Russian military losses to date

 The Hill:

The U.S. military estimates that Russia has lost nearly 1,000 tanks and “a not insignificant amount” of personnel in its now three-month long attack on Ukraine, a senior U.S. defense official said Thursday.

“We believe they’ve lost or rendered inoperable almost 1,000 of their tanks in this fight,” the official told reporters, but noted that “they still have a lot left available to them.”

The official also said the Kremlin has “suffered a not insignificant amount of attrition” among its troops.

Russian forces have also lost “well over 350 artillery pieces,” almost three dozen fighter bomber fixed wing aircraft and more than 50 helicopters.

Pentagon press secretary John Kirby later said that the Russians “continue to take casualties every single day in this war,” which began on Feb. 24.

“We know that they have lost not only soldiers, but they’ve lost a lot of equipment and weapons. They’re expending a significant number of their cruise missile and precision guided munitions inventory in this war. So we know that they are looking across the board at ways to try to resupply and replenish themselves,” Kirby told reporters.

The U.S. assessment comes as a Ukrainian defense official earlier on Thursday claimed nearly 30,000 Russian troops had been killed in the invasion.

The Pentagon has declined to publicly estimate the casualty figures, instead only noting that Russia still has 110 battalion tactical groups in Ukraine — more than 80 percent of its fighting units.
...

At this point, it looks like Putin is going to continue to push his troops into the meat grinder and also lose more equipment. 

See, also:

Russia is losing its most elite troops thanks to 'complacency' by commanders and Ukrainian fightback, UK says