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MPH to Knots Converter

A quick two-way mph ⇄ kn converter: type in either box, choose how many decimals you want and copy the answer with one click.

Miles per hourFrom

mph

KnotsTo

Decimal places

Step-by-step calculation

How to use the MPH to Knots Converter

Type a value in the Miles per hour box. The knots result appears instantly.
Going the other way? Type in the Knots box, or press the ⇄ swap button.
Set the precision with the decimal places menu.
Check the working in the step-by-step box, then press Copy result or click any row in the tables below.

Miles per hour to knots formula

kn = mph ÷ 1.150779448

Take the value in miles per hour.
Divide it by 1.150779448 (the number of miles per hour in one knot).

Example: 60 mph ÷ 1.150779448 = 52.1386 kn.

Reverse formula (knots to miles per hour): mph = kn × 1.150779448. Example: 86.8976 kn × 1.150779448 = 100 mph.

Quick mental estimate: divide by about 1.2. For exact answers use the converter above.

mph to kn conversion table (1–100)

Click any row to load it into the converter.

Miles per hour to knots

Miles per hour	Knots
1 mph	0.869 kn
2 mph	1.738 kn
3 mph	2.607 kn
4 mph	3.476 kn
5 mph	4.345 kn
6 mph	5.214 kn
7 mph	6.083 kn
8 mph	6.952 kn
9 mph	7.821 kn
10 mph	8.69 kn
11 mph	9.559 kn
12 mph	10.428 kn
13 mph	11.297 kn
14 mph	12.166 kn
15 mph	13.035 kn
16 mph	13.904 kn
17 mph	14.773 kn
18 mph	15.642 kn
19 mph	16.511 kn
20 mph	17.38 kn
21 mph	18.249 kn
22 mph	19.117 kn
23 mph	19.986 kn
24 mph	20.855 kn
25 mph	21.724 kn
26 mph	22.593 kn
27 mph	23.462 kn
28 mph	24.331 kn
29 mph	25.2 kn
30 mph	26.069 kn
31 mph	26.938 kn
32 mph	27.807 kn
33 mph	28.676 kn
34 mph	29.545 kn
35 mph	30.414 kn
36 mph	31.283 kn
37 mph	32.152 kn
38 mph	33.021 kn
39 mph	33.89 kn
40 mph	34.759 kn
41 mph	35.628 kn
42 mph	36.497 kn
43 mph	37.366 kn
44 mph	38.235 kn
45 mph	39.104 kn
46 mph	39.973 kn
47 mph	40.842 kn
48 mph	41.711 kn
49 mph	42.58 kn
50 mph	43.449 kn
51 mph	44.318 kn
52 mph	45.187 kn
53 mph	46.056 kn
54 mph	46.925 kn
55 mph	47.794 kn
56 mph	48.663 kn
57 mph	49.532 kn
58 mph	50.401 kn
59 mph	51.27 kn
60 mph	52.139 kn
61 mph	53.008 kn
62 mph	53.877 kn
63 mph	54.746 kn
64 mph	55.614 kn
65 mph	56.483 kn
66 mph	57.352 kn
67 mph	58.221 kn
68 mph	59.09 kn
69 mph	59.959 kn
70 mph	60.828 kn
71 mph	61.697 kn
72 mph	62.566 kn
73 mph	63.435 kn
74 mph	64.304 kn
75 mph	65.173 kn
76 mph	66.042 kn
77 mph	66.911 kn
78 mph	67.78 kn
79 mph	68.649 kn
80 mph	69.518 kn
81 mph	70.387 kn
82 mph	71.256 kn
83 mph	72.125 kn
84 mph	72.994 kn
85 mph	73.863 kn
86 mph	74.732 kn
87 mph	75.601 kn
88 mph	76.47 kn
89 mph	77.339 kn
90 mph	78.208 kn
91 mph	79.077 kn
92 mph	79.946 kn
93 mph	80.815 kn
94 mph	81.684 kn
95 mph	82.553 kn
96 mph	83.422 kn
97 mph	84.291 kn
98 mph	85.16 kn
99 mph	86.029 kn
100 mph	86.898 kn

