Pound-Force to Newtons Conversion (lbf to N)

Pound-Force to Newtons Converter

Enter the force in pound-force below to get the value converted to newtons.

Results in Newtons:

1 lbf = 4.448222 N

How to Convert Pound-Force to Newtons

To convert a measurement in pound-force to a measurement in newtons, multiply the force by the following conversion ratio: 4.448222 newtons/pound-force.

Since one pound-force is equal to 4.448222 newtons, you can use this simple formula to convert:

newtons = pound-force × 4.448222

The force in newtons is equal to the force in pound-force multiplied by 4.448222.

For example, here's how to convert 5 pound-force to newtons using the formula above.

newtons = (5 lbf × 4.448222) = 22.241108 N

How Many Newtons Are in a Pound-Force?

There are 4.448222 newtons in a pound-force, which is why we use this value in the formula above.

1 lbf = 4.448222 N

Pound-force and newtons are both units used to measure force. Keep reading to learn more about each unit of measure.

What is Pound-Force?

Pound-force is a unit of force equal to the force needed to move one pound of mass at a rate of 32.174049 feet per second squared.

The pound-force is a US customary and imperial unit of force. Pound-force is sometimes also referred to as a pound of force. Pound-force can be abbreviated as lbf, and are also sometimes abbreviated as lb_F. For example, 1 pound-force can be written as 1 lbf or 1 lb_F.

Pound-force can be expressed using the formula: 1 lbf = 32.174049 lbft / s²

Learn more about pound-force.

What is a Newton?

The newton is a unit to for measuring force equal to the force needed to move one kilogram of mass at a rate of one meter per second squared.^[1]

The newton is the SI derived unit for force in the metric system. Newtons can be abbreviated as N; for example, 1 newton can be written as 1 N.

Newtons can be expressed using the formula: 1 N = 1 kgm / s²

Learn more about newtons.

Pound-Force to Newton Conversion Table

Table showing various pound-force measurements converted to newtons.
Pound-force	Newtons
1 lbf	4.4482 N
2 lbf	8.8964 N
3 lbf	13.34 N
4 lbf	17.79 N
5 lbf	22.24 N
6 lbf	26.69 N
7 lbf	31.14 N
8 lbf	35.59 N
9 lbf	40.03 N
10 lbf	44.48 N
11 lbf	48.93 N
12 lbf	53.38 N
13 lbf	57.83 N
14 lbf	62.28 N
15 lbf	66.72 N
16 lbf	71.17 N
17 lbf	75.62 N
18 lbf	80.07 N
19 lbf	84.52 N
20 lbf	88.96 N
21 lbf	93.41 N
22 lbf	97.86 N
23 lbf	102.31 N
24 lbf	106.76 N
25 lbf	111.21 N
26 lbf	115.65 N
27 lbf	120.1 N
28 lbf	124.55 N
29 lbf	129 N
30 lbf	133.45 N
31 lbf	137.89 N
32 lbf	142.34 N
33 lbf	146.79 N
34 lbf	151.24 N
35 lbf	155.69 N
36 lbf	160.14 N
37 lbf	164.58 N
38 lbf	169.03 N
39 lbf	173.48 N
40 lbf	177.93 N

Table showing various pound-force measurements converted to newtons.

Pound-force

Newtons

1 lbf

4.4482 N

2 lbf

8.8964 N

3 lbf

13.34 N

4 lbf

17.79 N

5 lbf

22.24 N

6 lbf

26.69 N

7 lbf

31.14 N

8 lbf

35.59 N

9 lbf

40.03 N

10 lbf

44.48 N

11 lbf

48.93 N

12 lbf

53.38 N

13 lbf

57.83 N

14 lbf

62.28 N

15 lbf

66.72 N

16 lbf

71.17 N

17 lbf

75.62 N

18 lbf

80.07 N

19 lbf

84.52 N

20 lbf

88.96 N

21 lbf

93.41 N

22 lbf

97.86 N

23 lbf

102.31 N

24 lbf

106.76 N

25 lbf

111.21 N

26 lbf

115.65 N

27 lbf

120.1 N

28 lbf

124.55 N

29 lbf

129 N

30 lbf

133.45 N

31 lbf

137.89 N

32 lbf

142.34 N

33 lbf

146.79 N

34 lbf

151.24 N

35 lbf

155.69 N

36 lbf

160.14 N

37 lbf

164.58 N

38 lbf

169.03 N

39 lbf

173.48 N

40 lbf

177.93 N

References

Z. J. Jabbour and S. L. Yaniv, The Kilogram and Measurements of Mass and Force, Journal of Research of the National Institute of Standards and Technology, https://www.nist.gov/system/files/documents/calibrations/j61jab.pdf