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Pounds-Force to Kilonewtons Converter

lbf → kN: type a value and the result appears instantly.

1 lbf = 0.004448221615 kN
1 kN = 224.8089431 lbf
—

How to convert pounds-force to kilonewtons

Use this formula:

kN = lbf × 0.004448221615

Examples

lbf to kN conversion chart

pounds-force (lbf)kilonewtons (kN)
0.1 lbf0.000444822 kN
0.25 lbf0.00111206 kN
0.5 lbf0.00222411 kN
1 lbf0.00444822 kN
2 lbf0.00889644 kN
3 lbf0.0133447 kN
4 lbf0.0177929 kN
5 lbf0.0222411 kN
6 lbf0.0266893 kN
7 lbf0.0311376 kN
8 lbf0.0355858 kN
9 lbf0.040034 kN
10 lbf0.0444822 kN
12 lbf0.0533787 kN
15 lbf0.0667233 kN
20 lbf0.0889644 kN
25 lbf0.111206 kN
30 lbf0.133447 kN
40 lbf0.177929 kN
50 lbf0.222411 kN
60 lbf0.266893 kN
70 lbf0.311376 kN
75 lbf0.333617 kN
80 lbf0.355858 kN
90 lbf0.40034 kN
100 lbf0.444822 kN
150 lbf0.667233 kN
200 lbf0.889644 kN
250 lbf1.11206 kN
500 lbf2.22411 kN
1,000 lbf4.44822 kN

About the units

Pound-force (lbf) is a US customary / imperial unit. 1 lbf = 4.448221615 N.

Kilonewton (kN) is a metric (SI) unit. 1 kN = 1,000 N.

Frequently asked questions

How do I convert pounds-force to kilonewtons?
Multiply the value in lbf by 0.004448221615.
How many kilonewtons are in 1 pound-force?
1 lbf = 0.004448221615 kN.
What is 12 lbf in kN?
12 lbf = 0.0533787 kN.
How do I convert kilonewtons to pounds-force?
Use the reverse converter: kN → lbf.

Force Converter →

Sources: NIST SP 811 · BIPM SI Brochure · NIST Handbook 44. Last reviewed: 2026-10 · FreeUnitConverters