"Mike" wrote in message
...
Can someone please tell me what the volume of water is, in gallons, of
a 50
metre length of garden hose.

Thinking of making a heat exchanger to heat up the water in a big box
with
50 metres of garden hose snaked out and under a Perspex cover

There has to be a calculation somewhere bit I don't know.

Thank you.

Mike

If it has an internal diameter of 13mm, it has a cross section of
0.000133 m^2, so the volume of the pipe is 6.65 litres (I think that's
about a gallon and a half).

Neil