calculate volume of radiator

[Ouch77]

If I know the physical dimensions of a bunch of steel panel radiators (cheap, of unknown origin) , is there a basic rule of thumb I can use to work out the approximate volume of the system (I'll take some rough measurements of pipe lengths and sizes).. ?
So far I've seen 6l/kW and 11l/kW from different sources, but I'd prefer something like [height]X[width]x[magic number] = Volume in litres.
It appears even modern manufacturers do not state this in their published literature... odd, I'd have thought it would be useful to know.

 

[mcprinter]

Do you mean water content of each rad?
Screwfix have this on the specification tab

i.e. 4.18L for this one

Flomasta Type 22 Double-Panel Double Convector Radiator 600mm x 700mm White 4082BTU - Screwfix

Order online at Screwfix.com. Traffic white paint finish (RAL 9016). FREE next day delivery available, free collection in 1 minute.

www.screwfix.com

 

[vulcancontinental]

Look in a radiator catalogue of a style similar to your own. Do you need it to be that accurate?

 

[Ouch77]

Do you mean water content of each rad?
Screwfix have this on the specification tab

i.e. 4.18L for this one

Flomasta Type 22 Double-Panel Double Convector Radiator 600mm x 700mm White 4082BTU - Screwfix

Order online at Screwfix.com. Traffic white paint finish (RAL 9016). FREE next day delivery available, free collection in 1 minute.

www.screwfix.com

oh well that's embarrasing - I'd checked a few radiators on the stelrad website and there wasn't any mention, so assumed (wrongly) that it would be the same for their distributors..

As you were, and many thanks..