Mithral Armor (Plate)
D&D 5e · 2024·Heavy armor·Uncommon·No attunement
Your Dexterity modifier does not change this Armor Class, up or down.
Armor Class calculator
- Category
- Heavy armor
- Dex bonus
- None
- Stealth
- No penalty
- Strength
- None
- Weight
- 65 lb
- Don / doff
- 10 minutes / 5 minutes
- Rarity
- Uncommon
- Price
- Not specified
Magic: The armor has no Strength requirement and imposes no Disadvantage on Dexterity (Stealth) checks.
Calculator assumptions & rules
Uses this entry’s AC formula, Dexterity cap and listed shield bonus. Magic AC already included in the entry is counted once. Features, spells, alternative AC formulas and exceptions to Strength penalties are excluded. You still need the required armor training or proficiency.
Changing calculator inputs does not change the item’s rules or create a new page URL.
Mithral Armor AC by armor type
Choose a published armor variant to see its full statistics and calculator for this edition.
| Armor | Armor Class | Stealth |
|---|---|---|
| Chain Shirt | 13 + Dex (max 2) | — |
| Scale Mail | 14 + Dex (max 2) | — |
| Breastplate | 14 + Dex (max 2) | — |
| Half Plate | 15 + Dex (max 2) | — |
| Ring Mail | 14 | — |
| Chain Mail | 16 | — |
| Splint | 17 | — |
| Plate | 18 | — |
What Mithral Armor does
- AC 18 does not improve with Dexterity. Compare armor options using your actual Dexterity modifier rather than their base AC alone.
- It does not impose Stealth Disadvantage from the armor itself, which preserves more options for sneaking.
Mithral is a light, flexible metal. Armor made of this substance can be worn under normal clothes. If the armor normally imposes Disadvantage on Dexterity (Stealth) checks or has a Strength requirement, the mithral version of the armor doesn't. This is the Plate Armor variant.
Full item details & properties
Magic properties
- Activation
- Wear this armor.
- Consumable
- No
- Concealment
- Can be worn under normal clothes.
- Conditions & limits
- The armor has no Strength requirement and imposes no Disadvantage on Dexterity (Stealth) checks. It can be worn under normal clothes. Its base Armor Class, Dexterity cap and armor-training rules still apply. The item entry gives no numeric weight reduction; weight follows the cited base armor table.
Armor details
- Armor Class
- 18
- Category
- Heavy
- Dexterity modifier
- Not added
- Strength to avoid Speed penalty
- No threshold
- Stealth disadvantage
- No
- Don
- 10 minutes
- Doff
- 5 minutes
Tags & related references
Compare alternatives
Same edition, using your calculator inputs above. Special properties and character features can change the choice.
Same base armor; compare magical benefits
Armor of InvulnerabilityAC 1818 AC · Stealth DisadvantageNot specified · 65 lbSame base armor; compare magical benefits
Armor of Resistance (Plate)AC 1818 AC · Stealth DisadvantageNot specified · 65 lbSame base armor; compare magical benefits
Armor of Vulnerability (Plate Armor)AC 1818 AC · Stealth DisadvantageNot specified · 65 lbSame base armor; compare magical benefits
Mithral Armor FAQ
What Armor Class does Mithral Armor (Plate) give?
It starts at AC 18. Dexterity does not change its AC, whether your modifier is positive or negative.
Does Mithral Armor require attunement?
No. This entry does not require attunement; follow its activation and use rules.
Is the listed price a guaranteed purchase price?
The source does not specify a price for this entry. Ask your GM about availability and cost.