Knots to MPH | Convert Knots to MPH

How to Convert Between Knots and Miles Per Hour

When working with transportation speeds, there is often a need to convert between knots and miles per hour (MPH). While knots are used for maritime and air speeds, MPH is used for ground speeds. Converting between them allows for consistent performance comparisons.

Understanding the Difference

A knot is defined as 1 nautical mile traveled per hour. Since a nautical mile is 15% longer than a standard mile, speeds in knots cover more distance.

| 1 nautical mile | = | 1.15 miles| | 10 knots | = | 11.5 mph |

So high knots represent lower MPH speeds over the same time span.

Performing the Conversion

To transition between knots and MPH, you multiply or divide based on the nautical mile difference:

MPH = Knots x 1.15 Knots = MPH / 1.15

Some example converted speeds:

|500 knots | = | 575 mph|
|80 mph | = | 70 knots|

Higher knots give lower MPH, while higher MPH equals lower knots.

Key Takeaways

To summarize knots/MPH conversions:

• Knots are based on nautical miles traveled per hour
• Nautical miles are 15% longer than standard miles
• Use the conversions: MPH = Knots x 1.15 and Knots = MPH / 1.15
• Adjustments account for nautical mile difference
• For mental math, mulitply knots by 1.15 to estimate MPH

So by applying the right conversion factor, air and sea speeds in knots can easily shift to equivalent ground speeds in MPH.

Type a value in the Knots field to convert the value to MPH:

Knots

MPH:

Knots to MPH Formula

MPH=knots*1.150779

knots to mph conversion exp:-

40 knots to miles per hour
MPH=40*1.150779= 46.03116 mph

30 knots to miles per hour
MPH=30*1.150779= 34.52337 mph

50 knots to miles per hour
MPH=50*1.150779= 57.53895 mph

75 knots to miles per hour
MPH=75*1.150779= 86.308425 mph

80 knots to miles per hour
MPH=80*1.150779= 92.06232 mph

Other Value

30 knots to mph
34.52337

20 knots to mph
23.01558

100 knots to mph
115.0779

40 knots to mph
46.03116

15 knots to mph
17.261685

120 knots to mph
138.09348

50 knots to mph
57.53895

10 knots to mph
11.50779

21 knots to mph
24.166359

660 knots to mph
759.51414

25 knots to mph
28.769475

23 knots to mph
26.467917

22 knots to mph
25.317138

60 knots to mph
69.04674

400 knots to mph
460.3116

150 knots to mph
172.61685

Knots to MPH Table Chart

knot	mph	knot	mph
1	1.15	51	58.69
2	2.3	52	59.84
3	3.45	53	60.99
4	4.6	54	62.14
5	5.75	55	63.29
6	6.9	56	64.44
7	8.06	57	65.59
8	9.21	58	66.75
9	10.36	59	67.9
10	11.51	60	69.05
11	12.66	61	70.2
12	13.81	62	71.35
13	14.96	63	72.5
14	16.11	64	73.65
15	17.26	65	74.8
16	18.41	66	75.95
17	19.56	67	77.1
18	20.71	68	78.25
19	21.86	69	79.4
20	23.02	70	80.55
21	24.17	71	81.71
22	25.32	72	82.86
23	26.47	73	84.01
24	27.62	74	85.16
25	28.77	75	86.31
26	29.92	76	87.46
27	31.07	77	88.61
28	32.22	78	89.76
29	33.37	79	90.91
30	34.52	80	92.06
31	35.67	81	93.21
32	36.82	82	94.36
33	37.98	83	95.51
34	39.13	84	96.67
35	40.28	85	97.82
36	41.43	86	98.97
37	42.58	87	100.12
38	43.73	88	101.27
39	44.88	89	102.42
40	46.03	90	103.57
41	47.18	91	104.72
42	48.33	92	105.87
43	49.48	93	107.02
44	50.63	94	108.17
45	51.79	95	109.32
46	52.94	96	110.47
47	54.09	97	111.63
48	55.24	98	112.78
49	56.39	99	113.93
50	57.54	100	115.08

Related Converters

1. MPH to KPH
2. MPH to Knots
3. MPH to Mach
4. KPH to MPH
5. KPH to Knots
6. KPH to Mach
7. Knots to MPH
8. Knots to KPH
9. Knots to Mach
10. Mach to MPH
11. Mach to KPH
12. Mach to Knots