Online Calculators FreeReference Manual

Knots to Miles/hour Converter

Convert knots to miles/hour instantly. Exact factor: 1 kn = 1.151 mph.

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Convert knots to miles/hour

The exact conversion factor is 1 kn = 1.151 mph. Type any value and the result updates instantly; the math is shown beneath the board.

Worked by hand

Multiply the knots value by 1.151 to get miles/hour.

Worked example

  1. Take 1 kn
  2. multiply by 1.151
  3. the result is 1.151 mph

How to use it

  1. Enter your knots
  2. Read the miles/hour result
  3. Check the factor line to verify by hand

Frequently asked questions

How many miles/hour are in one knots?

Exactly 1.151 mph, by the SI/NIST definition.

How do I convert miles/hour back to knots?

Divide by 1.151 — or use the full converter where both directions are one click.

Is this rounding or exact?

The factor is exact; only the displayed decimals are rounded.