Convert Short Ton-Force to Kilogram-Force

Convert Short Ton-Force (tf (US)) to Kilogram-Force (kgf) instantly and accurately.

Short Ton-Force (tf (US))
Kilogram-Force (kgf)

Conversion Formula

kgf = tf (US) × 907.18474

About Short Ton-Force

One short ton-force is the gravitational force on a US short ton (2,000 lb) - exactly 2,000 lbf ≈ 8,896 N. It is used in heavy US industry for hydraulic press force ratings, forging press capacities, crane lift ratings, and bulldozer drawbar pull. US rigging and lifting equipment is rated in short tons. Caution: short ton-force (8,896 N) vs metric tonne-force (9,807 N) vs long ton-force (9,964 N) introduces up to 12% ambiguity when 'ton capacity' is unqualified - a critical safety distinction. 1 short tf = 2,000 lbf = 2 kip = 8,896.44 N.

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.

Quick Reference Table

Short Ton-Force (tf (US))Kilogram-Force (kgf)
1 tf (US)907.185 kgf
2 tf (US)1814.37 kgf
5 tf (US)4535.92 kgf
10 tf (US)9071.85 kgf
25 tf (US)22679.6 kgf
50 tf (US)45359.2 kgf
100 tf (US)90718.5 kgf

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