Force / lbf → N
Convert Pounds-force to Newtons
Convert forces between newtons, dynes, pound-force, and kilogram-force. Convert Pounds-force (lbf) to Newtons (N). Find the formula, worked examples, unit definitions, and practical guidance below.
Reverse: Newtons to Pounds-force →
How to convert pounds-force to newtons
Kilogram-force and pound-force use standard gravity 9.80665 m/s². A kilogram or pound of mass is a different quantity; local weight depends on local gravity.
Use x for the value in lbf, b for the intermediate value in N, and y for the result in N.
N = lbf × 4.4482216152605
Worked examples
10 lbf ≈ 44.4822161526 N
Step 1: (10 × 4.44822161526) ≈ 44.4822161526 N.
Step 2: 44.4822161526 ÷ 1 ≈ 44.4822161526 N.20 lbf ≈ 88.9644323052 N
Step 1: (20 × 4.44822161526) ≈ 88.9644323052 N.
Step 2: 88.9644323052 ÷ 1 ≈ 88.9644323052 N.
Results are rounded to 12 significant digits. Converting units does not increase the precision of the original measurement. Very large or small values outside JavaScript’s finite numeric range are rejected.
About Pounds-force
Pounds-force (lbf) measures force under the conventions above. The base value in N is (x × 4.44822161526), where x is the numerical value in lbf. Factors shown here are rounded for display; calculations use the stored factor.
About Newtons
Newtons (N) measures force under the conventions above. The base value in N is (x × 1), where x is the numerical value in N. Factors shown here are rounded for display; calculations use the stored factor.
Definitions and sources
Carry the same physical assumptions into subsequent physics calculations.
Pounds-force to newtons reference table
| Pounds-force (lbf) | Newtons (N) |
|---|---|
| 1 | 4.44822161526 |
| 5 | 22.2411080763 |
| 10 | 44.4822161526 |
| 25 | 111.205540382 |
| 50 | 222.411080763 |
| 100 | 444.822161526 |
| 1000 | 4448.22161526 |
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