Gas Densities at Surface (1 bar)
| Gas | Density (g/L) |
|---|---|
| Air | 1.2925 |
| Oxygen (O₂) | 1.4276 |
| Nitrogen (N₂) | 1.2498 |
| Helium (He) | 0.1786 |
Gas Density for a Mix at Depth
Enter depth in meters and the gas mixture percentages to calculate the density:
Helium Optimal Gas Density
Calculate how much helium is needed to maintain a safe gas density at a known depth with an optimal oxygen fraction: