# What is the formula of weight by volume?

## What is the weight per unit volume of water?

The usual unit of measurement for the density of water is gram per milliliter (1 g/ml) or 1 gram per cubic centimeter (1 g/cm3). In fact, the exact density of water is not actually 1 g/ml, but slightly less (very, very slightly less), at 0. On the same subject : **How much does a 5 gallon of water weigh?**.9998395 g/ml at 4.0° Celsius (39.2° Fahrenheit).

What is the unit weight of water in n m3? water has a specific gravity of 9810 N/m3. The specific gravity of a **liquid**, denoted SG, is defined as the ratio of the density of a liquid to the density of water at a certain temperature.

### How do you calculate unit weight of water?

In **short**, 1 mL (milliliter) of water has a mass of 1 g, so 1 liter has a mass of 1 kg. You can use this fact to calculate the mass of water from any volume: for example, 450 ml is 450 g, and 1.35 liters is 1.35 kg.

## How do you write kg?

The use of the SI (International System of Units), followed in scientific and technical writing, requires that both the number and name of the unit be written in full (eg twelve kilograms) or that the number is followed by a symbol (eg 12 kg). This lighter dumbbell weighs two kilograms. Read also : **How do you convert mass of water into volume?**.

How do you write 1 kg? The kilogram (also kilogram) is a unit of mass in the International System of Units (SI), which has the unit symbol kg. It is a widely used measure in science, engineering and commerce around the world, and is often simply colloquially referred to as the kilogram. It means ‘one thousand grams’.