The density, or more precisely, the volumetric mass density of cast iron is 7150 kg/m³. This means that the mass of 1 m³ cast iron is 7150 kg.
The weight (on earth) of 1 m³ cast iron is 70141,5 N or 70,1415 kN.
Conversion Chart Metric System:
| Kilogram per cubic meter | 7150 | kg/m³ |
| Tonne per cubic meter | 7,15 | t/m³ |
| Gram per cubic meter | 7150000 | g/m³ |
| Milligram per cubic meter | 7150000000 | mg/m³ |
| Kilogram per cubic centimeter | 0,00715 | kg/cm³ |
| Gram per cubic centimeter | 7,15 | g/cm³ |
| Milligram per cubic centimeter | 7150 | mg/cm³ |
| Kilogram per litre | 7,15 | kg/L |
| Gram per litre | 7150 | g/L |
| Milligram per litre | 7150000 | mg/L |
| Kilogram per millilitre | 0,00715 | kg/mL |
| Gram per millilitre | 7,15 | g/mL |
| Milligram per millilitre | 7150 | mg/mL |
Conversion Chart British and U.S.:
| Pound per cubic yard | 12054,9 | lb/yd³ |
| Pound per cubic foot | 446,3745 | lb/ft³ |
| Pound per cubic inch | 0,2583295 | lb/in³ |
| Pound per U.S. gallon | 59,66675 | lb/gal |
| Pound per British gallon | 71,643 | |
| Pound per U.S. bushel | 555,4835 | |
| Ounce per cubic yard | 192835,5 | oz/yd³ |
| Ounce per cubic foot | 7141,42 | oz/ft³ |
| Ounce per cubic inch | 4,1327 | oz/in³ |
| Ounce per U.S. gallon | 954,525 | oz/gal |
| Ounce per British gallon | 1146,86 | |
| Ounce per U.S. bushel | 8887,45 |
British Gravitational and English Engineering Units:
| Slug per cubic yard | 374,5885 | slug/yd³ |
| Slug per cubic foot | 13,871 | slug/ft³ |
| Slug per cubic inch | 0,00802945 | slug/in³ |