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Convert Mph to Kt

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Speed Converter

Easily convert between Kilometers per Hour (km/h), Miles per Hour (mph), Meters per Second (m/s), Feet per Second (ft/s), Knots (kt), and Mach. Whether you're measuring car speed, aircraft velocity, or physics experiment values, this tool gives you fast and accurate conversions.

Why Use It?

  • Ideal for travel, sports timing, aeronautics, and scientific calculations.
  • Converts between metric and imperial speed units.
  • Accurate to four decimal places.
  • Great for students, pilots, athletes, and engineers alike.

Popular Conversions

Common Speed Units and Their Uses

  • Car icon representing km/h for road speeds

    Kilometers per Hour (km/h)

    Common for road speeds worldwide.

  • Route icon representing mph for road speeds

    Miles per Hour (mph)

    Used in U.S./UK for road speeds.

  • Atom icon representing meters per second in science

    Meters per Second (m/s)

    SI unit, science and engineering.

  • Circle icon representing feet per second in physics

    Feet per Second (ft/s)

    Used in ballistics and physics.

  • Anchor icon representing knots in maritime and aviation

    Knots (kt)

    Maritime and aviation speed.

  • Plane icon representing Mach speed relative to sound

    Mach

    Relative to speed of sound.

Real-World Use Cases for Speed Conversion

  • Plane icon representing speed conversions in travel

    Travel

    Convert car or bike speeds while abroad.

  • Ship icon representing speed conversions in aviation and marine navigation

    Aviation & Marine

    Standardize speeds in navigation and transportation.

  • Running icon representing speed conversions in athletics

    Athletics

    Analyze race speeds and training performance.

  • Atom icon representing speed conversions in physics and engineering

    Physics & Engineering

    Solve speed-related problems in technical fields.

  • Rocket icon representing aerospace speed conversions near the sound barrier

    Aerospace

    Calculate and compare speeds near the sound barrier.

Frequently Asked Questions

What is Mach speed?

Mach is a ratio comparing an object's speed to the speed of sound in air. Mach 1 equals the speed of sound (approx. 343 m/s or 1,235 km/h) at sea level under standard atmospheric conditions.

How many mph is 100 km/h?

100 kilometers per hour is approximately 62.1371 miles per hour.

Why do airplanes use knots instead of km/h or mph?

Knots are based on nautical miles, which relate closely to lines of latitude and longitude. This makes them especially useful for navigation over the Earth's curved surface.

Are m/s and km/h interchangeable?

They measure the same quantity (speed), but 1 m/s = 3.6 km/h. So, they are not numerically equivalent and require conversion.

