| Allied Powers | Cost in US Dollars in 1914-18 |
| United States | 22,625,253,000 |
| Great Britain | 35,334,012,000 |
| France | 24,265,583,000 |
| Russia | 22,293,950,000 |
| Italy | 12,413,998,000 |
| Belgium | 1,154,468,000 |
| Romania | 1,600,000,000 |
| Japan | 40,000,000 |
| Serbia | 399,400,000 |
| Greece | 270,000,000 |
| Canada | 1,665,576,000 |
| Australia | 1,423,208,000 |
| New Zealand | 378,750,000 |
| India | 601,279,000 |
| South Africa | 300,000,000 |
| British Colonies | 125,000,000 |
| Others | 500,000,000 |
| Total of all Costs | 125,690,477,000 |
Neera Sahni, Research Services Leader,City of Parramatta, Parramatta Heritage Centre, 2016