This page hosts data on real military expenditure using military purchasing power parity (PPP) exchange rates (also called defence sector PPP exchange rates).
The figure below shows real military spending adjusting for differences in defense sector costs. These are preliminary estimates for 2024.
The bars reflect the size of defense spending when measured conventionally, using market exchange rates, and the size when local defense sector costs are factored in. the difference reflects the buying power of the defense budget in each country.
See the Analysis page for more recent data on specific countries and discussions such as Europe’ real military spending compared to Russia, or China’s military rise. Further discussion about China’s defense spending are discussed here in Foreign Policy and in The Economist. Please see the Resources page for more detailed explanation.
The full data for 2024 are given in the following table.
The Original data and description of methods is in Robertson (2022) The Real Military Balance Review of Income and Wealth. Please cite as Robertson, Peter .E., (2022). “The real military balance: International comparisons of defense spending.” Review of Income and Wealth, 68(3), pp.797-818. https://doi.org/10.1111/roiw.12536
You can download the 2024 data here.
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militaryppp.com 
would be interesting to just look at the procurement budgets. I doubt China and Russia pay their troops anywhere near as well as United States nor offer them benefits for life.
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The military PPP numbers adjust for differences in personnel costs, so effectively already take account of your concerns. But you may also be interested in this discussion of China’s defence budget that breaks down the procurement and personnel components.
https://cepr.org/voxeu/columns/chinas-military-rise-comparative-military-spending-china-and-us
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