The following units are available for use in CFS.
| in | inches |
| ft | feet |
| mm | millimeters |
| cm | centimeters |
| m | meters |
| deg | degrees |
| rad | radians |
| grad | grads |
| lb | pounds |
| k | kips |
| N | Newtons |
| kN | kilonewtons |
| kgf | kilograms force |
| tonne | metric tonne |
| psi | pounds per square inch |
| ksi | kips per square inch |
| psf | pounds per square foot |
| ksf | kips per square foot |
| Pa | Pascals |
| kPa | kilopascals |
| MPa | megapascals |
| GPa | gigapascals |
| kgf/mm^2 | kilograms force per square millimeter |
| kgf/m^2 | kilograms force per square meter |
| tonne/m^2 | metric tonnes per square meter |
| lb-in | pound inches |
| lb-ft | pound feet |
| k-in | kip inches |
| k-ft | kip feet |
| N-mm | Newton millimeters |
| N-m | Newton meters |
| kN-mm | kilonewton millimeters |
| kN-m | kilonewton meters |
| kgf-mm | kilogram force millimeters |
| kgf-m | kilogram force meters |
| tonne-m | metric tonne meters |
| lb/in | pounds per inch |
| lb/ft | pounds per foot |
| k/in | kips per inch |
| k/ft | kip per foot |
| N/mm | Newtons per millimeter |
| N/m | Newtons per meter |
| kN/mm | kilonewtons per millimeter |
| kN/m | kilonewtons per meter |
| kgf/mm | kilograms force per millimeter |
| kgf/m | kilograms force per meter |
| tonne/m | metric tonnes per meter |