How to convert tonnes-force to kilonewtons
kN = tf × 9.80665Multiply the value in tonnes-force by 9.80665. To go the other way, multiply by 0.1019716213 (or divide by 9.80665).
A tonne-force is larger than a kilonewton: one tonne-force contains 9.80665 kilonewtons.
Worked examples
- 1 tonne-force1 tf × 9.80665 = 9.80665 kN
- 5 tonnes-force5 tf × 9.80665 = 49.03325 kN
- 10 tonnes-force10 tf × 9.80665 = 98.0665 kN
- 20 tonnes-force20 tf × 9.80665 = 196.133 kN
- 100 tonnes-force100 tf × 9.80665 = 980.665 kN
Tonnes-force to kilonewtons conversion table
Values are calculated by the conversion engine and rounded to 8 significant figures.
| Tonnes-force (tf) | Kilonewtons (kN) |
|---|---|
| 0.1 tf | 0.980665 kN |
| 0.25 tf | 2.4516625 kN |
| 0.5 tf | 4.903325 kN |
| 1 tf | 9.80665 kN |
| 2 tf | 19.6133 kN |
| 3 tf | 29.41995 kN |
| 4 tf | 39.2266 kN |
| 5 tf | 49.03325 kN |
| 6 tf | 58.8399 kN |
| 7 tf | 68.64655 kN |
| 8 tf | 78.4532 kN |
| 9 tf | 88.25985 kN |
| 10 tf | 98.0665 kN |
| Tonnes-force (tf) | Kilonewtons (kN) |
|---|---|
| 12 tf | 117.6798 kN |
| 15 tf | 147.09975 kN |
| 20 tf | 196.133 kN |
| 25 tf | 245.16625 kN |
| 30 tf | 294.1995 kN |
| 40 tf | 392.266 kN |
| 50 tf | 490.3325 kN |
| 75 tf | 735.49875 kN |
| 100 tf | 980.665 kN |
| 250 tf | 2,451.6625 kN |
| 500 tf | 4,903.325 kN |
| 1,000 tf | 9,806.65 kN |
About the units
Tonne-force (tf)
The tonne-force (tf) is a unit of force. One tonne-force equals 9,806.65 newtons (N).
Kilonewton (kN)
One thousand newtons; used for structural loads, anchor ratings and climbing gear. One kilonewton equals 1,000 newtons (N).
Frequently asked questions
How many kilonewtons are in one tonne-force?
There are 9.80665 kilonewtons in one tonne-force, and this value is exact by definition.
How do I convert tonnes-force to kilonewtons?
Multiply the number of tonnes-force by 9.80665. For example, 10 tf × 9.80665 = 98.0665 kN.
How many tonnes-force are in one kilonewton?
One kilonewton equals 0.1019716213 tonnes-force. That is the reverse factor, 1 ÷ 9.80665.
What is 10 tonnes-force in kilonewtons?
10 tf = 98.0665 kN.
Is this tf to kN converter accurate?
Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.