In Dota, 1 Strength generally gives 20 HP, so 7 Strength gives about 140 HP. That’s the standard conversion used for Strength’s health bonus.

Quick math

  • 1 STR = 20 HP
  • 7 STR = 7 × 20 = 140 HP

Small caveat

Some patches and bugs have briefly changed or misreported Strength-to-HP behavior, but the usual in-game rule is 20 HP per Strength.