Convert 40 knots to miles per hour

Explanation

Let's convert 40 knots to miles per hour, or kn to mph as one could put it.

First, we need to calculate the conversion factor using the units respective values. We find 1.1508.

Then we multiply this conversion factor by the number of knots. In this case 40.

Therefore, 40 knots is approximately equal to 46.0312 miles per hour.

Formula

1 kn≈1.1508 mph

40 kn≈40 × 1.1508 mph

40 kn≈46.0312 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.

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