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OSRS Combat Level Calculator - Free & Accurate

Calculate your Old School RuneScape combat level for free. Instantly see your exact level and optimize your account build with this easy tool.

⚡ Free to use 📱 Mobile friendly 🕒 Updated: June 21, 2026
🧮 Osrs Combat Level Calculator
📊 Combat Level Breakdown by Skill Contribution
📋 Table of Contents
  1. Use the Osrs Combat Level Calculator
  2. What is Osrs Combat Level Calculator?
  3. How to Use
  4. Formula Used
  5. Example Calculation
  6. Benefits
  7. Tips and Tricks
  8. Conclusion
  9. FAQ (8 Questions)

What is Osrs Combat Level Calculator?

An Osrs Combat Level Calculator is a specialized online tool designed to compute a player's combat level in Old School RuneScape (OSRS) based on their current skill levels. This calculator uses the exact formula implemented by Jagex in the game, taking into account your Attack, Strength, Defence, Hitpoints, Ranged, Magic, and Prayer levels to produce an accurate combat level between 3 and 126. For any player serious about account building, PvP optimization, or slayer monster efficiency, understanding your combat level is crucial because it determines which opponents you can fight, which worlds you can enter, and how other players perceive your account's strength.

New players use this tool to plan their training routes, while veteran players rely on it for pure builds, void ranger setups, and maxed main calculations. The calculator helps you avoid wasting hours training the wrong skill that might accidentally increase your combat level before you are ready. This free Osrs Combat Level Calculator provides instant results without requiring any downloads or login credentials, making it accessible from any device with an internet connection.

Unlike in-game menus that only show your current level, this tool allows you to experiment with hypothetical skill levels to see exactly how each point of experience will affect your overall combat level. This forward-looking capability is invaluable for players who want to stay within a specific combat bracket for wilderness content, bounty hunter targets, or clan war challenges.

How to Use This Osrs Combat Level Calculator

Using this Osrs Combat Level Calculator is straightforward and requires no technical knowledge. The interface is designed to mirror the game's skill interface so you can quickly enter your stats and get an accurate combat level in seconds. Follow these five simple steps to calculate your combat level or plan your next training session.

  1. Enter Your Attack Level: Input your current Attack level (1-99) into the designated field. Attack is a core melee skill that contributes to your base combat level calculation. If you are planning a pure build, enter the target Attack level you want to achieve, such as 50 for a gmaul pure or 75 for a piety build.
  2. Enter Your Strength, Defence, and Hitpoints Levels: Fill in your Strength, Defence, and Hitpoints levels in their respective fields. These three skills, along with Attack, form the melee portion of the combat level formula. Strength is weighted heavily for damage output, Defence provides survivability and also contributes to combat level, and Hitpoints is a direct multiplier in the formula. Make sure to use your exact in-game levels as displayed in the skills tab.
  3. Enter Your Ranged and Magic Levels: Input your Ranged and Magic levels. These skills are compared against your melee stats to determine which combat style is highest. The calculator uses the highest of your melee base (Attack + Strength) or your Ranged or Magic level multiplied by specific coefficients. For hybrid accounts or void rangers, accurate Ranged and Magic levels are essential for correct combat level results.
  4. Enter Your Prayer Level: Input your Prayer level. Prayer is divided by 2 in the formula, meaning every two Prayer levels add one combat level. This makes Prayer a relatively efficient skill to train for combat level gains, especially for low-level accounts. For example, raising Prayer from 1 to 43 only adds about 21 combat levels, which is why many players train Prayer early.
  5. Click Calculate and Review Your Results: After entering all seven skill levels, click the "Calculate Combat Level" button. The tool will instantly display your combat level, along with a breakdown of the formula components. You will see your base melee level, your ranged and magic contributions, and your final combat level. Use the "Reset" button to clear all fields and try different skill combinations.

For best accuracy, double-check that you have entered your levels correctly, especially if you are using the calculator to plan a specific build. The tool also works for hypothetical levels—simply enter the levels you plan to achieve and see how your combat level will change. This is particularly useful for players aiming for specific combat brackets like 75, 100, or the max of 126.

Formula and Calculation Method

The Osrs combat level formula is a carefully balanced equation designed by Jagex to reflect a player's overall combat effectiveness. It considers melee, ranged, magic, and prayer skills in a way that prevents any single combat style from dominating. The formula has remained largely unchanged since the early days of RuneScape, and understanding it is key to optimizing your account. The calculator uses this exact formula to ensure 100% accuracy with in-game results.

