| 1 ppb | = 6.2427960591578E-8 lb/ft3 |
| 2 ppb | = 1.2485592118316E-7 lb/ft3 |
| 3 ppb | = 1.8728388177473E-7 lb/ft3 |
| 4 ppb | = 2.4971184236631E-7 lb/ft3 |
| 5 ppb | = 3.1213980295789E-7 lb/ft3 |
| 6 ppb | = 3.7456776354947E-7 lb/ft3 |
| 7 ppb | = 4.3699572414105E-7 lb/ft3 |
| 8 ppb | = 4.9942368473263E-7 lb/ft3 |
| 9 ppb | = 5.618516453242E-7 lb/ft3 |
| 10 ppb | = 6.2427960591578E-7 lb/ft3 |
| 20 ppb | = 1.2485592118316E-6 lb/ft3 |
| 30 ppb | = 1.8728388177473E-6 lb/ft3 |
| 40 ppb | = 2.4971184236631E-6 lb/ft3 |
| 50 ppb | = 3.1213980295789E-6 lb/ft3 |
| 60 ppb | = 3.7456776354947E-6 lb/ft3 |
| 70 ppb | = 4.3699572414105E-6 lb/ft3 |
| 80 ppb | = 4.9942368473263E-6 lb/ft3 |
| 90 ppb | = 5.618516453242E-6 lb/ft3 |
| 100 ppb | = 6.2427960591578E-6 lb/ft3 |
| 200 ppb | = 1.2485592118316E-5 lb/ft3 |
| 300 ppb | = 1.8728388177473E-5 lb/ft3 |
| 400 ppb | = 2.4971184236631E-5 lb/ft3 |
| 500 ppb | = 3.1213980295789E-5 lb/ft3 |
| 600 ppb | = 3.7456776354947E-5 lb/ft3 |
| 700 ppb | = 4.3699572414105E-5 lb/ft3 |
| 800 ppb | = 4.9942368473263E-5 lb/ft3 |
| 900 ppb | = 5.618516453242E-5 lb/ft3 |
| 1000 ppb | = 6.2427960591578E-5 lb/ft3 |
| 2000 ppb | = 0.00012485592118316 lb/ft3 |
| 4000 ppb | = 0.00024971184236631 lb/ft3 |
| 5000 ppb | = 0.00031213980295789 lb/ft3 |
| 7500 ppb | = 0.00046820970443684 lb/ft3 |
| 10000 ppb | = 0.00062427960591578 lb/ft3 |
| 25000 ppb | = 0.0015606990147895 lb/ft3 |
| 50000 ppb | = 0.0031213980295789 lb/ft3 |
| 100000 ppb | = 0.0062427960591578 lb/ft3 |
| 1000000 ppb | = 0.062427960591578 lb/ft3 |
| 1000000000 ppb | = 62.427960591578 lb/ft3 |