Convert Femtonewtons to Decanewtons
Convert Femtonewtons (fN) to Decanewtons (daN) instantly and accurately.
Conversion Formula
daN = fN × 1.000000000e-16
About Femtonewtons
A femtonewton (fN) is 10⁻¹⁵ N - the force scale of single-molecule biology. RNA polymerase exerts a stall force of ~14-25 fN while transiting DNA at 10-50 bp/s. Myosin V motor proteins step 37 nm with ~1-3 fN per head. The viscous drag on a 100 nm nanoparticle moving at 1 µm/s through cytoplasm is ~0.2-0.5 fN. Optical tweezers with back-focal-plane detection resolve sub-femtonewton forces, enabling measurement of single-enzyme output. AFM receptor-ligand unbinding (e.g., biotin-streptavidin) gives adhesion forces of 100-300 fN. 1 fN = 10⁻¹⁵ N.
About Decanewtons
One decanewton (daN) is exactly 10 N. It is industrially significant in Europe because 1 daN ≈ 1 kgf (9.80665 N, a 2% difference), allowing gauges calibrated in daN to give readings that approximate kilogram-weight while remaining SI-compliant. ISO 376 and EN 13791 load-cell calibration standards use daN. ECE Regulation 16 (vehicle seat belts) and EN ISO 13857 (machinery safety distances) specify forces in daN. Continental European spring gauges and tensile testers routinely carry daN scales. 1 daN = 10 N = 1.01972 kgf = 2.24809 lbf.
Quick Reference Table
| Femtonewtons (fN) | Decanewtons (daN) |
|---|---|
| 1 fN | 1 × 10-16 daN |
| 2 fN | 2 × 10-16 daN |
| 5 fN | 5 × 10-16 daN |
| 10 fN | 1 × 10-15 daN |
| 25 fN | 2.5 × 10-15 daN |
| 50 fN | 5 × 10-15 daN |
| 100 fN | 1 × 10-14 daN |