Miles per hour (mph) to Knots (kt) Conversion Table

Miles per hour (mph)Knots (kt)
10.869
21.738
32.607
43.476
54.345
65.214
76.083
86.952
97.821
108.69
119.559
1210.428
1311.297
1412.166
1513.035
1613.904
1714.773
1815.642
1916.511
2017.38
2118.249
2219.117
2319.986
2420.855
2521.724
2622.593
2723.462
2824.331
2925.2
3026.069
3126.938
3227.807
3328.676
3429.545
3530.414
3631.283
3732.152
3833.021
3933.89
4034.759
4135.628
4236.497
4337.366
4438.235
4539.104
4639.973
4740.842
4841.711
4942.58
5043.449
5144.318
5245.187
5346.056
5446.925
5547.794
5648.663
5749.532
5850.401
5951.27
6052.139
6153.008
6253.876
6354.745
6455.614
6556.483
6657.352
6758.221
6859.09
6959.959
7060.828
7161.697
7262.566
7363.435
7464.304
7565.173
7666.042
7766.911
7867.78
7968.649
8069.518
8170.387
8271.256
8372.125
8472.994
8573.863
8674.732
8775.601
8876.47
8977.339
9078.208
9179.077
9279.946
9380.815
9481.684
9582.553
9683.422
9784.291
9885.16
9986.029
10086.898
10187.767
10288.635
10389.504
10490.373
10591.242
10692.111
10792.98
10893.849
10994.718
11095.587
11196.456
11297.325
11398.194
11499.063
11599.932
116100.801
117101.67
118102.539
119103.408
120104.277
121105.146
122106.015
123106.884
124107.753
125108.622
Miles per hour (mph)Knots (kt)
126109.491
127110.36
128111.229
129112.098
130112.967
131113.836
132114.705
133115.574
134116.443
135117.312
136118.181
137119.05
138119.919
139120.788
140121.657
141122.525
142123.394
143124.263
144125.132
145126.001
146126.87
147127.739
148128.608
149129.477
150130.346
151131.215
152132.084
153132.953
154133.822
155134.691
156135.56
157136.429
158137.298
159138.167
160139.036
161139.905
162140.774
163141.643
164142.512
165143.381
166144.25
167145.119
168145.988
169146.857
170147.726
171148.595
172149.464
173150.333
174151.202
175152.071
176152.94
177153.809
178154.678
179155.547
180156.416
181157.284
182158.153
183159.022
184159.891
185160.76
186161.629
187162.498
188163.367
189164.236
190165.105
191165.974
192166.843
193167.712
194168.581
195169.45
196170.319
197171.188
198172.057
199172.926
200173.795
201174.664
202175.533
203176.402
204177.271
205178.14
206179.009
207179.878
208180.747
209181.616
210182.485
211183.354
212184.223
213185.092
214185.961
215186.83
216187.699
217188.568
218189.437
219190.306
220191.175
221192.043
222192.912
223193.781
224194.65
225195.519
226196.388
227197.257
228198.126
229198.995
230199.864
231200.733
232201.602
233202.471
234203.34
235204.209
236205.078
237205.947
238206.816
239207.685
240208.554
241209.423
242210.292
243211.161
244212.03
245212.899
246213.768
247214.637
248215.506
249216.375
250217.244
Miles per hour (mph)Knots (kt)
251218.113
252218.982
253219.851
254220.72
255221.589
256222.458
257223.327
258224.196
259225.065
260225.933
261226.802
262227.671
263228.54
264229.409
265230.278
266231.147
267232.016
268232.885
269233.754
270234.623
271235.492
272236.361
273237.23
274238.099
275238.968
276239.837
277240.706
278241.575
279242.444
280243.313
281244.182
282245.051
283245.92
284246.789
285247.658
286248.527
287249.396
288250.265
289251.134
290252.003
291252.872
292253.741
293254.61
294255.479
295256.348
296257.217
297258.086
298258.955
299259.824
300260.692
301261.561
302262.43
303263.299
304264.168
305265.037
306265.906
307266.775
308267.644
309268.513
310269.382
311270.251
312271.12
313271.989
314272.858
315273.727
316274.596
317275.465
318276.334
319277.203
320278.072
321278.941
322279.81
323280.679
324281.548
325282.417
326283.286
327284.155
328285.024
329285.893
330286.762
331287.631
332288.5
333289.369
334290.238
335291.107
336291.976
337292.845
338293.714
339294.583
340295.451
341296.32
342297.189
343298.058
344298.927
345299.796
346300.665
347301.534
348302.403
349303.272
350304.141
351305.01
352305.879
353306.748
354307.617
355308.486
356309.355
357310.224
358311.093
359311.962
360312.831
361313.7
362314.569
363315.438
364316.307
365317.176
366318.045
367318.914
368319.783
369320.652
370321.521
371322.39
372323.259
373324.128
374324.997
375325.866
Miles per hour (mph)Knots (kt)
376326.735
377327.604
378328.473
379329.341
380330.21
381331.079
382331.948
383332.817
384333.686
385334.555
386335.424
387336.293
388337.162
389338.031
390338.9
391339.769
392340.638
393341.507
394342.376
395343.245
396344.114
397344.983
398345.852
399346.721
400347.59
401348.459
402349.328
403350.197
404351.066
405351.935
406352.804
407353.673
408354.542
409355.411
410356.28
411357.149
412358.018
413358.887
414359.756
415360.625
416361.494
417362.363
418363.232
419364.1
420364.969
421365.838
422366.707
423367.576
424368.445
425369.314
426370.183
427371.052
428371.921
429372.79
430373.659
431374.528
432375.397
433376.266
434377.135
435378.004
436378.873
437379.742
438380.611
439381.48
440382.349
441383.218
442384.087
443384.956
444385.825
445386.694
446387.563
447388.432
448389.301
449390.17
450391.039
451391.908
452392.777
453393.646
454394.515
455395.384
456396.253
457397.122
458397.991
459398.859
460399.728
461400.597
462401.466
463402.335
464403.204
465404.073
466404.942
467405.811
468406.68
469407.549
470408.418
471409.287
472410.156
473411.025
474411.894
475412.763
476413.632
477414.501
478415.37
479416.239
480417.108
481417.977
482418.846
483419.715
484420.584
485421.453
486422.322
487423.191
488424.06
489424.929
490425.798
491426.667
492427.536
493428.405
494429.274
495430.143
496431.012
497431.881
498432.75
499433.618
500434.487
Mph to Kt Conversion | 757 Box