Damage Calculation

Every round you lose in TFT costs you health. The exact amount is not random -- it follows a deterministic formula based on what stage you are in and how many enemy units survived. Understanding this formula lets you predict how many more losses you can absorb, which directly informs your rolling, leveling, and risk-taking decisions.

The Damage Formula

Total Damage = Base Stage Damage + Sum of Surviving Enemy Unit Damage

Damage has two components that are always added together. You take damage from every loss, no matter how close the fight was.

Base Stage Damage

Each stage of the game carries a fixed base damage penalty applied to the loser of every combat round:

Stage Base Damage
1 0
2 0
3 1
4 2
5 5
6 8
7+ 15

Note: These values are approximate and may be adjusted between sets and patches. Always verify against current patch notes.

Stages 1 and 2 have zero base damage, making early losses nearly free. The jump from Stage 4 (2 base) to Stage 5 (5 base) is where the game shifts from forgiving to punishing. Stage 6 and beyond are brutal -- the base damage alone accounts for a significant portion of total damage taken.

Surviving Unit Damage

After combat resolves, every enemy champion still alive on the board deals damage based on its star level:

Star Level Damage per Unit
1-star 1
2-star 2
3-star 3

This damage is summed across all surviving units. A board with 8 surviving champions deals significantly more than one with 3 survivors. The star level of those units matters -- a board of two-star units deals double the unit damage of an equivalent board of one-stars.

Worked Examples

Example 1: Early Game Loss (Stage 3)

You lose a fight in Stage 3. The opponent has 4 surviving units: three 1-stars and one 2-star.

  • Base damage: 1
  • Unit damage: (3 x 1) + (1 x 2) = 5
  • Total: 6 damage

At 100 HP, this barely registers. You can absorb roughly 15 losses like this before being in danger.

Example 2: Mid-Game Loss (Stage 4)

You lose in Stage 4 against a stronger board. 5 units survive: two 2-stars and three 1-stars.

  • Base damage: 2
  • Unit damage: (2 x 2) + (3 x 1) = 7
  • Total: 9 damage

Now each loss is meaningful. Three consecutive losses like this costs you 27 HP.

Example 3: Late-Game Loss (Stage 5)

You lose in Stage 5. The opponent's board is fully upgraded with 6 surviving units: four 2-stars and two 1-stars.

  • Base damage: 5
  • Unit damage: (4 x 2) + (2 x 1) = 10
  • Total: 15 damage

A single loss takes 15% of your starting HP. Two losses in a row from 40 HP eliminates you.

Example 4: Devastating Late Loss (Stage 6)

Stage 6, you lose badly. 7 units survive: three 2-stars, two 3-stars, and two 1-stars.

  • Base damage: 8
  • Unit damage: (3 x 2) + (2 x 3) + (2 x 1) = 14
  • Total: 22 damage

This is enough to eliminate a player from nearly a quarter of their starting health in a single round.

Damage Ranges by Stage

Based on typical board states, here are the expected damage ranges you can anticipate when losing:

Stage Typical Damage Range Notes
1-2 1-4 Negligible, no base damage
3 3-8 Small base, small boards
4 5-12 Base damage kicks in, boards growing
5 10-18 Dangerous, upgraded boards
6 15-25 Potentially lethal in 2 losses
7+ 20-30+ Single loss can eliminate

Why This Matters Strategically

HP as a Spendable Resource

The low early-game damage is not accidental -- it is a design feature that enables economy-focused play. Losing in Stages 1-3 costs an average of 3-6 HP per round. Over 6 rounds of losses, that is roughly 18-36 HP, leaving you at 64-82 HP entering Stage 4. This is a completely acceptable price for building a strong economy.

The Stage 5 Cliff

The jump from Stage 4 to Stage 5 is the most important damage threshold in the game. Base damage more than doubles (2 to 5), and opponents typically have larger, more upgraded boards. A player who was comfortably losing 8 HP per round in Stage 4 might suddenly lose 15+ per round in Stage 5. This is why stabilizing your board before Stage 5 (typically at the 4-1 or 4-5 roll-down) is critical.

Counting Your Remaining Losses

At any point in the game, you should know approximately how many more losses you can survive:

  • 60 HP in Stage 4: Roughly 6-7 more losses. You have time.
  • 40 HP in Stage 5: Roughly 2-3 more losses. You need to stabilize immediately.
  • 25 HP in Stage 6: Possibly 1 loss away from elimination. Every decision is life or death.

This calculation should drive your aggression level. If you can survive 5 more losses, you can afford to save gold and level. If you can only survive 2, you need to roll immediately regardless of your economy.

Key Takeaways

  • Total damage = base stage damage + damage from each surviving enemy unit (1/2/3 per star level).
  • Stages 1-2 have 0 base damage, making early losses cheap. This is what makes loss-streaking viable.
  • Stage 5 is the critical threshold where damage roughly doubles compared to Stage 4.
  • Stage 6+ losses regularly deal 15-25 damage. Two consecutive losses from 40 HP is elimination.
  • Always calculate how many losses you can survive. This number determines whether you save, roll, or level.