D&D Initiative Bonus Calculator
Calculate your D&D 5e initiative bonus.
Enter your Dexterity modifier and any bonus features to find your initiative and understand combat order.
What Is Initiative?
At the start of combat, every creature rolls a d20 and adds their initiative bonus. The results are ranked from highest to lowest, and that ranking is the Initiative Order. You act on your turn each round, in that order.
Initiative is a Dexterity check, which is worth remembering because anything that helps Dexterity checks helps here too.
Formula
Initiative Bonus = Dexterity Modifier + Any Additional Bonuses
Common Sources of Initiative Bonuses
| Feature / Feat | Bonus | Source |
|---|---|---|
| Alert feat | +5 | Any level, 2014 rules |
| Bard: Jack of All Trades | half proficiency | Bard level 2 |
| Fighter: Remarkable Athlete (Champion) | half proficiency | Champion level 7 |
| Ranger: Dread Ambusher (Gloom Stalker) | Wisdom modifier | Gloom Stalker level 3 |
| Rogue: Rakish Audacity (Swashbuckler) | Charisma modifier | Swashbuckler level 3 |
| Barbarian: Feral Instinct | Advantage | Barbarian level 7 |
The Alert feat was rewritten in the 2024 rules revision, so check which version your table plays before assuming the flat +5.
Advantage on Initiative
Some features grant advantage: roll two d20s, take the higher.
The average of the higher of two d20s is 13.825 against 10.5 for a single die, so on the roll itself advantage is worth +3.3. In terms of actually beating a specific number it is worth up to +5, and it hits that peak when you needed an 11, which is the case where the two dice have the most room to disagree. Both numbers are correct; they just answer different questions.
Tiebreakers
If two creatures roll the same initiative, the Dungeon Master (DM) decides the order. Common tiebreaker methods:
- Higher DEX modifier goes first
- Players go before monsters on ties
- Roll again to determine order
Ties are not rare. Between two creatures with the same bonus, one roll in twenty comes out level.
Why Initiative Matters
Acting before enemies can be the difference between life and death. A Rogue with high initiative can use Sneak Attack and potentially eliminate a threat before they act. A Wizard who goes first can cast Hold Person and incapacitate enemies for the whole party.
How we build and check this calculator
This calculator runs entirely in your browser, so the numbers you enter stay on your device. The math behind it is written by hand and tested against worked examples and standard references before the page goes live.
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