osrs combat level calculator

Calculate your precise combat level for Old School RuneScape. Perfect for Pures, Mains, and Ironman accounts.

Combat Level Milestones

Build Type	Att/Str	Def	HP	Pray	Range/Mage	Est. Combat
Fresh Account	1/1	1	10	1	1/1	3.40
F2P Pure	40/60	1	60	1	60/60	48.15
Gmaul Pure	50/80	1	75	13	80/1	58.50
Med Level	75/99	70	99	77	99/99	108.95
Maxed Main	99/99	99	99	99	99/99	126.10

*Estimated combat levels are rounded down in-game.

What is the OSRS Combat Level Calculator?

The OSRS Combat Level Calculator is an essential tool for players of Old School RuneScape (OSRS) to determine their character's combat effectiveness. Unlike many other RPGs where leveling is linear, OSRS uses a complex formula that weighs defensive and offensive stats differently. Whether you are building a "Pure" for PvP, a "Skiller," or a "Maxed Main," understanding how each stat point affects your total level is crucial.

Who should use the OSRS Combat Level Calculator? Competitive players use it to stay within specific combat brackets for the Wilderness or Bounty Hunter. Casual players use it to see how many more Strength or Hitpoints levels they need before they hit that next satisfying combat milestone. A common misconception is that all stats contribute equally; in reality, your combat level is heavily dictated by your highest offensive style.

OSRS Combat Level Calculator Formula and Mathematical Explanation

The mathematical foundation of the OSRS Combat Level Calculator relies on two distinct parts: the Base Level and the Offensive Contribution. The final combat level is the sum of these two parts.

The Formula:
Base = 0.25 * (Defence + Hitpoints + floor(Prayer / 2))
Melee = 0.325 * (Attack + Strength)
Ranged = 0.325 * floor(3 * Ranged / 2)
Magic = 0.325 * floor(3 * Magic / 2)
Combat Level = Base + Max(Melee, Ranged, Magic)

Variables Table

Variable	Meaning	Unit	Typical Range
Attack	Accuracy and weapon requirement	Level	1 – 99
Strength	Maximum damage output	Level	1 – 99
Defence	Damage mitigation and armor	Level	1 – 99
Hitpoints	Total health pool	Level	10 – 99
Prayer	Access to buffs and protections	Level	1 – 99
Ranged	Distance combat effectiveness	Level	1 – 99
Magic	Spellcasting and magic defense	Level	1 – 99

Practical Examples (Real-World Use Cases)

Example 1: The Standard Pure

Imagine a player with 60 Attack, 80 Strength, 1 Defence, 75 Hitpoints, 1 Prayer, 1 Ranged, and 1 Magic. Using the OSRS Combat Level Calculator:

• Base: 0.25 * (1 + 75 + 0) = 19.0
• Melee: 0.325 * (60 + 80) = 45.5
• Ranged/Magic: ~0.48
• Total: 19.0 + 45.5 = 64.5 (In-game level 64)

Example 2: The Balanced Main

A player with 70 in all stats. The OSRS Combat Level Calculator shows:

• Base: 0.25 * (70 + 70 + 35) = 43.75
• Melee: 0.325 * (70 + 70) = 45.5
• Total: 43.75 + 45.5 = 89.25 (In-game level 89)

How to Use This OSRS Combat Level Calculator

Using our OSRS Combat Level Calculator is straightforward and designed for real-time feedback:

1. Enter Stats: Input your current levels for all seven combat-related skills.
2. Observe Real-Time Updates: The calculator updates the primary combat level and the style contributions as you type.
3. Check the Chart: Look at the "Combat Style Contribution" chart to see if you are "Melee-based," "Range-based," or "Magic-based."
4. Analyze the Base: Review the intermediate results to see how much your Defence, HP, and Prayer are contributing to your level.
5. Copy and Share: Use the "Copy Results" button to save your build details for forum posts or Discord.

Key Factors That Affect OSRS Combat Level Results

Several nuances influence the final output of the OSRS Combat Level Calculator:

• The 1/4 Rule: Every 4 levels in Defence or Hitpoints will always increase your combat level by exactly 1, regardless of your offensive stats.
• Prayer's Oddity: Because the formula uses floor(Prayer / 2), only every even level of Prayer (2, 4, 6…) contributes to your combat level.
• Offensive Dominance: Your combat level only takes the highest of your Melee, Ranged, or Magic contributions. This allows "Ranged Pures" to have high Magic levels without increasing their combat level, as long as the Magic contribution doesn't exceed the Ranged one.
• The 1.5x Multiplier: For Ranged and Magic, the formula effectively compares (Attack + Strength) against 1.5 * Ranged or 1.5 * Magic.
• Rounding Down: While the OSRS Combat Level Calculator shows decimals, the game always rounds your level down to the nearest whole number.
• HP Starting Point: All characters start with 10 Hitpoints, which means the minimum combat level is 3, not 1.

Frequently Asked Questions (FAQ)

What is the maximum combat level in OSRS?

The maximum combat level is 126.1, which displays as 126 in-game. This is achieved with 99 in all combat stats.

Does Prayer always increase my combat level?

No. Because of the floor(Prayer / 2) mechanic, only even-numbered levels (like 13 to 14) will potentially trigger a combat level increase.

Can I level Magic without increasing my combat?

Yes, if your Melee or Ranged contribution is already higher than what your Magic contribution would be. This is common for "Combat Pures."

Why does the OSRS Combat Level Calculator show decimals?

The decimals show you how close you are to the next level. For example, 70.95 means you are very close to level 71.

Is Summoning included in this calculator?

No. Summoning is a skill in RuneScape 3. This OSRS Combat Level Calculator is specifically for Old School RuneScape.

What is a "Combat Class"?

It refers to which offensive style (Melee, Ranged, or Magic) is currently providing the highest contribution to your combat level.

How many Strength levels equal one combat level?

Roughly 3.07 Strength levels equal one combat level, assuming Strength and Attack are being leveled together and are the dominant style.

Does the calculator account for temporary boosts?

No, the OSRS Combat Level Calculator uses your permanent base stats. Potions and prayers do not change your actual combat level.