# Volume to weight converter

This calculator converts from volume to weight (mass) according to the substance that you choose.

### Volume to 'Weight' Converter

## How to convert from volume to mass (incorrectly called 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 m_{kg} = m_{lb} × mcf (1)

To transform the volume from gallons to cubic meters we should multiply the volume in cubic meters 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 v_{m³} = v_{gal} × vcf (2)

Now, dividing the equation (1) by the equation (2), we get

m_{kg}v_{m³} = m_{lb} × mcfv_{gal} × vcf, or

m_{kg}v_{m³} = m_{lb}v_{gal} × mcfvcf, but m_{kg}v_{m³} is, by definition, the density (d) in kg/m³, so

d = m_{lb}v_{gal} × mcfvcf

Rearranging the formula above we get

m_{lb} = d × v_{gal} × 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.

## Liter to Kilogram Conversion Chart - Alcohol, ethyl

Note: Fractions are rounded to the nearest 8th fraction. Values are rounded to 3 significant figures.

liters to kilograms of Alcohol, ethyl | ||
---|---|---|

1 liter | = | 0.785 kilogram |

2 liters | = | 1.57 kilograms |

4 liters | = | 3.14 kilograms |

5 liters | = | 3.93 kilograms |

8 liters | = | 6.28 kilograms |

^{1}/_{16} | = | 0.0491 kilogram |

^{1}/_{8} | = | 0.0981 kilogram |

^{1}/_{4} | = | 0.196 kilogram |

^{1}/_{3} | = | 0.262 kilogram |

^{1}/_{2} | = | 0.393 kilogram |

^{2}/_{3} | = | 0.523 kilogram |

^{3}/_{4} | = | 0.589 kilogram |

1 ^{1}/_{16} | = | 0.834 kilogram |

1 ^{1}/_{8} | = | 0.883 kilogram |

1 ^{1}/_{4} | = | 0.981 kilogram |

1 ^{1}/_{3} | = | 1.05 kilograms |

1 ^{1}/_{2} | = | 1.18 kilograms |

1 ^{2}/_{3} | = | 1.31 kilograms |

1 ^{3}/_{4} | = | 1.37 kilograms |

2 ^{1}/_{16} | = | 1.62 kilograms |

2 ^{1}/_{8} | = | 1.67 kilograms |

2 ^{1}/_{4} | = | 1.77 kilograms |

2 ^{1}/_{3} | = | 1.83 kilograms |

The above tables contains values for the densities of many common substances in kilograms per cubic meter. The last column shows at which temperature the measurement was made. See details on how to use it above.

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 |

tonne | 1000 |

pound | 0.45359237 |

ounce | 0.02834952313 |

The above tables contains the conversion factors to convert units of volume to cubic meter, as well as, to convert other units of mass to kilograms. See details above.