# Speed Converter

Enter the value of the speed you would like to convert and select its unit. Then select the unit you want to convert to.

## How to Convert MPH to KPH

Multiply the speed in mph by 1.609344 km per mile. For example, 55 mph is 88.51392 kph. For most practical intents, multiplying by 1.6 is accurate enough.

## How to Convert KPH to MPH

Convert from kph to mph by dividing the speed in kph by 1.609344. For example, if the the speed limit is 90 kph the equivalent is 55.92 mph. In most cases, dividing by 1.6 is accurate enough.

## Common Speed Conversions

### Convert Miles per Hour (mph) to…

• 1 mile per hour (mph) = 1.609* kilometres per hour (kph)
• 1 mile per hour (mph) = 0.447* metres per second

### Convert Kilometres per Hour (kph) to…

• 1 kilometres per hour (kph) = 0.621* mile per hour (mph)
• 1 kilometres per hour (kph) = 0.278* metres per second

### Convert Metres per Second to…

• 1 metres per second = 3.6 kilometres per hour (kph)
• 1 metres per second = 2.237* miles per hour (mph)

* Calculation to 3 decimal places

Hertfordshire Website Design