Convert Kilogram-Force to Teranewtons
Convert Kilogram-Force (kgf) to Teranewtons (TN) instantly and accurately.
Conversion Formula
TN = kgf × 9.806650000e-12
About Kilogram-Force
The kilogram-force (kgf), also called the kilopond (kp), is the gravitational force on 1 kg under standard gravity - exactly 9.80665 N. It was the primary force unit in continental European engineering before SI. ISO 1000 (1973) and EU Directive 80/181/EEC deprecated it in favour of the newton. Spring and bathroom scales reading in 'kg' technically measure kgf. Older DIN and JIS materials standards give tensile strength in kgf/mm² (× 9.80665 = MPa). Hydraulic cylinder ratings in legacy European machinery use kgf or tonne-force. 1 kgf = 9.80665 N = 2.20462 lbf.
About Teranewtons
One teranewton (TN) is 10¹² N - the force scale of plate tectonics and planetary dynamics. Mantle convection drags tectonic plates with 10¹³-10¹⁵ N per plate, putting the plate-driving slab-pull force (~10¹³ N) firmly in the TN range. Mid-ocean ridge lithosphere sustains several TN per km of spreading length in tension. The tidal force differential across Earth's diameter from the Sun is ~4 × 10¹⁷ N = 4 × 10⁵ TN. Proposed megastructures (space elevators, orbital rings) would also require teranewton-scale structural capacity. 1 TN = 1,000 GN = 10¹² N ≈ 10¹¹ kgf.
Quick Reference Table
| Kilogram-Force (kgf) | Teranewtons (TN) |
|---|---|
| 1 kgf | 9.807 × 10-12 TN |
| 2 kgf | 1.961 × 10-11 TN |
| 5 kgf | 4.903 × 10-11 TN |
| 10 kgf | 9.807 × 10-11 TN |
| 25 kgf | 2.452 × 10-10 TN |
| 50 kgf | 4.903 × 10-10 TN |
| 100 kgf | 9.807 × 10-10 TN |