can someone help me convert these tire sizes

Hi, I bought a double axle trailer last year, the tires are shot and its time to replace them.
2 of them are so dry rotted I cannot see the size, the other 2 have different sizes.

#1 - 7.00-10
#2 - 7.5-10

Can someone help me convert this to a standard tire size so I can order them ?
I understand its a 10 in rim, not sure about the rest, looked at a bunch of converters online but nothing has 10 in rims.

I uploaded pic of one of them.
https://ibb.co/wYcXj4n


Thank you,
Vic