Convert Force Units
Force Converter
Quick Reference Chart — Force Units
Newton, Pound Force, Kilogram Force
| 1 N | = | 0.22481 lbf | |
| 1 lbf | = | 4.44822 N | |
| 1 kgf | = | 9.80665 N | exact |
| 1 kgf | = | 2.20462 lbf | |
| 1 kN | = | 1,000 N | exact |
| 1 kN | = | 224.81 lbf |
Kip and Large Forces
| 1 kip | = | 1,000 lbf | exact |
| 1 kip | = | 4,448.22 N | |
| 1 kip | = | 4.44822 kN |
Common Force References
| Apple weight | ≈ | 1 N |
| Push a door | ≈ | 10–20 N |
| Handshake | ≈ | 50 N |
| Body weight (70 kg) | ≈ | 686 N |
| Car braking | ≈ | 5,000–10,000 N |
About Force Units
Force vs Mass
Newton measures force. Kilogram measures mass. On Earth, 1 kg of mass exerts 9.807 N of gravitational force. In zero gravity, 1 kg still has mass but exerts 0 N of force.
Engineering (US)
US engineers use pound-force (lbf) and kips (1 kip = 1,000 lbf). Structural engineering in the US uses kips almost exclusively for beam and column loads.
Engineering (International)
International standards use newtons (N) and kilonewtons (kN). Building codes in Europe, Asia, and Australia specify loads in kN or kN/m².
lbf vs lbs
lbf = pound-force (a unit of force). lbs = pounds (typically mass). On Earth’s surface, they are numerically equal — a 10 lb mass exerts 10 lbf of gravitational force.
Popular Force Conversions
N ↔ lbf
- Newtons to Pound Force — × 0.22481
- Pound Force to Newtons — × 4.44822
kN ↔ lbf
kgf ↔ N
- Kilogram Force to Newtons — × 9.80665
- Newtons to Kilogram Force
Frequently Asked Questions
How do I convert Newtons to pounds force?
Multiply the Newton value by 0.22481 to get pounds force. For example, 100 N × 0.22481 = 22.48 lbf. Our converter handles this instantly for any value.
Is a Newton the same as a kilogram?
No. A Newton is a unit of force, while a kilogram is a unit of mass. On Earth, 1 kg of mass exerts 9.807 N of gravitational force. In zero gravity, 1 kg still has mass but exerts 0 N of force.
What is a kip?
A kip equals exactly 1,000 pounds force (lbf). It is used in US structural engineering to express large forces without writing thousands. 1 kip = 4,448.2 N = 4.448 kN.
What is the difference between lbf and lbs?
lbf (pound force) is a unit of force. lbs (pounds) typically refers to mass. On Earth's surface, they are numerically equal — a 10 lb mass exerts 10 lbf of gravitational force.
Force conversion factors follow NIST SP 811 and ISO 80000-4. The newton (N) is the SI unit of force. Standard gravity: g₀ = 9.80665 m/s² (exact).
