Just bought some slighty oversized tyres and am worried the tyre is gonna hit the suspension on the top/inside of the tyre on the fronts

The new 'unfitted' tyres are 225/60R16, and the tyres on now are 205/60R16 and they are about 10mm below the steering arm(?) and thats at 30% tread

According to the miata tyre calculator the new tyres will have 12mm more radius so looks to go too close?

Has anyone fitted these size tyres before?

Yeah that would go real close IMO, depending on rim width and offset.
Thats a weird size too, 225/50 is what is generally fitted to 16s for these things.

just a follow up..... bought the tyres (225/60/R16) and they dont fit on the front, but they sure fill the guards on the back !!

I currently have 205/75's on 15x6 EF/EL steelies on the front of my EB, and they just clear the steering upright. They are around 27" O.D.

On the back my 235/75R15's definitely fill the rear guards, they are around 29" O.D. Although if i shortened the suspension arms or removed the petrol tank i could go a tad bigger.