"Firstly, Russian ordnance is generally less sophisticated and cheaper than US kit. Secondly, Russian military vehicles do not use petroleum, but diesel – a fuel that is cheaper and offers a better range.
He also estimated the cost of equipment losses in the first four days of fighting. Ten aircraft, at an average price tag of $30 million per airframe, would cost $300 million. One hundred armored fighting vehicles – troop carriers, infantry fighting vehicles, mobile artillery and tanks – which cost an average of $5 million each, would hit the Russian taxpayer with a $500 million bill.
The source then estimated the daily cost of keeping a Russian soldier – a cheaper fighting man than his US counterpart – in the field to be approximately $1,000. He multiplied that by the upper estimate of Russia’s force level in Ukraine – 200,000 troops.
For one day, that would be $200 million. Over four days, troop maintenance costs would total $800 million.
So the total cost for four days of combat operations in Ukraine would be in the region of $1.6 billion – the source added it could rise to $2 billion. But even that upper range would put daily costs to the Kremlin of its invasion at about $500 million."
https://asiatimes.com/2022/03/russias-low-cost-war-can-endur...