D&D Reference Tool
Free web tool: D&D Reference Tool
D&D 5e Reference
Quick reference tables for ability score modifiers, spell slots, conditions, and combat actions.
Ability Score Modifiers
1
-5
2
-4
3
-4
4
-3
5
-3
6
-2
7
-2
8
-1
9
-1
10
+0
11
+0
12
+1
13
+1
14
+2
15
+2
16
+3
17
+3
18
+4
19
+4
20
+5
21
+5
22
+6
23
+6
24
+7
25
+7
26
+8
27
+8
28
+9
29
+9
30
+10
Modifier = floor((Score - 10) / 2). Proficiency bonus: Lv1–4 = +2, Lv5–8 = +3, Lv9–12 = +4, Lv13–16 = +5, Lv17–20 = +6.
About D&D Reference Tool
The D&D 5e Reference tool provides four essential quick-reference tables for Dungeons & Dragons 5th Edition players and Dungeon Masters. The Ability Scores tab displays all 30 possible ability score values (1–30) alongside their corresponding modifiers, calculated using the standard formula floor((score - 10) / 2). Proficiency bonus progression from +2 at levels 1–4 up to +6 at levels 17–20 is also shown below the grid for quick look-up during character creation or leveling.
The Spell Slots tab shows the complete spell slot progression table for full caster classes (Bard, Cleric, Druid, Sorcerer, and Wizard) from level 1 through level 20, across all nine spell levels. A footnote clarifies the differences for half casters (Paladin and Ranger, who use half their character level for slot progression) and Warlocks (who use Pact Magic slots instead). The Conditions tab lists all 15 official D&D 5e conditions — from Blinded and Charmed to Exhaustion (with all 6 levels) and Unconscious — with a searchable filter. The Combat Actions tab covers all 13 standard actions available in combat, including Attack, Dash, Dodge, Ready, and special attacks like Grapple and Shove.
This reference is designed to be used alongside physical or digital play sessions. Rather than flipping through the Players Handbook or DMG during a session, you can open this reference on a second screen or phone. The search functionality in both the Conditions and Combat Actions tabs lets you filter entries by name or description text in real time, so you can find the rule you need in under a second. All data is embedded directly in the page — no API calls, no loading states.
Key Features
- Ability score modifier grid for all scores 1–30 with the floor((score-10)/2) formula displayed
- Proficiency bonus table by level (+2 at Lv1-4 through +6 at Lv17-20)
- Full caster spell slot table for all 20 levels across all 9 spell levels
- Footnotes explaining half caster (Paladin/Ranger) and Warlock Pact Magic differences
- All 15 official D&D 5e conditions with concise rule descriptions (including all 6 Exhaustion levels)
- 13 combat actions including special attacks (Grapple, Shove) and reactions (Opportunity Attack)
- Real-time search/filter for Conditions and Combat Actions by name or description text
- 100% offline-capable — all reference data is embedded in the page with no external requests
Frequently Asked Questions
How do I calculate an ability score modifier in D&D 5e?
The formula is floor((score - 10) / 2). A score of 10 or 11 gives +0. A score of 8 or 9 gives -1. A score of 20 gives +5. This table shows all modifiers from score 1 (modifier -5) through score 30 (modifier +10), covering every possible value including those granted by magic items and class features.
What is the proficiency bonus at each level?
Proficiency bonus starts at +2 for levels 1–4, increases to +3 at levels 5–8, +4 at levels 9–12, +5 at levels 13–16, and reaches +6 at levels 17–20. It is added to attack rolls, saving throws, and skill checks for which you have proficiency.
How many spell slots does a level 5 Wizard have?
A level 5 full caster has 4 first-level spell slots, 3 second-level slots, and 2 third-level slots. The spell slot table in this reference covers all 20 levels for full caster classes including Bard, Cleric, Druid, Sorcerer, and Wizard.
What are all the conditions in D&D 5e?
The 15 official conditions are: Blinded, Charmed, Deafened, Frightened, Grappled, Incapacitated, Invisible, Paralyzed, Petrified, Poisoned, Prone, Restrained, Stunned, Unconscious, and Exhaustion (which has 6 levels of increasing severity). Each is listed in the Conditions tab with its full mechanical effects.
What is the difference between a Bonus Action and a Reaction?
A Bonus Action is an optional additional action available on your turn if a class feature, spell, or ability grants one (e.g., Cunning Action, Two-Weapon Fighting). A Reaction is triggered in response to a specific event on any turn — yours or another's. Common reactions include Opportunity Attacks (when a hostile creature leaves your reach) and the Ready action's trigger.
What does the Exhaustion condition do?
Exhaustion has 6 levels. Level 1 gives disadvantage on ability checks. Level 2 halves your speed. Level 3 adds disadvantage on attack rolls and saving throws. Level 4 halves your hit point maximum. Level 5 reduces your speed to 0. Level 6 causes death. Each long rest removes one level of exhaustion.
What is the difference between full casters and half casters?
Full casters (Bard, Cleric, Druid, Sorcerer, Wizard) gain spell slots at the rate shown in the Spell Slots table. Half casters (Paladin and Ranger) progress as if they were half their character level — a level 10 Paladin has the spell slots of a level 5 full caster. Warlocks use a completely different Pact Magic system with fewer but higher-level slots that recharge on a short rest.
How does a Grapple work in combat?
To grapple, you replace one of your attacks with a grapple attempt. You make a Strength (Athletics) check contested by the target's Strength (Athletics) or Dexterity (Acrobatics) check (their choice). On success, the target gains the Grappled condition — their speed becomes 0. The grapple ends if you are incapacitated or if the target is moved beyond your reach.