# 1/2 gallon to tonnes

1/2 US gallon of water equals 0.00189 tonne

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### Results

1/2 US gallon of water weighs 0.00189 tonne.

0.0018927059 tonne precisely. Some values are approximate. Note: Water at 25 °C | density: 1000 kg/m³.

## How to convert 1/2 US gallon of water to tonnes

To convert a quantity of a substance or material expressed as a volume to mass we simply use the formula:

mass = density × volume

We want to calculate the mass in tonnes from a volume in US gallons. We have the density table at the bottom of this web page that shows us the densities values in kg/m³, so we will use the folowing formula (see why below):

mass = d × v × vcfmcf, where mcf is the conversion factor to convert from tonne to kilogram (table near the end of this page) and vcf is the conversion factor to convert from US gallon to cubic meters.

So, plugging these values in the formula above, we get:

mass = 1000 × 0.5 × 0.003785411000

mass = 1.892711000

There are other ways to convert from volume to mass. This is one of them.

## 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

mkg = mlb × 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 = vgal × vcf (2)

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

mkgv = mlb × mcfvgal × vcf, or

mkgv = mlbvgal × mcfvcf, but mkgv 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.

## US gallons of water to tonnes Chart

US gallons of water to tonnes
0.41 US gallon of water = 0.00155 tonne
0.42 US gallon of water = 0.00159 tonne
0.43 US gallon of water = 0.00163 tonne
0.44 US gallon of water = 0.00167 tonne
0.45 US gallon of water = 0.0017 tonne
0.46 US gallon of water = 0.00174 tonne
0.47 US gallon of water = 0.00178 tonne
0.48 US gallon of water = 0.00182 tonne
0.49 US gallon of water = 0.00185 tonne
1/2 US gallon of water = 0.00189 tonne
US gallons of water to tonnes
1/2 US gallon of water = 0.00189 tonne
0.51 US gallon of water = 0.00193 tonne
0.52 US gallon of water = 0.00197 tonne
0.53 US gallon of water = 0.00201 tonne
0.54 US gallon of water = 0.00204 tonne
0.55 US gallon of water = 0.00208 tonne
0.56 US gallon of water = 0.00212 tonne
0.57 US gallon of water = 0.00216 tonne
0.58 US gallon of water = 0.0022 tonne
0.59 US gallon of water = 0.00223 tonne

Note: some values may be rounded.

These tables contain the most frequently used vcf and mcf.

Volume UnitFactor to convert to m³ (vcf)
milliliter0.000001
UK fluid ounce0.0000284130625
US fluid ounce0.00002957352956
UK gallon0.00454609
US gallon0.003785411784
Mass UnitFactor to convert to kg (mcf)
milligram0.000001
gram0.001
tonne1000
pound0.45359237
ounce0.02834952313

## FAQs on water weight to volume conversion

### 1/2 US gallon of water equals how many tonnes?

1/2 US gallon of water is equivalent 0.00189 tonne.

### How much is 0.00189 tonne of water in US gallons?

0.00189 tonne of water equals 1/2 US gallon.

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