LoL Runes Calculator
Accurately determine the bonus stats from any rune page combination.
Primary Runes
Secondary Runes
Stat Shards
Total Stats From Runes
This shows the base stats gained. Many runes have conditional effects not shown here.
| Statistic | Value |
|---|
Stat Visualization
What is a LoL Runes Calculator?
A lol runes calculator is a specialized tool that allows players of the popular game League of Legends to plan and analyze their rune pages. Runes are pre-game customizations that provide champions with specific statistical bonuses and unique passive abilities. Choosing the right combination is crucial for optimizing a champion’s performance for a specific matchup or playstyle. This calculator helps you see the exact flat stats you gain from your selections, making it easier to build the perfect page before you even enter a match.
Unlike in-game, where time is limited during champion select, a calculator provides a relaxed environment to explore different combinations. You can mix and match primary and secondary paths, experiment with different keystones, and see how stat shards impact your early-game power. For more in-depth theorycrafting, you might also be interested in a DPS calculator for LoL to see how these stats translate into damage.
The “Formula” Behind Rune Calculations
There isn’t a single complex formula for a lol runes calculator. Instead, the calculation is a process of **summation**. The calculator works by adding up all the individual stats granted by your chosen runes and shards.
The process is as follows:
- Path Bonus: The calculator identifies your primary and secondary rune paths and adds the unique stat bonus they provide (e.g., Precision + Domination gives a different bonus than Precision + Sorcery).
- Rune Stats: It adds any flat stats provided by your selected Keystone and three minor runes in the primary path.
- Secondary Rune Stats: It adds the stats from the two minor runes selected in the secondary path.
- Stat Shard Stats: Finally, it adds the values from the three stat shards (Offense, Flex, and Defense).
The final totals for each statistic are then displayed. The key variable is “Adaptive Force,” which grants either Attack Damage (AD) or Ability Power (AP) based on which stat your champion has more of from other sources. Our calculator assumes you will build toward your primary damage type.
Key Variables (Stats)
| Variable | Meaning | Unit | Typical Range (from Runes) |
|---|---|---|---|
| Attack Damage (AD) | Increases physical damage from basic attacks and some abilities. | Points | 5 – 15 |
| Ability Power (AP) | Increases magical damage from abilities. | Points | 9 – 25 |
| Attack Speed (AS) | Increases the rate of basic attacks. | Percentage (%) | 9% – 18% |
| Health (HP) | Your champion’s total life points. | Points | 15 – 140 |
| Armor | Reduces incoming physical damage. | Points | 6 – 12 |
| Magic Resist (MR) | Reduces incoming magical damage. | Points | 8 – 12 |
| Ability Haste | Reduces ability cooldowns. | Points | 8 – 18 |
Practical Examples
Example 1: ADC Jinx Setup
An Attack Damage Carry (ADC) like Jinx wants to maximize her attack speed and damage. A common setup might look like this:
- Primary Path: Precision (for sustained damage)
- Keystone: Lethal Tempo (Attack Speed)
- Secondary Path: Sorcery (for utility stats)
- Inputs: Precision + Sorcery paths, Lethal Tempo, Presence of Mind, Legend: Alacrity, Coup de Grace, Manaflow Band, Gathering Storm.
- Shards: Attack Speed, Adaptive Force, Armor.
- Result: This setup gives significant Attack Speed from the path bonus, Legend: Alacrity, and the shard, preparing Jinx for late-game team fights. The adaptive force converts to AD, and Gathering Storm ensures her damage scales over time.
Example 2: Tank Ornn Setup
A tank like Ornn in the top lane wants to be as durable as possible. For tank builds, check out our guide on ARAM builds which often prioritize survivability.
- Primary Path: Resolve (for durability)
- Keystone: Grasp of the Undying (for trading and health stacking)
- Secondary Path: Inspiration (for utility)
- Inputs: Resolve + Inspiration paths, Grasp of the Undying, Demolish, Conditioning, Overgrowth, Biscuit Delivery, Cosmic Insight.