Formula
Combat Level = floor( ( (Base + Highest of (Melee, Ranged, Magic) + Prayer ) / 4 ) )
Where:
Base = 0.25 × (Defence + Hitpoints + floor(Prayer / 2) )
Melee = 0.325 × (Attack + Strength)
Ranged = 0.325 × (floor(Ranged / 2) + Ranged)
Magic = 0.325 × (floor(Magic / 2) + Magic)

Each variable in the formula represents a specific skill level from your account. Defence and Hitpoints form the "base" component, providing a foundation that all combat styles share. Prayer is halved and added to the base because it provides passive benefits rather than direct offensive power. The "highest of" component compares your melee potential (Attack + Strength) against your Ranged and Magic levels, each multiplied by a coefficient that accounts for their unique combat mechanics. The entire sum is divided by 4 and then floored (rounded down) to produce the final combat level between 3 and 126.

Understanding the Variables

The inputs required for this Osrs Combat Level Calculator are the seven core combat-related skills: Attack, Strength, Defence, Hitpoints, Ranged, Magic, and Prayer. Attack determines your accuracy with melee weapons and contributes to the melee component. Strength increases your maximum melee hit and is equally weighted with Attack in the formula. Defence reduces how often you are hit and contributes directly to your base combat level. Hitpoints increases your life points and is also part of the base. Ranged and Magic are treated as separate combat styles, each with their own calculation that emphasizes the skill's unique scaling. Prayer provides overhead protection and stat boosts, but only half its level counts toward combat level.

The formula also includes a special rule for players with very low levels: if the calculated combat level is less than 3, it is set to 3. Additionally, for accounts with a Prayer level of 0 (such as level 3 skillers), the formula still works correctly because Prayer is floored to 0. The calculator handles all these edge cases automatically, ensuring accurate results for every account type from level 3 skillers to maxed mains.

Step-by-Step Calculation

To manually calculate your combat level, start by computing your base component: take your Defence level, add your Hitpoints level, then add half your Prayer level (rounded down), and multiply the total by 0.25. Next, calculate your melee component by adding your Attack and Strength levels, then multiplying by 0.325. Calculate your ranged component by taking half your Ranged level (rounded down), adding your full Ranged level, and multiplying by 0.325. Do the same for Magic. Compare the three offensive components and select the highest value. Add this highest value to your base component, add half your Prayer level again (this is the Prayer component), then divide the total by 4. Finally, round down to the nearest whole number. That is your combat level.

For example, a player with 70 Attack, 70 Strength, 70 Defence, 70 Hitpoints, 70 Ranged, 70 Magic, and 70 Prayer would have a base of 0.25 × (70 + 70 + 35) = 43.75. Their melee component would be 0.325 × (70 + 70) = 45.5. Their ranged component would be 0.325 × (35 + 70) = 34.125. Their magic component would be the same: 34.125. The highest offensive component is 45.5 (melee). The Prayer component is 35. So the total is (43.75 + 45.5 + 35) / 4 = 31.0625, which floors to 31. This matches the in-game combat level for a balanced level 70 account.

Example Calculation

To demonstrate the practical use of this Osrs Combat Level Calculator, consider a real-world scenario that many players encounter. A player named Alex is building a "zerk pure" account—a popular PvP build that stays at 45 Defence while maximizing Strength and Ranged. Alex currently has 60 Attack, 85 Strength, 45 Defence, 80 Hitpoints, 75 Ranged, 55 Magic, and 52 Prayer. He wants to know his current combat level and how it will change if he raises Strength to 90.

Example Scenario: Alex's current stats: Attack 60, Strength 85, Defence 45, Hitpoints 80, Ranged 75, Magic 55, Prayer 52. He wants to know his combat level now and after reaching 90 Strength.

First, calculate the base: Defence (45) + Hitpoints (80) + floor(Prayer/2) = 45 + 80 + 26 = 151. Multiply by 0.25 = 37.75. Next, melee component: Attack (60) + Strength (85) = 145, multiplied by 0.325 = 47.125. Ranged component: floor(Ranged/2) = floor(75/2) = 37, plus Ranged (75) = 112, multiplied by 0.325 = 36.4. Magic component: floor(55/2) = 27, plus 55 = 82, multiplied by 0.325 = 26.65. The highest offensive component is melee at 47.125. Prayer component is 26 (floor of 52/2). Total = (37.75 + 47.125 + 26) / 4 = 110.875 / 4 = 27.71875, which floors to 27. Alex's current combat level is 27.

