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Tonne-force (metric) (tf)

Force of standard gravity on one metric tonne: exactly 9806.65 newtons.

What is a tonne-force?

Symbol
tf
Quantity
Force
Unit system
metric
Definition
Force of standard gravity on one metric tonne: exactly 9806.65 newtons.
Exact
Yes, the value is exact by definition
Source
NIST Special Publication 811 (2008), Appendix B.8

Common applications

Used for press capacities, lifting equipment and crane ratings in metric countries.

Tonne-force (metric) in other force units

Tonne-force (metric) quick reference

Tonne-force (metric) in other units
Tonne-force (metric)KilonewtonNewtonPound-force
1 tf= 9.80665 kN= 9806.65 N≈ 2204.622622 lbf
10 tf= 98.0665 kN= 98066.5 N≈ 22046.22622 lbf
100 tf= 980.665 kN= 980665 N≈ 220462.2622 lbf
1000 tf= 9806.65 kN= 9806650 N≈ 2204622.622 lbf

Where the tonne-force fits

The next smaller force unit is the short ton-force (tonf (US)). 1 tf ≈ 1.102311311 tonf (US), and 1 tonf (US) = 0.90718474 tf.

The next larger force unit is the long ton-force (tonf (UK)). 1 tf ≈ 0.9842065276 tonf (UK), and 1 tonf (UK) = 1.0160469088 tf.

Frequently asked questions

How many kilonewtons are in one tonne-force?
One tonne-force = 9.80665 kN (kilonewtons).
How many newtons are in one tonne-force?
One tonne-force = 9806.65 N (newtons).
How many pounds-force are in one tonne-force?
One tonne-force ≈ 2204.622622 lbf (pounds-force).