Density calculator
Fill in what you know and leave the unknown box empty — it works out whichever one is missing. Nothing is uploaded; the arithmetic happens in your browser.
The formula
ρ = m ÷ V
Where this usually goes wrong
Water is 1.00 g/cm³ at 4 °C, which is the number most density questions are checked against.
Worked example
27 g in 10 cm³ is 2.7 g/cm³ — aluminium.
Those numbers are already in the boxes above — press Work it out to see it, then change them for your own.
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