The density, or more precisely, the volumetric mass density of yttrium is 4472 kg/m³. This means that the mass of 1 m³ yttrium is 4472 kg.
The weight (on earth) of 1 m³ yttrium is 43870,32 N or 43,87032 kN.
Conversion Chart Metric System:
| Kilogram per cubic meter | 4472 | kg/m³ |
| Tonne per cubic meter | 4,472 | t/m³ |
| Gram per cubic meter | 4472000 | g/m³ |
| Milligram per cubic meter | 4472000000 | mg/m³ |
| Kilogram per cubic centimeter | 0,004472 | kg/cm³ |
| Gram per cubic centimeter | 4,472 | g/cm³ |
| Milligram per cubic centimeter | 4472 | mg/cm³ |
| Kilogram per litre | 4,472 | kg/L |
| Gram per litre | 4472 | g/L |
| Milligram per litre | 4472000 | mg/L |
| Kilogram per millilitre | 0,004472 | kg/mL |
| Gram per millilitre | 4,472 | g/mL |
| Milligram per millilitre | 4472 | mg/mL |
Conversion Chart British and U.S.:
| Pound per cubic yard | 7539,792 | lb/yd³ |
| Pound per cubic foot | 279,18696 | lb/ft³ |
| Pound per cubic inch | 0,16157336 | lb/in³ |
| Pound per U.S. gallon | 37,31884 | lb/gal |
| Pound per British gallon | 44,80944 | |
| Pound per U.S. bushel | 347,42968 | |
| Ounce per cubic yard | 120609,84 | oz/yd³ |
| Ounce per cubic foot | 4466,6336 | oz/ft³ |
| Ounce per cubic inch | 2,584816 | oz/in³ |
| Ounce per U.S. gallon | 597,012 | oz/gal |
| Ounce per British gallon | 717,3088 | |
| Ounce per U.S. bushel | 5558,696 |
British Gravitational and English Engineering Units:
| Slug per cubic yard | 234,28808 | slug/yd³ |
| Slug per cubic foot | 8,67568 | slug/ft³ |
| Slug per cubic inch | 0,005022056 | slug/in³ |