Knots to miles per hour

miles per hour = knots × 1.150779

How to convert knots to miles per hour

One knot is 1.150779 miles per hour, so multiply the number of knots by 1.150779. For example, 20 knots is 20 × 1.150779 = 23.015589 miles per hour. To go back, divide by the same number, or multiply by 0.86897624.

Quick estimate

Multiplying by about 1.2 gets within 4.3% of the exact answer, which is enough to check that a result makes sense.

Where it comes up

Speed conversions come up when driving abroad, in running and cycling paces, weather and wind reports, and sailing and flying.

knots	miles per hour
1 kn	1.150779 mph
2 kn	2.301559 mph
3 kn	3.452338 mph
4 kn	4.603118 mph
5 kn	5.753897 mph
6 kn	6.904677 mph
7 kn	8.055456 mph
8 kn	9.206236 mph
9 kn	10.357015 mph
10 kn	11.507794 mph
11 kn	12.658574 mph
12 kn	13.809353 mph
13 kn	14.960133 mph
14 kn	16.110912 mph
15 kn	17.261692 mph
16 kn	18.412471 mph
17 kn	19.563251 mph
18 kn	20.71403 mph
19 kn	21.86481 mph
20 kn	23.015589 mph
25 kn	28.769486 mph
30 kn	34.523383 mph
40 kn	46.031178 mph
50 kn	57.538972 mph
60 kn	69.046767 mph
70 kn	80.554561 mph
75 kn	86.308459 mph
80 kn	92.062356 mph
90 kn	103.57015 mph
100 kn	115.077945 mph
120 kn	138.093534 mph
150 kn	172.616917 mph
200 kn	230.15589 mph
250 kn	287.694862 mph
300 kn	345.233834 mph
400 kn	460.311779 mph
500 kn	575.389724 mph
750 kn	863.084586 mph
1,000 kn	1,150.78 mph
1,500 kn	1,726.17 mph
2,000 kn	2,301.56 mph
5,000 kn	5,753.9 mph
10,000 kn	11,507.79 mph

Questions

How many miles per hour are in a knot?

1.150779 miles per hour.

How do I convert knots to miles per hour in a spreadsheet?

Put the value in A1 and type =A1*1.150779, then fill the formula down the column.

Are the values in the table exact?

They are calculated from the exact definitions of the units and rounded only for display. Open any row for the full working.