OSRS Combat Lvl Calculator
Calculate your precise combat level and analyze stat requirements for your next level up.
0.00 / 1.00
Atk/Str: 3
Formula: 0.25 * (Defence + HP + floor(Prayer/2)) + max(0.325*(Atk+Str), 0.325*floor(3/2*Magic), 0.325*floor(3/2*Ranged))
Combat Contribution Breakdown
Visual representation of how your base stats vs offensive stats impact your total osrs combat lvl calculator result.
What is the OSRS Combat Lvl Calculator?
The osrs combat lvl calculator is an essential tool for players of Old School RuneScape to determine their character’s overall strength. Unlike many other RPGs where level is determined solely by experience points, OSRS uses a unique mathematical formula that weighs different skills. Your combat level determines which monsters you can fight effectively and, more importantly, which players you can engage in the Wilderness.
Who should use an osrs combat lvl calculator? Primarily, PKers (Player Killers) use it to stay within specific “brackets” to optimize their damage output relative to their level. Ironman players also use it to gauge when they are ready for high-level bosses like General Graardor or Zulrah. A common misconception is that all stats contribute equally; in reality, your Magic and Ranged levels only affect your combat level if they “overtake” your Melee stats (Attack and Strength).
OSRS Combat Lvl Calculator Formula and Mathematical Explanation
The osrs combat lvl calculator operates on a two-part formula. First, a “Base Level” is calculated using defensive stats. Second, an “Offensive Contribution” is added based on your highest combat style.
| Variable | Meaning | Unit | Typical Range |
|---|---|---|---|
| Attack / Strength | Melee prowess | Level | 1 – 99 |
| Defence / Hitpoints | Survivability | Level | 1 – 99 (HP starts at 10) |
| Prayer | Divine protection | Level | 1 – 99 |
| Magic / Ranged | Ranged/Magic prowess | Level | 1 – 99 |
The math follows: Combat Level = Base + Max(Melee, Ranged, Magic). The base is 0.25 * (Defence + Hitpoints + floor(Prayer/2)). The offensive multipliers are 0.325 times the sum of Attack and Strength, or 0.325 times 1.5 times your Magic or Ranged level.
Practical Examples (Real-World Use Cases)
Example 1: The Pure Build
A “1 Def Pure” focusing on high damage might have: Attack 60, Strength 90, Defence 1, Hitpoints 80, Prayer 52, Ranged 90, Magic 94. Using the osrs combat lvl calculator, the base is 0.25 * (1 + 80 + 26) = 26.75. The melee contribution is 0.325 * (60 + 90) = 48.75. The magic contribution is 0.325 * floor(94 * 1.5) = 45.825. Since melee is higher, the level is 26.75 + 48.75 = 75.5, which floors to level 75.
Example 2: The Maxed Main
A player with 99 in all stats: Base = 0.25 * (99 + 99 + 49) = 61.75. Melee = 0.325 * (99 + 99) = 64.35. Total = 126.1, which results in the maximum OSRS combat level of 126.
How to Use This OSRS Combat Lvl Calculator
- Enter your current skill levels into the input fields provided.
- Observe the “Main Result” which updates in real-time as you type.
- Check the “Next Level Progress” to see how close you are to the next combat tier.
- Use the “Levels to Level Up” section to see exactly how many Attack, Strength, or Prayer levels you can gain without increasing your total combat level.
- Click “Copy Stats & Level” to save your current build configuration for forum posts or Discord.
This tool is designed for high-precision planning, ensuring you never accidentally level up past your desired combat level bracket.
Key Factors That Affect OSRS Combat Lvl Calculator Results
Several nuances affect how your level is calculated in Old School RuneScape:
- The Melee Bias: Attack and Strength are added together. Increasing either will increase your combat level at the same rate.
- The Magic/Ranged Overlap: Magic and Ranged only affect your level if they are significantly higher than your combined Melee levels. This is why many melee-focused builds can have high magic without leveling up.
- Prayer Floor: Prayer only increases your combat level every two levels (odd levels like 13, 43, 45).
- HP Contribution: Every 4 levels of Hitpoints typically results in exactly 1 combat level, assuming other stats are static.
- Build Specialization: Specializing in one style (e.g., Ranged) allows for a higher “Effective Combat Power” at lower levels.
- Rounding: OSRS always “floors” the final result. A 98.99 combat level is still 98 in-game.
Frequently Asked Questions (FAQ)
What is the max combat level in OSRS?
The maximum level is 126. This requires 99 in all combat-related stats including Prayer.
Does Prayer increase combat level?
Yes, Prayer increases your “Base Level.” Every 2 levels of Prayer provide approximately 0.125 combat levels.
Can I have 99 Magic and stay level 3?
No. Even with 10 HP and 1 Defence, 99 Magic would push you to roughly level 40 combat using the osrs combat lvl calculator logic.
Why did my combat level not go up when I leveled Strength?
OSRS combat levels only increase in whole integers. You likely gained “hidden” decimals that haven’t reached the next whole number yet.
What stats do I need for level 100 combat?
Level 100 is often required for the Pest Control veteran boat. Typical stats are roughly 75-80 in all melee skills with 70 Prayer.
Is Hitpoints included in the calculation?
Yes, Hitpoints is a core component of the “Base” calculation in the osrs combat lvl calculator.
What is a “Combat Bracket”?
A combat level bracket is the range of players you can attack in the Wilderness or PvP worlds.
How do I stay “Ranged-based”?
Keep your Ranged level high enough so that (Ranged * 1.5) is greater than (Attack + Strength). This is easily calculated using our tool.
Related Tools and Internal Resources
- OSRS Combat Level Formula – A deep dive into the raw math behind the game.
- Pking Build Calculator – Optimize your pure or med-level account for maximum damage.
- OSRS Skill Requirements – Check what levels you need for major quests and diaries.
- OSRS Ironman Guide – Progression tips for the self-sufficient game mode.
- Optimal Quest Guide – The most efficient way to gain combat XP through questing.