How to Build Your Ability Scores with Point Buy
Start by deciding how many points you want to spend. The Player's Handbook default is 27, but your DM may allow more or less depending on campaign difficulty. Next, assign base scores to each ability by clicking the input fields. You can spend between 0 and 9 points per ability, corresponding to scores from 8 to 15.
The cost table below shows the point expense for each score. Lower scores are cheap—an 8 costs nothing—but each point higher becomes progressively more expensive. A 15 costs 9 points because high scores represent significant advantages.
Once you've bought your base scores, select your character's race. The calculator applies racial bonuses automatically. Some races grant +2 to one ability and +1 to another; others distribute points differently. If your race isn't listed, choose "Other" and enter custom bonuses. After racial adjustments, your final scores are ready for play.
Point Cost System
Each ability score from 8 to 15 has a fixed point cost. The system uses a non-linear scale that rewards balanced characters and penalises min-maxing at the highest tiers.
Ability Score | Point Cost
8 | 0
9 | 1
10 | 2
11 | 3
12 | 4
13 | 5
14 | 7
15 | 9
Total Cost = Sum of costs for all six abilities
Base Ability Score— The score you buy before racial bonuses. Must be between 8 and 15.Point Cost— The number of points spent to purchase that score.
Ability Scores and Their Modifiers
After purchasing and applying racial bonuses, your final ability scores translate into modifiers that affect nearly every d20 roll in the game. The modifier formula is simple: subtract 10 from your score and divide by 2, rounding down.
Score Range → Modifier
- 8–9 → −1
- 10–11 → +0
- 12–13 → +1
- 14–15 → +2
- 16–17 → +3
- 18–19 → +4
Racial bonuses let you exceed 15. A human fighter buying a 15 Strength and then adding the right racial boost (or feats) could reach 17, granting a +3 modifier. This is why point buy, despite its apparent ceiling, offers flexibility when you account for racial traits.
Point Buy Pitfalls and Strategy
Common mistakes when allocating points can leave your character underpowered or your points wasted.
- Don't Forget Your Primary Stat — Many players spread points evenly and regret it. If you're a wizard, dump 9 points into Intelligence first. If you're a barbarian, prioritise Strength and Constitution. Your class's primary ability should almost always be your highest score.
- Watch the Late-Game Cost Spike — The jump from a 13 to 14 costs 2 extra points; from 14 to 15 costs 2 more. It's tempting to buy multiple 15s, but you may starve secondary stats. A 14 Dexterity with a +2 modifier is often sufficient for non-primary abilities.
- Use Racial Bonuses Strategically — Some races push one ability over 15. If your race grants +2 Intelligence, buying a 15 in Intelligence gives you 17 before level 4 feats. This is powerful but limited to one ability per character unless your DM allows uncommon races with flexibility.
- Validate Your Point Budget — The calculator enforces the 27-point limit in official rules. If your total cost exceeds your budget, you've overspent. Some tables allow 28 or 32 points for higher-powered games; check with your DM and adjust the calculator settings accordingly.
Point Buy vs. Rolling and Standard Array
Point buy offers a middle ground between random rolling and the fixed standard array (15, 14, 13, 12, 10, 8). Rolling dice is fast but unpredictable—you might get a 6 or an 18 and create imbalance. The standard array is reliable and fair but inflexible; everyone gets the same distribution.
Point buy lets you customise within constraints. You choose which ability gets 15 and which gets 8, but the total power level is consistent across all characters. This makes it ideal for competitive campaigns, published adventures, or groups that want fairness without feeling railroaded.
Many experienced players prefer point buy for character building because it removes luck and focuses on tactical choices. Your ability distribution becomes a reflection of your strategy, not the dice gods' whimsy.