Femtonewton Newton
| fN N |
Femtonewton Kilonewton
| fN kN |
Femtonewton Gram-síla
| fN gf |
Femtonewton Kilogramová síla
| fN kgf |
Femtonewton Tunová síla (metrická)
| fN tf |
Femtonewton Exanewton
| fN EN |
Femtonewton Petanewton
| fN PT |
Femtonewton Teranewton
| fN TN |
Femtonewton Giganewton
| fN GN |
Femtonewton Meganewton
| fN MN |
Femtonewton Hectonewton
| fN hN |
Femtonewton Dekanewton
| fN daN |
Femtonewton Decinewton
| fN dN |
Femtonewton Centinewton
| fN cN |
Femtonewton Millinewton
| fN mN |
Femtonewton Micronewton
| fN µN |
Femtonewton Nanonewton
| fN nN |
Femtonewton Piconewton
| fN pN |
Femtonewton Attonewton
| fN aN |
Femtonewton Dyne
| fN dyn |
Femtonewton Joule/metr
| fN J/m |
Femtonewton Joule/centimetr
| fN J/cm |
Femtonewton Tunová síla (krátká)
| — |
Femtonewton Tunová síla (dlouhá)
| fN tonf (UK) |
Femtonewton Kip-force
| fN kipf |
Femtonewton Kilogramová síla
| fN kipf |
Femtonewton Libra-síla
| fN lbf |
Femtonewton Uncová síla
| fN ozf |
Femtonewton Libra
| fN pdl |
Femtonewton Libra stopa/čtvereční sekunda
| — |
Femtonewton Rybník
| fN p |
Femtonewton Kilopond
| fN kp |