Newton (N) - Unit Information & Conversion
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What is a Newton?
The newton is the SI unit of force, measuring push or pull on an object. Named after Isaac Newton, it equals the force needed to accelerate one kilogram at one meter per second squared (1 kg⋅m/s²).
History of the Newton
Named after Sir Isaac Newton (1643-1727) who formulated the laws of motion. Officially adopted as the SI unit of force in 1948 at the 9th General Conference on Weights and Measures.
Quick Answer
What is a Newton? A newton (N) is the SI unit of force equal to 1 kg⋅m/s². It's the force needed to accelerate 1 kg at 1 m/s². For reference: 1 N ≈ weight of a small apple, 10 N ≈ strong push, 686 N ≈ weight of 70 kg person. Use our force converter to convert newtons to pounds-force, kilonewtons, and other units instantly.
Quick Comparison Table
| Newtons | Pounds-force | kN | Context | Convert Now |
|---|---|---|---|---|
| 1 | 0.225 | 0.001 | Small apple weight | N to lbf → |
| 10 | 2.25 | 0.01 | Strong hand push | N to lbf → |
| 100 | 22.5 | 0.1 | Firm hand push | N to kN → |
| 686 | 154 | 0.686 | 70 kg person weight | N to lbf → |
| 1000 | 225 | 1 | 1 kilonewton | N to kN → |
| 15000 | 3370 | 15 | Small car weight | N to kN → |
Definition
The newton (N) is the SI unit of force. 1 N = force to accelerate 1 kg mass at 1 m/s².
Formula: F = ma (Force = mass × acceleration)
Conversions:
- 1 N = 0.225 lbf (pounds-force)
- 1 N = 0.102 kgf (kilogram-force)
- 1000 N = 1 kN (kilonewton)
History
Named after Isaac Newton who formulated F = ma in 1687. Adopted as SI unit in 1948.
Common Uses
Engineering: Structural loads, material testing, mechanical design.
Physics: All force calculations, dynamics, statics.
Automotive: Braking force, thrust, suspension loads.
Aerospace: Rocket thrust, lift, drag forces.
Newton Conversion Formulas
To Millinewton:
To Kilonewton:
To Meganewton:
To Dyne:
To Pound-force:
To Kilogram-force:
To Gram-force:
To Metric Ton-force:
To US Ton-force:
To UK Ton-force:
To Poundal:
To Ounce-force:
To Kip:
Frequently Asked Questions
Formula: lbf = N × 0.224809 Examples:
- 100 N = 22.5 lbf
- 500 N = 112 lbf
- 1000 N = 225 lbf
- 4448 N = 1000 lbf Newtons to Pounds-force converter →
Convert Newton
Need to convert Newton to other force units? Use our conversion tool.