Spike's Calculators

# Distance from Speed and Time - Kilometres

Calculate the distance travelled for a given speed measured in kilometres per hour for a set amount of time.

### Distance from Speed and Time - Kilometres

Speed in Kilometres/Hour km/hr
Travel Time hr min
Decimal Rounding #

#### Results:

 Distance Traveled in Kilometres km Distance Traveled in Miles mi

#### Calculator

1. enter the speed in kilometres per hour
2. the time of travel in hours and or minutes
3. number of digits after the decimal point for the results

#### Result

1. the distance traveled in kilometres
2. the distance traveled in miles

### Formula

`distance = speed * time`

### Example Calculation

```You are travelling at a speed of 126 kilometres per hour (speed and time) for 2 hours and 45 minutes (time).
Both speed/time and time have to be in the same units to make the multiplication.
Changing the 2 hours and 45 minutes into an hour format makes sense.

There are 60 minutes in one hour; to change one minute into hours, divide one by 60.
```
`1 ÷ 60 = 0.01666666666666666666666666666667.`
`Multiply this amount by 45;`
`0.01666666666666666666666666666667 * 45 = 0.75`
```2 hours and 45 minutes = 2.75 hours

```
`Multiply 126 kilometres per hour by2.75 hours to get the distance;`
`126 * 2.75 = 346.5`
```At a speed of 126 kilometres per hour for two hours and 45 minutes, you will travel a distance of 346.5 kilometres.

```

### Conversions

```one hour = 60 minutes
one minute = 0.01666666666666666666666666666667 hours
one kilometre (km) = 0.621371192237334 miles (mi)

```