The Kiel Institute has gathered data about the support to Ukraine between Jan 24th - Aug 3rd. The United States has committed about 44.5 Billion Euros (about 0.2% of its GDP) to supporting Ukraine financially and militarily. Out the supporting countries, Estonia is leading the pack, having committed 0.8% of its GDP to backing Ukraine.

https://www.ifw-kiel.de/topics/war-a...pport-tracker/