help with 28 x 10.5 wheels

[fox182]

hey guys i have a 92 notch converted to 5 lug, i have 15x10 weld draglites with 28x10.5 mickey thompson drags, i wanna take them off and through some nitto 555rs on there for the street i had em on my old stang and loved them, only thing is im not sure what the equivalent size to 28x10.5 is cause theyre all in metric? i think anyone know what size wheels to go with?

 

[Tanus]

275/60/15

 

[fox182]

Thanks man