Various Temperatures - Simetric
Temperature-dependent water density data -
Volume to Weight conversions for common substances and materials - aqua-calc.com
Author: Aqua-Calc Team, Published: 2023 -
CRC Handbook of Chemistry and Physics - Chemical and physical properties
Comprehensive reference for chemical compounds and material properties -
ASTM International - Standards for materials testing
Technical standards for chemicals, liquids, and construction materials -
ISO Standards - International material standards
International Organization for Standardization - Material properties -
NIST (National Institute of Standards and Technology) - Measurement standards
Official US standards for weights, measures, and physical constants -
NIST Chemistry WebBook - Thermophysical properties
Database of chemical and physical property data for chemical compounds
Frequently Asked Questions
How do I convert volume to weight for chemical substances?
To convert volume to weight, you need to know the density of the substance. Different substances have different weights per volume. For example, 1 liter of water weighs about 1 kg, while 1 liter of ethanol weighs about 0.79 kg. Use our converter by selecting your substance and entering the volume.
Why do substance conversions vary?
Substance conversions vary because different chemicals have different densities. Water is denser than alcohol, which is denser than gasoline. Temperature, pressure, and concentration can also affect measurements.
Is it better to measure by weight or volume?
Measuring by weight is more accurate than measuring by volume, especially for chemical substances. Laboratory professionals prefer weight measurements because they are consistent and reproducible regardless of environmental conditions.
What is the difference between liters and cubic meters?
A liter is a metric unit of volume equal to 0.001 cubic meters. One cubic meter equals 1,000 liters. Both are standard SI units used in chemistry and science.
How accurate are volume to weight conversions?
Volume to weight conversions are approximate because substance density can vary based on factors like temperature, pressure, and purity. For best results in laboratory work, use a calibrated scale for precise weight measurements.
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