The gradian, also known as a gon, is a fascinating and less commonly used unit of angular measurement. It divides a circle into 400 equal parts, unlike the more familiar degrees or radians. Interestingly, its use is more prevalent in surveying and engineering because it simplifies calculations—each right angle is exactly 100 gradians.
The gradian was introduced during the French Revolution as part of the metric system’s attempt to decimalize units of measurement. Though it didn’t gain widespread adoption, gradian remains a testament to innovative efforts in standardizing measurements. Its legacy continues, offering an intriguing alternative for those looking to simplify complex angular calculations or explore history’s impact on our mathematical tools.
A radian is a unit of angular measure used in mathematics and is crucial for its ability to maintain consistency in trigonometric calculations. It is defined as the angle formed when the arc length equals the radius of the circle. Unlike degrees, radians offer a natural connection to the properties of a circle, as there are \(2\pi\) radians in a full circle, reflecting the direct relationship with the circle’s circumference. Interestingly, radians are dimensionless, meaning they have no physical dimension, which makes them an extremely versatile unit across different applications in physics and engineering.
Radian’s significance extends beyond just academic circles; it forms the backbone of much of modern technology. For example, the calculations performed by digital devices like smartphones and computers in graphic rendering and signal processing rely heavily on radian-based trigonometry. This seamless integration into practical technology underscores the profound yet often unnoticed role radians play in our digital world. By using radians, we achieve more efficient and accurate results, highlighting their indispensable nature in both theoretical and applied sciences.
Gradians | Radians |
---|---|
0
grad
|
0
rad
|
5
grad
|
0.0785398
rad
|
10
grad
|
0.15708
rad
|
15
grad
|
0.235619
rad
|
20
grad
|
0.314159
rad
|
25
grad
|
0.392699
rad
|
30
grad
|
0.471239
rad
|
35
grad
|
0.549779
rad
|
40
grad
|
0.628319
rad
|
45
grad
|
0.706858
rad
|
50
grad
|
0.785398
rad
|
55
grad
|
0.863938
rad
|
60
grad
|
0.942478
rad
|
65
grad
|
1.02102
rad
|
70
grad
|
1.09956
rad
|
75
grad
|
1.1781
rad
|
80
grad
|
1.25664
rad
|
85
grad
|
1.33518
rad
|
90
grad
|
1.41372
rad
|
95
grad
|
1.49226
rad
|
100
grad
|
1.5708
rad
|
105
grad
|
1.64934
rad
|
110
grad
|
1.72788
rad
|
115
grad
|
1.80642
rad
|
120
grad
|
1.88496
rad
|
125
grad
|
1.9635
rad
|
130
grad
|
2.04204
rad
|
135
grad
|
2.12058
rad
|
140
grad
|
2.19911
rad
|
145
grad
|
2.27765
rad
|
150
grad
|
2.35619
rad
|
155
grad
|
2.43473
rad
|
160
grad
|
2.51327
rad
|
165
grad
|
2.59181
rad
|
170
grad
|
2.67035
rad
|
175
grad
|
2.74889
rad
|
180
grad
|
2.82743
rad
|
185
grad
|
2.90597
rad
|
190
grad
|
2.98451
rad
|
195
grad
|
3.06305
rad
|
200
grad
|
3.14159
rad
|
205
grad
|
3.22013
rad
|
210
grad
|
3.29867
rad
|
215
grad
|
3.37721
rad
|
220
grad
|
3.45575
rad
|
225
grad
|
3.53429
rad
|
230
grad
|
3.61283
rad
|
235
grad
|
3.69137
rad
|
240
grad
|
3.76991
rad
|
245
grad
|
3.84845
rad
|
250
grad
|
3.92699
rad
|
255
grad
|
4.00553
rad
|
260
grad
|
4.08407
rad
|
265
grad
|
4.16261
rad
|
270
grad
|
4.24115
rad
|
275
grad
|
4.31969
rad
|
280
grad
|
4.39823
rad
|
285
grad
|
4.47677
rad
|
290
grad
|
4.55531
rad
|
295
grad
|
4.63385
rad
|
300
grad
|
4.71239
rad
|
305
grad
|
4.79093
rad
|
310
grad
|
4.86947
rad
|
315
grad
|
4.94801
rad
|
320
grad
|
5.02655
rad
|
325
grad
|
5.10509
rad
|
330
grad
|
5.18363
rad
|
335
grad
|
5.26217
rad
|
340
grad
|
5.34071
rad
|
345
grad
|
5.41925
rad
|
350
grad
|
5.49779
rad
|
355
grad
|
5.57633
rad
|
360
grad
|
5.65487
rad
|
365
grad
|
5.73341
rad
|
370
grad
|
5.81195
rad
|
375
grad
|
5.89049
rad
|
380
grad
|
5.96903
rad
|
385
grad
|
6.04757
rad
|
390
grad
|
6.12611
rad
|
395
grad
|
6.20465
rad
|
400
grad
|
6.28319
rad
|
Conversion | Call to Action |
---|---|
Gradians to Degrees | Go to converter |
Gradians to Arcminutes | Go to converter |
Gradians to Arcseconds | Go to converter |