Imperial to Metric for vacuum hoses

I want to replace all my vacuum hoses on my car, trouble is most of the places I've called so far only carry imperial measurements.

Should I have any issues using these imperial versions for my car?

5/32 = 3.968 mm
1/4 = 6.350 mm
5/16 = 7.937 mm
15/32 = 11.908 mm


These seem to be the closest measurements I can find using a table, the difficulty is finding the hoses. I'd prefer to use the metric versions but if I can't find them then I am stuck with imperial.

I've called NAPA and they have 1/4 and 5/16 hose in stock.
Part source has none of these.
I'll check out bumper to bumper tomorrow.
Can anyone recommend any stores in Edmonton for this stuff?


Thanks

Honestly? If they fit slightly loose, get yourself some small discrete zip-ties and use those to tighten those hoses down. I have no idea where to find metric sized hoses, so this would be my best suggestion. Hope that helps.

The smallest diameter Toyota has a part number for and you can just buy it from a dealer. I don't remember how much, but I think it was no more than a few bucks a foot. I am also still looking for the larger sizes, like the 10 and 12mm.