D&D Spell Save DC Calculator – 5e Spellcasting Guide
D&D Spell Save DC Calculator
Calculate your 5e spell save DC, spell attack bonus, and hit chances instantly
Quick Preset:
Base
8
+
Prof Bonus
+3
+
Ability Mod
+3
=
Spell Save DC
14
Spell Save DC
14
Targets must beat this
Spell Attack Bonus
+6
Added to d20 roll
DC vs Avg Monster
65%
Fail chance vs +4 save
Hit Chance vs AC 15
60%
Spell attack vs AC 15
Proficiency Bonus: +3 |
Ability Modifier: +3 |
Class Ability: INT
Save Success Chance – Who Succeeds Against Your DC?
| Save Bonus | Example | Needs (d20) | Success Chance | Visual |
|---|
Spell Attack Hit Chance – Can You Beat Their AC?
| Target AC | Example Target | Needs (d20) | Hit Chance | Visual |
|---|
Spell Save DC Effectiveness
| Target Save Bonus | Fail Chance |
|---|
Spell Attack Effectiveness
| Target AC | Hit Chance |
|---|
Spell Save DC by Level – Reference Table
| Level | Prof Bonus | Wizard INT 18 | Cleric WIS 16 | Sorcerer CHA 20 | Warlock CHA 18 |
|---|---|---|---|---|---|
| 1–4 | +2 | 14 | 13 | 15 | 14 |
| 5–8 | +3 | 15 | 14 | 16 | 15 |
| 9–12 | +4 | 16 | 15 | 17 | 16 |
| 13–16 | +5 | 17 | 16 | 18 | 17 |
| 17–20 | +6 | 18 | 17 | 19 | 18 |
Spellcasting Classes & Primary Ability
Wizard
INT
Artificer
INT
Cleric
WIS
Druid
WIS
Ranger
WIS
Bard
CHA
Paladin
CHA
Sorcerer
CHA
Warlock
CHA
Maximize Your Spell Save DC
Your spell save DC scales with both your spellcasting ability score and your proficiency bonus. At level 17+, a Sorcerer with CHA 20 reaches DC 19 — the highest possible without magic items. Increasing your primary ability score through Ability Score Improvements (ASIs) at levels 4, 8, 12, 16, and 19 is the most reliable way to raise your DC throughout a campaign.
DC vs Spell Attack: Which Is Better?
Spell save DC forces enemies to roll against a fixed number, which is often stronger against multiple targets. Spell attack rolls directly against AC and can critically hit (double damage dice), making them better for single-target burst. Many powerful spells like Fireball and Hold Person use saves, while Magic Missile and Eldritch Blast use attack rolls. Understanding both helps you optimize your spell selection for each encounter.
In Dungeons & Dragons 5th Edition, the spell save DC is basically the magic number that determines whether target succeeds to dump the effects of spell. When you use spell that forces some to make a saving throw this happens; if they roll high enough to match or beat your spell save DC, they either escape the impact or at least reduce the loss. It operates as guard between your magic force and the target that wants to go undamaged.
The math behind that is simple. You start with 8 as base, add your proficiency bonus, and later your spellcasting ability modifier. That gives number that stays permanent until your stats adjust.
What Is Spell Save DC and How to Find It
Which ability you use depends entirely on your class, for instance, Intelligence for wizard, Wisdom for cleric or Charisma for sorcerer. The description of the spell says to you which ability the target uses and what happens if he suceeds or fail.
Some samples will help to explain that. Imagine that you are first-level sorcerer with 16 Charisma, your DC is 13. That is 8 plus 2 of proficiency and 3 of the Charisma modifier.
Compare that with fifth-level cleric with 18 Wisdom: he has DC of 15, because he counts 8 plus 3 proficiency and 4 of the Wisdom modifier. Level four wizard with 18 Intelligence would have DC of 14, assuming that he does not have other bonuses.
When you choose spells for your collection, you will find many that require saving throws. Take for example Vicious Mockery, popular choice for bards. Or for instance Bane, it forces the target to make a Charisma saving throw, what means that they roll by means of his own Charisma to try to beat your DC.
Both your proficiency bonus and your ability modifier grow when you rise in level. Those proficiency bonuses go from +2 until +6 in the highest levels. Without magic items, the maximum DC is 19, that is your base 8, plus 5 of maximum stat (20), and +6 proficiency at level 17.
In the Player’s Handbook there are no standard feats to increase the DC, so improving your ability is your main way.
But magic items entirely alter the game. Twenty-level Warlock with 20 Charisma, that uses +3 Rod of the Pact Keeper, reaches DC of 22. Robe of the Archmagi adds another 2 points.
When you play high-level games with magic gear, reaching more than 20 becomes entirely possible. You theoretically could reach 30 or more with some wild builds.
One last important thing: when saving throw ends in a tie, the target wins. That is the opposite side of attack rolls, where you as attacker have the advantagewith.
