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.
The kilogram-force (kgf) is a fascinating unit of force that originates from the gravitational pull exerted on a mass of one kilogram at Earth’s surface. Though it’s not a part of the International System of Units, it has historical significance in fields such as engineering and physics. One kilogram-force is equivalent to approximately 9.80665 newtons, reflecting the acceleration due to Earth’s gravity at sea level.
Interestingly, the concept of kilogram-force harkens back to times when engineers needed a more intuitive way to express force without delving into the complexities of the then-emerging newtons. Its use has diminished with the universal adoption of newtons, but it still appears in various legacy systems and specific applications, especially in countries that historically avoided metrication.
Newtons | Kilogram-forces |
---|---|
0
N
|
0
kgf
|
10
N
|
1.01968
kgf
|
20
N
|
2.03936
kgf
|
30
N
|
3.05904
kgf
|
40
N
|
4.07872
kgf
|
50
N
|
5.0984
kgf
|
60
N
|
6.11808
kgf
|
70
N
|
7.13776
kgf
|
80
N
|
8.15744
kgf
|
90
N
|
9.17712
kgf
|
100
N
|
10.1968
kgf
|
110
N
|
11.21648
kgf
|
120
N
|
12.23616
kgf
|
130
N
|
13.25584
kgf
|
140
N
|
14.27552
kgf
|
150
N
|
15.2952
kgf
|
160
N
|
16.31488
kgf
|
170
N
|
17.33456
kgf
|
180
N
|
18.35424
kgf
|
190
N
|
19.37392
kgf
|
200
N
|
20.3936
kgf
|
210
N
|
21.41328
kgf
|
220
N
|
22.43296
kgf
|
230
N
|
23.45264
kgf
|
240
N
|
24.47232
kgf
|
250
N
|
25.492
kgf
|
260
N
|
26.51168
kgf
|
270
N
|
27.53136
kgf
|
280
N
|
28.55103
kgf
|
290
N
|
29.57071
kgf
|
300
N
|
30.59039
kgf
|
310
N
|
31.61007
kgf
|
320
N
|
32.62975
kgf
|
330
N
|
33.64943
kgf
|
340
N
|
34.66911
kgf
|
350
N
|
35.68879
kgf
|
360
N
|
36.70847
kgf
|
370
N
|
37.72815
kgf
|
380
N
|
38.74783
kgf
|
390
N
|
39.76751
kgf
|
400
N
|
40.78719
kgf
|
410
N
|
41.80687
kgf
|
420
N
|
42.82655
kgf
|
430
N
|
43.84623
kgf
|
440
N
|
44.86591
kgf
|
450
N
|
45.88559
kgf
|
460
N
|
46.90527
kgf
|
470
N
|
47.92495
kgf
|
480
N
|
48.94463
kgf
|
490
N
|
49.96431
kgf
|
500
N
|
50.98399
kgf
|
510
N
|
52.00367
kgf
|
520
N
|
53.02335
kgf
|
530
N
|
54.04303
kgf
|
540
N
|
55.06271
kgf
|
550
N
|
56.08239
kgf
|
560
N
|
57.10207
kgf
|
570
N
|
58.12175
kgf
|
580
N
|
59.14143
kgf
|
590
N
|
60.16111
kgf
|
600
N
|
61.18079
kgf
|
610
N
|
62.20047
kgf
|
620
N
|
63.22015
kgf
|
630
N
|
64.23983
kgf
|
640
N
|
65.25951
kgf
|
650
N
|
66.27919
kgf
|
660
N
|
67.29887
kgf
|
670
N
|
68.31855
kgf
|
680
N
|
69.33823
kgf
|
690
N
|
70.35791
kgf
|
700
N
|
71.37759
kgf
|
710
N
|
72.39727
kgf
|
720
N
|
73.41695
kgf
|
730
N
|
74.43663
kgf
|
740
N
|
75.45631
kgf
|
750
N
|
76.47599
kgf
|
760
N
|
77.49567
kgf
|
770
N
|
78.51535
kgf
|
780
N
|
79.53503
kgf
|
790
N
|
80.55471
kgf
|
800
N
|
81.57439
kgf
|
810
N
|
82.59407
kgf
|
820
N
|
83.61375
kgf
|
830
N
|
84.63343
kgf
|
840
N
|
85.6531
kgf
|
850
N
|
86.67278
kgf
|
860
N
|
87.69246
kgf
|
870
N
|
88.71214
kgf
|
880
N
|
89.73182
kgf
|
890
N
|
90.7515
kgf
|
900
N
|
91.77118
kgf
|
910
N
|
92.79086
kgf
|
920
N
|
93.81054
kgf
|
930
N
|
94.83022
kgf
|
940
N
|
95.8499
kgf
|
950
N
|
96.86958
kgf
|
960
N
|
97.88926
kgf
|
970
N
|
98.90894
kgf
|
980
N
|
99.92862
kgf
|
990
N
|
100.9483
kgf
|
1000
N
|
101.96798
kgf
|
Conversion | Call to Action |
---|---|
Newtons to Kilonewtons | Go to converter |
Newtons to Pound-forces | Go to converter |
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