D&D 5e DPR Calculator (2024 Edition)

This is a web-based Damage Per Round (DPR) calculator for Dungeons & Dragons 5e, updated for the 2024 ruleset. It helps players and dungeon masters simulate expected damage output over four rounds of combat, factoring in attack bonuses, dice rolls, modifiers, and new mechanics like Weapon Mastery.

📦 Getting Started

Live Demo here:

https://oefi.github.io/dnd5e-dpr-calc/

or

open index.html in your browser — no installation required.

Here is how it looks:

✨ Features

• 🎯 Target AC and Crit Range configuration
• 🎲 Drag-and-drop dice tray (d4–d12)
• ⚔️ Per-attack toggles: Advantage, Super Advantage, Bless, Graze, Great Weapon Fighting
• 📊 Live damage calculations and cumulative chart
• 🧠 Smart hit chance and crit math (including 3d20 logic)
• 🛠️ Duplicate and delete attacks easily
• 📦 Global toggles for all attacks (All Advantage, All Bless, etc.)
• 📚 Built-in manual with tooltips for every element

🛠️ Tech Stack

• HTML5 / CSS3
• Vanilla JavaScript
• Chart.js for visualizations

📖 License

MIT License — free to use, modify, and share.