Now, if Alex raises Strength to 90, the melee component becomes (60 + 90) × 0.325 = 48.75. The base and prayer components remain the same. New total = (37.75 + 48.75 + 26) / 4 = 112.5 / 4 = 28.125, which floors to 28. So Alex gains one combat level from training Strength from 85 to 90. This information helps Alex decide whether the combat level increase is worth the stat gain for his PvP bracket.

Another Example

Consider a different scenario: a player named Sarah is building a "void ranger" account with 99 Ranged, 42 Defence, 99 Hitpoints, 99 Prayer, and minimal melee stats. She has 40 Attack, 40 Strength, 42 Defence, 99 Hitpoints, 99 Ranged, 1 Magic, and 99 Prayer. Using the calculator, base = (42 + 99 + floor(99/2)=49) = 190, times 0.25 = 47.5. Melee = (40+40)×0.325 = 26. Ranged = floor(99/2)=49 + 99 = 148, times 0.325 = 48.1. Magic = floor(1/2)=0 + 1 = 1, times 0.325 = 0.325. Highest offensive is Ranged at 48.1. Prayer component = 49. Total = (47.5 + 48.1 + 49) / 4 = 144.6 / 4 = 36.15, floors to 36. Sarah's combat level is 36, which is ideal for fighting in low-level wilderness or against other ranger pures. This example shows how the calculator helps optimize specialized builds.

Benefits of Using Osrs Combat Level Calculator

Using an Osrs Combat Level Calculator offers significant advantages over manual calculation or relying on in-game displays. While the game shows your current combat level, it does not show how future training will affect it. This tool provides predictive power that is essential for efficient account planning. Whether you are a new player or a seasoned veteran, the benefits are substantial and directly impact your gameplay experience.

  • Accurate Build Planning: The calculator allows you to experiment with different skill combinations before committing time to training. For example, you can see exactly how raising Strength from 80 to 90 affects your combat level compared to raising Ranged from 80 to 90. This prevents wasted experience on skills that would push you into an unwanted combat bracket. Pure accounts, zerks, and void rangers rely on this precision to maintain optimal combat levels for PvP.
  • Time and Effort Savings: Manual calculation of the combat level formula is tedious and error-prone, especially when considering floor functions and comparisons between three offensive styles. This tool performs the calculation in milliseconds, saving you from arithmetic mistakes. You can test dozens of level combinations in minutes, allowing you to find the most efficient training path to reach a target combat level.
  • PvP Bracket Optimization: In Old School RuneScape, PvP is often restricted by combat level brackets. For example, the Wilderness has different level ranges for different content. Using this calculator, you can plan an account that stays within a specific bracket, such as 50-60 combat for low-level bounty hunter, or 100-110 for deep wilderness fights. This gives you a competitive advantage by ensuring you face opponents with similar stats.
  • No Login Required: Unlike in-game tools or third-party clients that require account credentials, this free calculator works entirely in your browser. There is no risk of account compromise, no need to download software, and no advertisements interrupting your calculations. It is accessible on any device, including mobile phones, making it easy to check stats while playing.
  • Educational Value: By using the calculator, you learn how the combat level formula works. You will understand why certain skills are more "expensive" in terms of combat level gain than others. For instance, you will see that Prayer is half as impactful as Defence, and that Ranged and Magic are slightly less efficient than melee for combat level increases. This knowledge helps you make smarter training decisions across all your accounts.

Tips and Tricks for Best Results

To get the most out of this Osrs Combat Level Calculator, follow these expert tips and avoid common pitfalls. Whether you are planning a maxed main, a pure, or a skiller, these insights will help you use the tool effectively and interpret the results correctly.

Pro Tips

  • Always use your exact in-game levels as displayed in the skills tab. Do not round up or estimate, as even one level difference can change your combat level, especially near bracket boundaries like 75, 100, or 126.
  • When planning a build, test multiple "what-if" scenarios. For example, compare the combat level of 60 Attack/90 Strength versus 75 Attack/75 Strength. The calculator will show you which combination gives a lower combat level for the same total damage output.
  • Pay attention to the Prayer component. Since Prayer is halved, training Prayer from 1 to 43 adds roughly 21 combat levels, but from 43 to 99 adds another 28. For low-level accounts, stopping at 43 Prayer (for Protect from Melee) is often optimal. The calculator helps you see the exact impact.
  • Use the calculator to check your combat level after every major training session. Even a single level in Attack or Strength can push you into a new bracket, which might affect your wilderness safety or PvP matchmaking.
  • For skiller accounts (level 3), verify that all combat skills remain at 1. The calculator will correctly output 3 for any account with all combat stats at 1, but double-check that you haven't accidentally gained any Hitpoints or Prayer experience from quests.

Common Mistakes to Avoid