PEN, PAPER & PIXEL
Mortal Peril Simulator • 5e & 2024 Rules

D&D 5e Death Saving Throw Odds & Simulator

Track successes and failures in real time, analyze exact statistical survival odds, simulate Natural 20 heroic comebacks, and test Paladin Aura buffs.

Base Survival Chance
59.5%
Standard 5e Rules
Death Probability
40.5%
3 failures before 3 successes
Heroic Nat 20 Odds
18.0%
Wakes up with 1 HP
Live Combat Death Save Tracker
SUCCESSES (3 = Stabilized)
FAILURES (3 = Dead)
Unconscious at 0 HP. Roll to start!
Paladin Aura of Protection, Ring of Protection, Bless

The Mathematics of 5e Death Saves

Death saves are rolled on your turn when you start with 0 hit points. You roll a d20 without ability modifiers against a target of 10:

Roll Result Effect Probability
Natural 20 Instant Heroic Recovery! Regain 1 hit point immediately and wake up. 5.0% per roll (~18% overall)
10 to 19 1 Success. Accumulate 3 successes to stabilize at 0 HP. 50.0% per roll
2 to 9 1 Failure. Accumulate 3 failures and character dies permanently. 40.0% per roll
Natural 1 2 Failures! A devastating setback pushing character to brink of death. 5.0% per roll

Related Tabletop Calculators

5e Hit Point Calculator Calculate level 1-20 HP and Aid spell buffs to avoid dropping to 0. Short & Long Rest Calculator Simulate healing Hit Dice recovery once you stabilize after combat. 5e Concentration DC Calculator Calculate concentration checks when taking damage in melee. Fall Damage Calculator Calculate massive impact damage that could trigger instant death.