| Model Type | Type of data | Output voxel units |
| Density | Gravity | gr/cm3 |
| Susceptibility | Magnetic | SIs |
| Vector Magnetization | Magnetic | SIs (see Notes below) |
Notes
The usual unit for vector magnetization is A/m but in VOXI it is scaled by H, the earth's magnetic field strength which also has units of A/m, yielding a dimensionless quantity which has the same magnitude as SI susceptibility and is dimensionless like susceptibility.