| 1 ftlb | = 0.32421148281881 cal20°C |
| 2 ftlb | = 0.64842296563763 cal20°C |
| 3 ftlb | = 0.97263444845644 cal20°C |
| 4 ftlb | = 1.2968459312753 cal20°C |
| 5 ftlb | = 1.6210574140941 cal20°C |
| 6 ftlb | = 1.9452688969129 cal20°C |
| 7 ftlb | = 2.2694803797317 cal20°C |
| 8 ftlb | = 2.5936918625505 cal20°C |
| 9 ftlb | = 2.9179033453693 cal20°C |
| 10 ftlb | = 3.2421148281881 cal20°C |
| 20 ftlb | = 6.4842296563763 cal20°C |
| 30 ftlb | = 9.7263444845644 cal20°C |
| 40 ftlb | = 12.968459312753 cal20°C |
| 50 ftlb | = 16.210574140941 cal20°C |
| 60 ftlb | = 19.452688969129 cal20°C |
| 70 ftlb | = 22.694803797317 cal20°C |
| 80 ftlb | = 25.936918625505 cal20°C |
| 90 ftlb | = 29.179033453693 cal20°C |
| 100 ftlb | = 32.421148281881 cal20°C |
| 200 ftlb | = 64.842296563763 cal20°C |
| 300 ftlb | = 97.263444845644 cal20°C |
| 400 ftlb | = 129.68459312753 cal20°C |
| 500 ftlb | = 162.10574140941 cal20°C |
| 600 ftlb | = 194.52688969129 cal20°C |
| 700 ftlb | = 226.94803797317 cal20°C |
| 800 ftlb | = 259.36918625505 cal20°C |
| 900 ftlb | = 291.79033453693 cal20°C |
| 1000 ftlb | = 324.21148281881 cal20°C |
| 2000 ftlb | = 648.42296563763 cal20°C |
| 4000 ftlb | = 1296.8459312753 cal20°C |
| 5000 ftlb | = 1621.0574140941 cal20°C |
| 7500 ftlb | = 2431.5861211411 cal20°C |
| 10000 ftlb | = 3242.1148281881 cal20°C |
| 25000 ftlb | = 8105.2870704704 cal20°C |
| 50000 ftlb | = 16210.574140941 cal20°C |
| 100000 ftlb | = 32421.148281881 cal20°C |
| 1000000 ftlb | = 324211.48281881 cal20°C |
| 1000000000 ftlb | = 324211482.81881 cal20°C |