[GF_Mastiff]

Gauge and speedbar values are correct 1 ft = 30,48 cm
so that 70m = 7000cm , 7000cm / 30,48cm ~ 229ft

Whew ! Do you have any type of "nursery rhyme" type calculation that's easier to use ? Something like "multiply this by that" to get "whatever" ?

I'd go nuts trying to work that out in me head hock:

OK here it comes:
In the first picture the altitude indicated in the speedbar was 70 meters and the altitude on the gauge was 229 feet and the question was if this is right.
Now 1 feet are 30,48 centimeters.
If you want to know how many feet are 70 meters, you have to transform the meters in cm by multiplying them by 100. (because 1 meter are 100 cm)
This means 70 meters = 7000 centimeters
if you divide this 7000 cm by 30,48 cm the result is nearly 299,65 and this is the number of feet that match into 70 meters, so 70 meters = 229 feet

so gauges and speedbar show the correct value, but in different measurement units

Ok ?

and thank you for the algebra math lesson guys.