Formula for volume

what is formula for volume

d = m / v ------------------------Eq. 1
where d is the density, m is the mass & v is volume.
Now in case you are given any three quantities, the third quantity can be calculated. Using equation 1, you can calculate density given mass & volume.
Example 1: If an iron ball has a volume of 100mL & it weighs 780 grams, what is its density? What is its relative density?

d = m / v

d = 780g / 100 mL = 7.8 g/mL
Relative Density or R.D. = density of a substance / density of water
R.D. of Iron = 7.8 g/mL / 1.0 g/mL = 7.8 (dimensionless)
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Volume formula help