Convert one mile per hour to knots

Explanation

To convert one mile per hour to knots all we need is to know the conversion factor and we are done. Luckily, we can compute that factor using the units' definitions below.

We find that one mile per hour is approximately equal to 0.869 knots.

Formula

1 mph ≈ 0.869 kn

miles per hourmph

dimension	speed
symbol	mph, mi/h

The mile per hour (mph, mi/h) is a unit of speed.

Definition of the mile per hour

One mile per hour is equal to the speed of an object traveling one mile in a time of one hour.

Value in terms of the SI

One mile per hour is equivalent to ¹³⁹⁷⁄₃₁₂₅ meters per second.

Equivalences

One mile per hour is also equivalent to:

Some Facts

The fastest fish, the sailfish, can swim to up to 65 mph (105 kmh).

Other speeds

	second	minute	hour
inch	ips	ipmin	iph
foot	fps	fpmin	fph
yard	yps	ypmin	yph
mile	mps	mpmin	mph

knotskn

dimension	speed
symbol	kn, kt
synonyms	kts

The knot (kn, kt) is a unit of speed.

The unit is used in navigation and meteorology.

Definition of the knot

One knot is defined as one nautical mile per hour.

Value in terms of the SI

One knot is equal to ⁴⁶³⁄₉₀₀ meters per second.

Equivalences

One knot is equivalent to:

History

The knot finds its origin in a tool made up of a knotted line attached to a log that was used for measuring the speed of a ship. The log was tossed in the water off the stern and the sailors counted to number knots that passed through their hand in a certain amount of time.