Convert 7 kn to mph

How to convert knots to miles per hour

1. Formula: miles per hour = knots × 1.150779
2. Put in the value: 7 knots.
3. Result: 8.055456 miles per hour.

Knots to miles per hour table

Converting the other way: miles per hour to knots

knots = miles per hour × 0.86897624. So 8.055456 miles per hour is back to 7 knots; one mile per hour is 0.86897624 knots. See the miles per hour to knots table.

Quick estimate in your head

For a rough answer, multiply by about 1.2: 7 × 1.2 ≈ 8.4 mph, against the exact 8.055456 mph (4.3% out). Good enough to check that a calculated result is sensible.

Common mistakes

The usual slip is using the factor the wrong way round. A knot is bigger than a mile per hour, so the number of miles per hour must come out larger than the number of knots. If your answer goes the other way, divide instead of multiplying.

About the units

Knot (kn) and mile per hour (mph) are both units of speed. One knot equals 1.150779 miles per hour, and one mile per hour equals 0.86897624 knots. Results on this page are rounded for display; the conversion itself uses the exact definitions.

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

7 knots in other units

The most readable unit for this amount is meters per second (3.601111).

• 3.601111 mps
• 12.964 kph
• 8.055456 mph
• 11.814669 fps

How this answer was calculated

The result is worked out from the numbers in this page's address when the page is opened, using exact arithmetic wherever possible and rounding only for display. Nothing is copied from a printed table. If you think an answer is wrong, please tell us through the contact page and we will check it.

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