I understand the ev tax credit is non refundable but when do they use it? Is it after child tax credits or before?

I'm trying to figure out if my wife and I will get the full $7500 tax credit for the ev we purchased in March of 2023. We own a home and kids. We also donate to our church. From reading online, I see that the ev tax credit is not refundable but I'm confused. Will it be applied before other our other credits? Or, better yet is there a calculator I can use to see how much we will actually qualify for?