Calculator Inputs
Export Options
Use these buttons after a calculation. If no result exists, sample data will be exported.
Example Data Table
| Save Type | Ability Score | Proficient | Other Bonus | DC | Mode | Chance Note |
|---|---|---|---|---|---|---|
| Dexterity | 16 | Yes | +1 | 15 | Normal | Strong chance |
| Constitution | 14 | Yes | +0 | 16 | Advantage | Good chance |
| Wisdom | 10 | No | +2 | 14 | Normal | Moderate chance |
| Strength | 8 | No | +0 | 13 | Disadvantage | Low chance |
Formula Used
Ability Modifier: floor((Ability Score - 10) / 2)
Total Save Bonus: Ability Modifier + Proficiency Bonus if proficient + Other Modifier
Final Save Total: d20 Roll + Total Save Bonus + Extra Die Result
Success Rule: Final Save Total must be greater than or equal to the target DC.
Advantage: Roll two d20s and use the higher result.
Disadvantage: Roll two d20s and use the lower result.
How to Use This Calculator
Enter the character or monster name first. Choose the saving throw type. Add the matching ability score. Add the proficiency bonus from the character sheet. Check the proficiency box only when that save is proficient.
Enter the target DC from the spell, trap, poison, monster feature, or house ruling. Add any extra modifier from magic items, class features, auras, cover, or temporary effects.
Choose normal, advantage, or disadvantage. Select an extra die if a feature adds one. Enter an actual d20 result when you want to check a rolled save. Press the calculate button. The result appears below the header and above the form.
Article: Calculating Saving Throws in 5e
Why Saving Throws Matter
Saving throws decide whether a character resists danger. They cover poison, fear, explosions, traps, spells, and many other threats. A save starts with an ability modifier. The relevant ability depends on the effect. Dexterity often avoids blasts. Constitution often resists poison or exhaustion. Wisdom often resists charm and fear.
Building the Save Bonus
A character may add proficiency to certain saves. Class features, magic items, auras, spells, and cover can add more. This calculator keeps those parts separate. That makes review easier during play. It also helps new players see why a save bonus changes.
Understanding DC and Rolls
The target number is the Difficulty Class, usually called DC. A roll succeeds when the final total meets or beats that DC. The final total is the d20 result, plus the save bonus, plus any extra die. Some tables use a natural 1 or natural 20 house rule. The tool includes that option, but it can stay off for rules as written.
Advantage and Disadvantage
Advantage and disadvantage change the odds strongly. Advantage keeps the higher die. Disadvantage keeps the lower die. A small bonus may be less helpful than advantage. A hard DC may still be possible with Bless or Bardic Inspiration. The probability estimate shows these effects before a roll happens.
Planning and Table Use
Use the actual roll fields after a player rolls. They confirm whether that result passes. Use the chance fields before a monster casts a spell. They estimate risk and help balance encounters. You can also compare armor, feats, class choices, and party support.
Saving Results
The export buttons help save the result. Download a CSV for spreadsheets. Download a PDF for notes, session logs, or encounter files. The example table shows common saves across several DC levels.
Final Notes
Remember that the calculator supports planning. It does not replace the Dungeon Master. Effects may have special rules. Some features grant rerolls. Others convert failure into partial success. Add those effects as modifiers when possible. Apply unique wording at the table when needed. Clear notes make the save faster, fairer, and easier for every player. For best results, enter temporary effects separately. Do not hide them inside the ability score. That keeps the record clear. It also lets you repeat the same character save against many different spells or traps. During one busy session.
FAQs
What is a saving throw in 5e?
A saving throw is a defensive roll. It checks whether a character resists a harmful effect, spell, trap, poison, fear, or similar danger.
How do I calculate a saving throw bonus?
Add the related ability modifier. Then add proficiency if the character is proficient in that save. Add any other active bonuses.
Does proficiency apply to every save?
No. Proficiency applies only to saving throws granted by class, features, items, or other rules. Check the character sheet first.
What does DC mean?
DC means Difficulty Class. The saving throw total must meet or beat this number to succeed against the effect.
How does advantage affect a saving throw?
With advantage, roll two d20s and use the higher result. This usually increases the chance of success by a large amount.
How does disadvantage affect a saving throw?
With disadvantage, roll two d20s and use the lower result. This usually reduces the chance of success sharply.
Should natural 1 and natural 20 rules apply?
Many tables treat them as special results. Rules can vary. Use the checkbox only when your table wants that option.
Can I include Bless or Bardic Inspiration?
Yes. Select the matching extra die. The calculator estimates the chance by including every possible result from that extra die.