🐉 Feat Calculator
Elven Accuracy Triple Advantage Calculator
Calculate hit and crit chances when rolling 3d20 and keeping the highest result with the Elven Accuracy half-feat.
⚙️ Input Parameters
Real-Time Simulation 10
1 20
Mathematical Formula
P(Success) = 1 - (1 - p)^3
Primary Probability Result
--%
Success Probability
Fractional Odds
1 in 2.0
Failure Chance
50.0%
Client-side mathematical calculation ● 100% Deterministic
Tactical Analysis & Mathematical Context
In tabletop gaming, understanding the mathematical distribution behind your rolls allows you to make informed risk-reward decisions. Whether balancing spell slot usage in D&D 5e, evaluating an attack profile in Warhammer 40k, or weighing trade routes in Catan, knowing the exact probability mass function (PMF) turns guesswork into strategy.
Frequently Asked Questions
How good is Elven Accuracy in D&D 5e?
Elven Accuracy transforms a 55% normal hit chance into an overwhelming 90.9% hit rate, while nearly tripling your crit chance to 14.26% (or 27.1% for Champion Fighters).
More D&D 5e & TTRPGs Calculators
Core Mechanic #1
D&D 5e Advantage & Disadvantage Calculator
Character Creation
4d6 Drop Lowest Ability Score Calculator
Combat Math
D&D Critical Hit Probability Calculator
Legendary Debate
2d6 vs 1d12 Probability Calculator (Greatsword vs Greataxe)
Combat Engine
D&D 5e Attack Hit Probability Calculator
Magic System
D&D 5e Spell Save DC & Saving Throw Calculator