Roll 8d20
Free online 8d20 dice roller and calculator. Roll 8 d20 instantly — see results, min 8, max 160, and average 84.
Quick roll
Dice notation
kh keep highest · kl keep lowest · dl drop lowest · Space roll
Presets
Roll lines
Roll log
Your roll history appears here.
Need to roll 8d20? Dice Cove’s roller is preloaded with 8d20 so you can roll once or many times, log every result, and check the math: minimum 8, maximum 160, expected average 84.
8d20 calculator stats
- Minimum: 8
- Maximum: 160
- Average: 84
Use this page as a quick 8d20 roller and average calculator — roll as many times as you need and compare totals to the 84 expected value. For keep/drop rules and custom formulas, open the dice calculator.
How to roll 8d20
- Press Roll — notation is already set to 8d20.
- Add a modifier (for example 8d20+5) when damage or a bonus applies.
- Check the roll log to compare several 8d20 results in a row.
- Switch dice anytime via the tray or the full dice roller.
Common 8d20 uses
- Quick 8d20 damage or table rolls at the table
- Multi-attack checks or mass d20 rolls
- Compare results to the 84 average for 8d20
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- Dice calculator — averages, odds, and custom notation
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Frequently asked questions
What is the average of 8d20?
The average of 8d20 is 84. Each d20 averages 10.5, so 8 × 10.5 = 84.
What is the minimum and maximum for 8d20?
8d20 ranges from 8 (all 1s) to 160 (all 20s).
How do I roll 8d20 with a modifier?
Type 8d20+3 (or use the modifier field) to add a bonus to the total — useful for damage riders and spell attack modifiers.