The newton, symbolized as “N,” is a unit of force in the International System of Units (SI), named after Sir Isaac Newton in recognition of his groundbreaking contributions to physics and calculus. One newton is defined as the force required to accelerate a one-kilogram object by one meter per second squared. While often seen as a standard measurement today, the concept was revolutionary in understanding and quantifying the forces that govern motion.
In everyday terms, a single newton is roughly the force of gravity acting on a small apple, exemplifying Newton’s famous apple story in a tangible way. This relatable image of a newton provides a perspective on how forces influence our world, connecting abstract physics with the tangible experiences of everyday life.
Pound-force is a fascinating unit that merges the concept of mass and gravity, rooted deeply in the imperial system. It represents the force exerted by gravity on a one-pound object at the Earth’s surface. Interestingly, the distinction between pound-force and pound-mass became vital as precision in science and engineering increased, leading to the creation of a standard gravitational constant. Unlike the pound used for weight, pound-force considers the acceleration due to gravity, approximately 32.174 ft/s², offering a glimpse into how we measure force beyond just mass.
In practical terms, the concept of pound-force is woven into everyday life, particularly in the United States, where the imperial system is prevalent. For example, when you hear that a tire is inflated to 30 psi (pounds per square inch), those “pounds” refer to pound-force. Understanding this unit gives an insight into how force impacts our daily mechanics, from vehicle dynamics to the tension in a bridge cable, illustrating the omnipresence of physics in our bustling world.
Newtons | Pound-forces |
---|---|
0
N
|
0
lbf
|
10
N
|
2.24809
lbf
|
20
N
|
4.49618
lbf
|
30
N
|
6.74427
lbf
|
40
N
|
8.99236
lbf
|
50
N
|
11.24045
lbf
|
60
N
|
13.48854
lbf
|
70
N
|
15.73663
lbf
|
80
N
|
17.98472
lbf
|
90
N
|
20.23281
lbf
|
100
N
|
22.4809
lbf
|
110
N
|
24.72899
lbf
|
120
N
|
26.97708
lbf
|
130
N
|
29.22517
lbf
|
140
N
|
31.47326
lbf
|
150
N
|
33.72135
lbf
|
160
N
|
35.96944
lbf
|
170
N
|
38.21753
lbf
|
180
N
|
40.46562
lbf
|
190
N
|
42.71371
lbf
|
200
N
|
44.9618
lbf
|
210
N
|
47.2099
lbf
|
220
N
|
49.45799
lbf
|
230
N
|
51.70608
lbf
|
240
N
|
53.95417
lbf
|
250
N
|
56.20226
lbf
|
260
N
|
58.45035
lbf
|
270
N
|
60.69844
lbf
|
280
N
|
62.94653
lbf
|
290
N
|
65.19462
lbf
|
300
N
|
67.44271
lbf
|
310
N
|
69.6908
lbf
|
320
N
|
71.93889
lbf
|
330
N
|
74.18698
lbf
|
340
N
|
76.43507
lbf
|
350
N
|
78.68316
lbf
|
360
N
|
80.93125
lbf
|
370
N
|
83.17934
lbf
|
380
N
|
85.42743
lbf
|
390
N
|
87.67552
lbf
|
400
N
|
89.92361
lbf
|
410
N
|
92.1717
lbf
|
420
N
|
94.41979
lbf
|
430
N
|
96.66788
lbf
|
440
N
|
98.91597
lbf
|
450
N
|
101.16406
lbf
|
460
N
|
103.41215
lbf
|
470
N
|
105.66024
lbf
|
480
N
|
107.90833
lbf
|
490
N
|
110.15642
lbf
|
500
N
|
112.40451
lbf
|
510
N
|
114.6526
lbf
|
520
N
|
116.90069
lbf
|
530
N
|
119.14878
lbf
|
540
N
|
121.39687
lbf
|
550
N
|
123.64496
lbf
|
560
N
|
125.89305
lbf
|
570
N
|
128.14114
lbf
|
580
N
|
130.38923
lbf
|
590
N
|
132.63732
lbf
|
600
N
|
134.88541
lbf
|
610
N
|
137.13351
lbf
|
620
N
|
139.3816
lbf
|
630
N
|
141.62969
lbf
|
640
N
|
143.87778
lbf
|
650
N
|
146.12587
lbf
|
660
N
|
148.37396
lbf
|
670
N
|
150.62205
lbf
|
680
N
|
152.87014
lbf
|
690
N
|
155.11823
lbf
|
700
N
|
157.36632
lbf
|
710
N
|
159.61441
lbf
|
720
N
|
161.8625
lbf
|
730
N
|
164.11059
lbf
|
740
N
|
166.35868
lbf
|
750
N
|
168.60677
lbf
|
760
N
|
170.85486
lbf
|
770
N
|
173.10295
lbf
|
780
N
|
175.35104
lbf
|
790
N
|
177.59913
lbf
|
800
N
|
179.84722
lbf
|
810
N
|
182.09531
lbf
|
820
N
|
184.3434
lbf
|
830
N
|
186.59149
lbf
|
840
N
|
188.83958
lbf
|
850
N
|
191.08767
lbf
|
860
N
|
193.33576
lbf
|
870
N
|
195.58385
lbf
|
880
N
|
197.83194
lbf
|
890
N
|
200.08003
lbf
|
900
N
|
202.32812
lbf
|
910
N
|
204.57621
lbf
|
920
N
|
206.8243
lbf
|
930
N
|
209.07239
lbf
|
940
N
|
211.32048
lbf
|
950
N
|
213.56857
lbf
|
960
N
|
215.81666
lbf
|
970
N
|
218.06475
lbf
|
980
N
|
220.31284
lbf
|
990
N
|
222.56093
lbf
|
1000
N
|
224.80902
lbf
|
Conversion | Call to Action |
---|---|
Newtons to Kilonewtons | Go to converter |
Newtons to Kilogram-forces | Go to converter |
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