A ton-force is one of various units of force defined as the weight of one ton due to standard gravity .[ note 1] The precise definition depends on the definition of ton used.
Tonne-force The tonne-force (tf or tf )[ note 2] is equal to the weight of one (metric) tonne .
Long ton-force The long ton-force is equal to the weight of one long ton .
one long ton-force = 2240 lbf = 1016.046 9088 kgf = 9.964016 418 183 52 kN = 1.12 short tons-force[ note 7] ≈ 72069.87 pdl[ note 8]
Short ton-force The short ton-force is equal to the weight of one short ton .
one short ton-force = 2000 lbf = 907.18474 kgf = 8.896443 230 521 kN ≈ 0.892857 long tons-force[ note 9] ≈ 64348.10 pdl[ note 10]
Notes ^ All calculations on this page assume the following definition of standard gravity, g 0 . g 0 = 9.80665 m/s2 ^ The tonne-force, also known as the metric ton force, is equivalent to the megagram-force (Mgf or Mgf ) and the megapond (Mp). ^ 1 pound = 0.453592 37 kg ∴ 1 tonne-force = 1000 / 0.453592 37 lbf ≈ 2204.622 621 848 87 lbf
^ 1 long ton = 1.016046 9088 t ∴ 1 tonne-force = 1 / 1.016046 9088 long tons-force ≈ 0.984206 527 611 06 long tons-force
^ 1 short ton = 0.907184 74 t ∴ 1 tonne-force = 1 / 0.907184 74 short tons-force ≈ 1.102311 310 9244 short tons-force
^ 1 pdl = 0.138254 954 376 N ∴ 1 tonne-force = 9806.65 / 0.138254 954 376 pdl ≈ 70931.635 283 968 pdl
^ 1 long ton-force = 2240 / 2000 short tons-force = 1.12 short tons-force
^ g 0 = 9.80665 / 0.3048 ft/s2 ∴ 1 long ton-force = 2240 lb × 9.80665 / 0.3048 ft/s2 = 27458 620 / 381 pdl ≈ 72069.868 766 404 pdl
^ 1 short ton-force = 2000 / 2240 long tons-force = 25 / 28 long tons-force = 0.892857 14 long tons-force
^ 1 short ton-force = 2000 lb × 9.80665 / 0.3048 ft/s2 = 24516 625 / 381 pdl ≈ 64348.097 11 pdl