Knots to miles per hour

Knots	Miles per hour
1 kn	1.151 mph
2 kn	2.302 mph
3 kn	3.452 mph
4 kn	4.603 mph
5 kn	5.754 mph
6 kn	6.905 mph
7 kn	8.055 mph
8 kn	9.206 mph
9 kn	10.357 mph
10 kn	11.508 mph
11 kn	12.659 mph
12 kn	13.809 mph
13 kn	14.96 mph
14 kn	16.111 mph
15 kn	17.262 mph
16 kn	18.412 mph
17 kn	19.563 mph
18 kn	20.714 mph
19 kn	21.865 mph
20 kn	23.016 mph
21 kn	24.166 mph
22 kn	25.317 mph
23 kn	26.468 mph
24 kn	27.619 mph
25 kn	28.769 mph
26 kn	29.92 mph
27 kn	31.071 mph
28 kn	32.222 mph
29 kn	33.373 mph
30 kn	34.523 mph
31 kn	35.674 mph
32 kn	36.825 mph
33 kn	37.976 mph
34 kn	39.127 mph
35 kn	40.277 mph
36 kn	41.428 mph
37 kn	42.579 mph
38 kn	43.73 mph
39 kn	44.88 mph
40 kn	46.031 mph
41 kn	47.182 mph
42 kn	48.333 mph
43 kn	49.484 mph
44 kn	50.634 mph
45 kn	51.785 mph
46 kn	52.936 mph
47 kn	54.087 mph
48 kn	55.237 mph
49 kn	56.388 mph
50 kn	57.539 mph
51 kn	58.69 mph
52 kn	59.841 mph
53 kn	60.991 mph
54 kn	62.142 mph
55 kn	63.293 mph
56 kn	64.444 mph
57 kn	65.594 mph
58 kn	66.745 mph
59 kn	67.896 mph
60 kn	69.047 mph
61 kn	70.198 mph
62 kn	71.348 mph
63 kn	72.499 mph
64 kn	73.65 mph
65 kn	74.801 mph
66 kn	75.951 mph
67 kn	77.102 mph
68 kn	78.253 mph
69 kn	79.404 mph
70 kn	80.555 mph
71 kn	81.705 mph
72 kn	82.856 mph
73 kn	84.007 mph
74 kn	85.158 mph
75 kn	86.308 mph
76 kn	87.459 mph
77 kn	88.61 mph
78 kn	89.761 mph
79 kn	90.912 mph
80 kn	92.062 mph
81 kn	93.213 mph
82 kn	94.364 mph
83 kn	95.515 mph
84 kn	96.665 mph
85 kn	97.816 mph
86 kn	98.967 mph
87 kn	100.118 mph
88 kn	101.269 mph
89 kn	102.419 mph
90 kn	103.57 mph
91 kn	104.721 mph
92 kn	105.872 mph
93 kn	107.022 mph
94 kn	108.173 mph
95 kn	109.324 mph
96 kn	110.475 mph
97 kn	111.626 mph
98 kn	112.776 mph
99 kn	113.927 mph
100 kn	115.078 mph

Common values

Miles per hour	Knots	Example
1 mph	0.87 kn
10 mph	8.69 kn
100 mph	86.9 kn

About miles per hour and knots

Miles per hour (mph). Miles per hour is the speed unit used on roads in the US and UK.

Knots (kn). A knot is one nautical mile (exactly 1,852 m) per hour. It is used at sea and in aviation.

Frequently asked questions

1 mile per hour equals how many knots?

One mile per hour equals 0.868976 knots. Looking at it the other way, one knot is 1.15078 miles per hour.

How do you convert miles per hour to knots?

Divide the number of miles per hour by 1.150779448. For example, 60 mph ÷ 1.150779448 = 52.1386 kn.

What is 100 miles per hour in knots?

100 mph is 86.8976 kn.

How do I convert knots back to miles per hour?

Multiply by 1.150779448, or press the ⇄ swap button above. For example, 86.8976 kn × 1.150779448 = 100 mph.

What is a knot?

A knot is one nautical mile per hour. A nautical mile is exactly 1,852 meters (about one minute of latitude), so 1 knot = 1.852 km/h ≈ 1.151 mph.

Is this converter free and private?

Yes. It is free with no sign-up, and every calculation runs in your browser, so nothing you type is sent to a server.

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