What is the number for distance in? kilometers feet?

speed= distance/time
speed=4281/4.5 km/h
speed=951.34 kmph
hence, the plane fly at 951.34 kmph

It has probably been messed with at some stage if you are not the original owner of the vehicle because these items rarely fail.
What is the year and model of vehicle you have?

According to CoolCosmos,
The average distance of Neptune from the Sun is 2,795,084,800 miles or 4,498,252,900 kilometers. Because its orbit is elliptical, its distance from the Sun changes depending on where it is in its orbit. The closest Neptune gets to the Sun is 2,771,087,000 miles or 4,459,630,000 kilometers. The farthest it gets from the Sun is 2,819,080,000 miles or 4,536,870,000 kilometers.

const feet_per_mile = 5280
distance = 8.5
print "the distance is "+distance "+miles or+" distance*feet_per_mile+" feet."

Metric system is an easier to use and understand measuring system for all like distances and weights and volumes. 1 milimeter x 10 = 1 Centimeter 1 centimeter x 10 = 1 decimeter 1 decimeter = 1 meter 1000 meters = 1 kilometer (and 1.6 kilometer = 1 mile of the older system)
compare it to the older system 1 inch x 12 = 1 foot 3 feet = 1 yard 220 yards = 1 furlong 8 furlong = 1 mile (some sense of humour where you would go mad multiplying these numbers).
similarly in volumes and weights the metric is in terms of 10s while the older system was as maddening as the distances. But Americans still prefer the mile and pounds system. They are entitled to their humour or humor.

On the back of the console, there is a place to switch from kilometers to miles. It's just a black little switch, labeled with miles or kilom.

To change this setting go to the menu on the Forerunner by pressing the Mode button then follow the steps below:

1. Select Settings
2. Select General
3. Select Units
4. Select Distance and/or Elevation and change this to Metric if you wish to see the measurement units in kilometres and metres, select Statute if you wish to see units in miles and feet

thats not possible as grams is a measure of weight and kilometers are distance. tell me again what you need and i'll get you the answer

/* REXX is better than JAVA -- see: http://www.REXXLA.org */

say 'Welcome to the class named DISTANCE'
pull kilometers junk
if kilometers = ' ' then exit
conversion = 0.62137
miles = kilometers * conversion
say kilometers 'Kilometers is' miles 'Miles.'
exit