The density, or more precisely, the volumetric mass density of iridium is 22560 kg/m³. This means that the mass of 1 m³ iridium is 22560 kg.
The weight (on earth) of 1 m³ iridium is 221313,6 N or 221,3136 kN.
Conversion Chart Metric System:
| Kilogram per cubic meter | 22560 | kg/m³ |
| Tonne per cubic meter | 22,56 | t/m³ |
| Gram per cubic meter | 22560000 | g/m³ |
| Milligram per cubic meter | 22560000000 | mg/m³ |
| Kilogram per cubic centimeter | 0,02256 | kg/cm³ |
| Gram per cubic centimeter | 22,56 | g/cm³ |
| Milligram per cubic centimeter | 22560 | mg/cm³ |
| Kilogram per litre | 22,56 | kg/L |
| Gram per litre | 22560 | g/L |
| Milligram per litre | 22560000 | mg/L |
| Kilogram per millilitre | 0,02256 | kg/mL |
| Gram per millilitre | 22,56 | g/mL |
| Milligram per millilitre | 22560 | mg/mL |
Conversion Chart British and U.S.:
| Pound per cubic yard | 38036,16 | lb/yd³ |
| Pound per cubic foot | 1408,4208 | lb/ft³ |
| Pound per cubic inch | 0,8150928 | lb/in³ |
| Pound per U.S. gallon | 188,2632 | lb/gal |
| Pound per British gallon | 226,0512 | |
| Pound per U.S. bushel | 1752,6864 | |
| Ounce per cubic yard | 608443,2 | oz/yd³ |
| Ounce per cubic foot | 22532,928 | oz/ft³ |
| Ounce per cubic inch | 13,03968 | oz/in³ |
| Ounce per U.S. gallon | 3011,76 | oz/gal |
| Ounce per British gallon | 3618,624 | |
| Ounce per U.S. bushel | 28042,08 |
British Gravitational and English Engineering Units:
| Slug per cubic yard | 1181,9184 | slug/yd³ |
| Slug per cubic foot | 43,7664 | slug/ft³ |
| Slug per cubic inch | 0,02533488 | slug/in³ |