I think so, but you should probably first start with retailers that have a good return policy / free return shipping. I'm usually an 8.5W for women's closed toe shoes, but it varies by brands (sometimes I have to go up or down a half-size).

For New Balance, I'm a Girls'/Kids' 6.5M. I'm pretty sure I'm a 6.5M in Nike Kids too; accidentally bought a 6 last year and it's just a smidge too short. (Then I forgot to ship them back in time for return. Augh.) New Balance actually also offers wide and xtra wide for their kids' shoes too, which is nice! Ex: https://www.amazon.com/New-Balance-Running-Sunrise-Little/dp/B07DVJVX96/

One thing to be careful about while shopping is making sure you're getting the Big Kids size, not the Little Kids - there overlap in the numbering schemes, which makes the whole thing a bit more complex.

EDIT TO ADD: I've had success with buying kids' sizes in Adidas street-style tennis shoes. I do urban travel by and large, and I find them to be a great balance of style and comfort. For winter, I ended up getting a pair of waterproof(-ish) Converse on deep sale but had been eyeing a pair of hi-top waterproof Vans until then. Worked great for Europe over NYE.