Convert Ounces-force to Kilonewtons
1 ounce-force (ozf) equals 0.000278013851 kilonewtons (kN).
1 ozf = 0.000278013851 kN
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk ounce-force to kilonewton converter to paste a column from Excel.
How to Convert Ounce-force to Kilonewton
- 1 ozf = 0.000278013851 kN
- 1 kN = 3596.94309 ozf
- Example: convert 15 ozf to kN: 15 ozf = 15 × 0.000278013851 kN = 0.004170207764 kN
Formula
kN = ozf × 0.0002780138509538
or kN = ozf ÷ 3596.943089595
Derivation from SI units:
- 1 ozf = 1/16 lbf = 0.27801385095378 N
- 1 kN = 10³ N
- 1 ozf = 0.2780138509538 N ÷ 1000 N per kN = 0.0002780138509538 kN
Both units are defined exactly, so the factor is exact. Ounce-force definition: ounce-force; Kilonewton definition: kilonewton.
Worked examples
- A reading of 4 ozf converts to 0.001112055404 kN.
4 ozf × 0.000278013851 = 0.001112055404 kN - A value of 16 ozf is 0.004448221615 kN.
16 ozf × 0.000278013851 = 0.004448221615 kN
Ounce-force to Kilonewton conversion table
| Ounces-force (ozf) | Kilonewtons (kN) |
|---|---|
| 0.5 ozf | 0.0001390069255 kN |
| 1 ozf | 0.000278013851 kN |
| 2 ozf | 0.0005560277019 kN |
| 4 ozf | 0.001112055404 kN |
| 8 ozf | 0.002224110808 kN |
| 10 ozf | 0.00278013851 kN |
| 16 ozf | 0.004448221615 kN |
| 32 ozf | 0.008896443231 kN |
| 64 ozf | 0.01779288646 kN |
| 100 ozf | 0.0278013851 kN |
Where it's used
Ounces-force are used for small spring and switch forces, while kilonewtons appear in climbing gear strength (carabiners ≈ 22–25 kN). Both measure force, so the conversion is a fixed factor.
Ounce-force to other force units
| Conversion | 1 ozf equals |
|---|---|
| ounce-force to newton | 0.278013851 N |
| ounce-force to kilonewton | 0.000278013851 kN |
| ounce-force to pound-force | 0.0625 lbf |
| ounce-force to kilogram-force | 0.02834952313 kgf |
| ounce-force to kip | 0.0000625 kip |
| ounce-force to dyne | 27801.3851 dyn |
| ounce-force to gram-force | 28.34952313 gf |
Frequently asked questions
How many kilonewtons are in 1 ounce-force?
1 ozf = 0.000278013851 kN.
How do I convert ounces-force to kilonewtons?
Multiply the value in ozf by 0.000278013851, or divide it by 3596.94309. For example, 15 ozf × 0.000278013851 = 0.004170207764 kN.
Is the ozf to kN conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
Sources
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "ounce (avoirdupois)-force (ozf)".
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 7, SI prefixes.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Ounces-force to Kilonewtons. Retrieved October 17, 2026, from https://scientificconverters.com/force/ounce-force-to-kilonewtons/
IEEE
Scientific Converters, "Convert Ounces-force to Kilonewtons," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/force/ounce-force-to-kilonewtons/