Ounces-force to newtons
Type a value in ounces-force to see it in newtons straight away, or type in the second box to convert back.
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Processing and privacy: The result is calculated inside your browser and your data is not sent to any server.
How to use it
- Type the value in the ounces-force box.
- Read the result in newtons as you type, and pick the precision you need.
- Swap the direction to convert back, or copy the result.
How it is calculated
N = ozf × 0.278013851
Multiply the value in ounces-force by 0.278013851 to get newtons.
Example
To convert 25 ozf to newtons: 25 × 0.278013851 = 6.95035 N.
Conversion table
| Ounces-force (ozf) | Newtons (N) |
|---|---|
| 1 | 0.278014 |
| 2 | 0.556028 |
| 3 | 0.834042 |
| 5 | 1.39007 |
| 10 | 2.78014 |
| 20 | 5.56028 |
| 25 | 6.95035 |
| 50 | 13.9007 |
| 100 | 27.8014 |
| 250 | 69.5035 |
| 500 | 139.007 |
| 1,000 | 278.014 |
About the units
- Ounce-force
- One sixteenth of a pound-force, about 0.278014 newton, used for small forces in US specifications.
- Newton
- The SI unit of force: the force that gives a mass of one kilogram an acceleration of one meter per second squared (1 N = 1 kg·m/s²).
Limits and caveats
- Results are rounded for display and computed with the browser's floating point precision (about 15 significant digits).
- Both unit factors are exact by their official definitions.
Questions about this tool
How many newtons are in one ounce-force?
1 ozf = 0.278014 N exactly.
How do I convert ounces-force to newtons?
Use N = ozf × 0.278013851. For example, 25 ozf = 6.95035 N.
How many ounces-force are in one newton?
1 N = 3.59694 ozf.
What is the difference between a kilogram and a kilogram-force?
The kilogram is a unit of mass, while the kilogram-force is the weight of that mass under standard gravity, exactly 9.80665 newtons. So a 10 kg object presses down with about 98.07 newtons.
Why are climbing ropes and anchors rated in kilonewtons?
The kilonewton is a standard force unit that suits large loads. As a quick estimate, 1 kN is about 102 kilograms-force.