Other Calculators

Speed Converter - Convert MPH to KM/H and Other Units

Speed Converter - Convert MPH to KM/H and Other Units

Speed Converter - Convert MPH to KM/H and Other Units | CalcSphere

Speed Converter

Convert between miles per hour (mph), kilometers per hour (km/h), knots, meters per second (m/s), and feet per second (ft/s)

Rated 4.8/5 based on 125 reviews

Enter Speed Value

From Unit

To Unit

Converted Speed

37.28

mph

Human Walking

~3 mph

About 12.4x faster

Average Car

~40 mph

About 0.93x the speed

Commercial Jet

~575 mph

About 0.06x the speed

Miles per hour (mph)

Commonly used in the US and UK for road speeds

Kilometers per hour (km/h)

Standard speed unit in most countries worldwide

Knots (kn)

Used in aviation and maritime contexts

Frequently Asked Questions

How to convert mph to km/h?

To convert miles per hour (mph) to kilometers per hour (km/h), multiply the mph value by 1.60934. For example, 60 mph is equal to 60 × 1.60934 = 96.5604 km/h.

What is the fastest land animal?

The cheetah is the fastest land animal, capable of reaching speeds up to 70-75 mph (112-120 km/h) in short bursts.

How many knots are in one mph?

One mile per hour (mph) is approximately 0.868976 knots. Conversely, one knot is approximately 1.15078 mph.

What is the speed of sound?

The speed of sound varies based on temperature and altitude, but at sea level at 20°C (68°F), it's approximately 343 meters per second (1,125 ft/s) or about 761 mph (1,225 km/h).

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