Convert Metric Ton-Force to Kilonewtons
Convert Metric Ton-Force (tf) to Kilonewtons (kN) instantly and accurately.
Conversion Formula
kN = tf × 9.80665
About Metric Ton-Force
One metric tonne-force (tf) is the gravitational force on 1,000 kg under standard gravity - exactly 9,806.65 N = 9.80665 kN. It dominates international heavy engineering: crane hook capacities are rated in tf (a '50-tonne crane' lifts 50 tf = 490.3 kN); ship mooring lines, anchor holding power, and cargo lashing per IMO standards are in tf; hydraulic presses for metal extrusion and stamping in Europe and Asia are rated in tf. ISO 7531 lifting-gear working load limits (WLL) use tf. 1 tf = 1,000 kgf = 9,806.65 N = 2,204.6 lbf.
About Kilonewtons
A kilonewton (kN) is 1,000 N - the standard force unit for structural engineering outside North America. A 70 kg person exerts ~0.687 kN; a heavy goods vehicle axle 100-130 kN; a loaded Boeing 747 on its landing gear ~2,800 kN. Eurocode and BS EN structural codes express beam loads and foundation reactions in kN and bending moments in kN·m. Universal testing machines for materials testing are rated 10-10,000 kN. Prestressed concrete tendons are stressed to 100-250 kN each. 1 kN = 1,000 N = 224.81 lbf = 101.97 kgf.
Quick Reference Table
| Metric Ton-Force (tf) | Kilonewtons (kN) |
|---|---|
| 1 tf | 9.80665 kN |
| 2 tf | 19.6133 kN |
| 5 tf | 49.0332 kN |
| 10 tf | 98.0665 kN |
| 25 tf | 245.166 kN |
| 50 tf | 490.332 kN |
| 100 tf | 980.665 kN |