- Shards: Ability Haste, Armor, Health.
- Result: This configuration provides a massive boost to survivability. Conditioning provides a percentage increase to Armor and MR, Overgrowth grants bonus health, and the health shard makes his early laning phase safer.
How to Use This LoL Runes Calculator
Using the calculator is a straightforward process:
- Select Your Primary Path: Use the first dropdown to choose your main rune tree (e.g., Precision, Domination). The Keystone and other rune slots will automatically update.
- Choose Your Primary Runes: Select one Keystone and one rune from each of the three subsequent slots.
- Select Your Secondary Path: Choose your secondary tree from the remaining options. The final two rune slots will update. Note: you cannot select your primary path as your secondary.
- Choose Your Secondary Runes: Select two different runes from the available slots in your secondary path.
- Select Your Stat Shards: Pick one option from each of the three shard rows: Offense, Flex, and Defense.
- Interpret the Results: The table and chart at the bottom will instantly update, showing the total statistical value of your choices. Use this information to fine-tune your build.
Key Factors That Affect Rune Choices
Choosing the best runes isn’t just about raw stats. Here are key factors to consider:
- Your Champion: Does your champion rely on basic attacks (choose Precision) or ability combos (choose Domination or Sorcery)?
- Your Lane Opponent: Facing a heavy physical damage dealer? Consider taking an Armor shard. Against a mage? A Magic Resist shard is better.
- Enemy Team Composition: Is the enemy team full of crowd control (CC)? The “Legend: Tenacity” rune or the “Unflinching” rune might be necessary.
- Your Playstyle: Do you prefer aggressive, short trades (Electrocute) or long, extended fights (Conqueror, Lethal Tempo)?
- Scaling vs. Early Game: Runes like “Gathering Storm” are weak early but powerful late. Runes like “Scorch” are strong early but fall off. Decide when you need your power spike. Find the right balance with a rune optimizer.
- Synergy: Some runes work incredibly well together. For example, “Shield Bash” in the Resolve tree is a great pick if your champion has a self-shielding ability.
Frequently Asked Questions (FAQ)
1. What is Adaptive Force?
Adaptive Force is a stat that automatically converts to either Attack Damage (AD) or Ability Power (AP), whichever your champion has more of from items and base stats. This makes rune pages more flexible.
2. Does this lol runes calculator account for in-game scaling?
This calculator primarily shows the base stats provided at the start of the game. It does not calculate the scaling effects of runes like “Gathering Storm” or the stacks from “Conqueror” in real-time, as those are conditional on game events.
3. Can I select the same rune twice?
No. The rune system requires you to select a unique rune from each slot.
4. Why can’t I pick certain secondary runes?
When you pick your secondary path, you can choose two runes from any of the three non-Keystone slots. However, you can only pick one from each slot (e.g., you can’t take two runes from the first slot of the Sorcery tree).
5. Is there a ‘best’ rune page?
No. The optimal rune page is highly situational and depends on the champion you’re playing, your matchup, and the enemy team composition. A tool like our lol runes calculator is for exploring these different options.
6. How important are stat shards?
Stat shards are extremely important for the first few levels of the game. Choosing between 9% Attack Speed, 10 Adaptive Force, or 8 Ability Haste can decide early trades and your ability to farm minions effectively.
7. Does the path bonus change?
Yes. The small stat bonus you get is determined by the combination of your Primary and Secondary paths. For example, a Precision/Domination combination gives a different bonus than a Precision/Resolve combination.
8. Where can I find good builds to try in the calculator?
Websites like OP.GG, U.GG, and Mobafire are excellent resources for finding high-winrate builds for every champion, which you can then input into this calculator to analyze. To understand how items contribute, you may also use a TFT item cheat sheet as a reference for stat concepts.