About This Warhammer 40K Damage Calculator

This advanced damage calculator is specifically designed for Warhammer 40,000 10th Edition rules. It accurately computes expected damage output by simulating the complete attack sequence: Hit rolls, Wound rolls, Save rolls, and special weapon abilities.

How to Use the Damage Calculator

1. Enter Attack Profile: Input your weapon's stats including attacks, skill, strength, AP, and damage.
2. Set Target Stats: Configure the target's toughness, saves, wounds, and defensive abilities.
3. Apply Modifiers: Use advanced options for special rules and battlefield conditions.
4. Calculate: Hit the calculate button to see detailed damage analysis and probabilities.

10th Edition Mechanics Explained

• Hit Rolls: Roll equal to or higher than the weapon's WS/BS to score hits.
• Critical Hits: Unmodified 6s always hit and trigger special abilities like Lethal Hits.
• Wound Rolls: Compare Strength vs Toughness using the wound table.
• Critical Wounds: Unmodified 6s always wound and can trigger Devastating Wounds.
• Save Rolls: Modified by AP, choose between armor save and invulnerable save.
• Feel No Pain: Roll after taking damage to ignore wounds.

Competitive Play Tips

• Use this calculator for efficient target prioritization during games.
• Compare weapon effectiveness against different target profiles.
• Factor in special rules like Lethal Hits against high-toughness targets.
• Consider invulnerable saves vs AP when choosing targets.
• Account for Cover and Stealth when positioning units.
• Remember that some abilities only work on specific target types.

Advanced Strategy Guide

Understanding damage efficiency is crucial for competitive Warhammer 40K play. This calculator helps you make informed decisions about weapon selection, target prioritization, and tactical positioning. The statistical analysis shows not just average damage, but also the probability of achieving specific damage thresholds - essential for planning alpha strikes or ensuring key targets are eliminated.

For tournament play, use this tool during list building to optimize weapon loadouts against the current meta. Compare different weapon options against common target profiles to find the most efficient combinations. Remember that consistency often matters more than raw damage output - a weapon that reliably deals moderate damage may be more valuable than one with high variance.