Use this Hospital upgrade calculator to plan resource costs, build time, and power gains for levels 1 through 35 in Last Z: Survival Shooter.
Select your current level and target level in the tool below. Totals include every upgrade step in your range, with per-level materials and building requirements where applicable.
How to use this calculator
Set Current to your building level today and Target to the level you want next. Tap Max to plan a full push to level 35. The summary shows total materials, combined build time, and power gained across all steps.
What is included
- Resource totals for each upgrade step in your selected range
- Combined construction time for the full path
- Building requirements needed at each level



