RuneScape Combat Calculator

Instantly calculate your OSRS or RuneScape 3 combat level based on your character’s stats. This tool uses the official game formulas to provide an accurate calculation for planning your account build.

Your Combat Level

3

Combat Level = Base + Max(Melee, Ranged, Magic)

Chart showing the weight of each combat style towards your level.

What is a RuneScape Combat Calculator?

A RuneScape combat calculator is an essential tool for players of both RuneScape 3 (RS3) and Old School RuneScape (OSRS). It determines your character’s combat level based on their specific skill levels. Your combat level is one of the most important stats in the game, influencing everything from which monsters you can fight, which quests you can undertake, and how you match up against other players in Player vs. Player (PvP) combat. By using a runescape combat calculator, players can strategically plan their training to achieve specific account builds, such as a “pure” with low defence or a “zerker” with a specific defence level for PvP brackets.

RuneScape Combat Formula and Explanation

The combat level is not a simple average of your stats. Instead, it’s calculated using a weighted formula that prioritizes your primary attack style. The game first calculates a “base” level from your defensive stats and then adds the highest value from your three possible attack styles: Melee, Ranged, or Magic.

The formulas differ slightly between RuneScape 3 and OSRS, mainly due to the inclusion of the Summoning skill in RS3.

• OSRS Formula: `Combat Level = ⌊(Base + Max(Melee, Ranged, Magic))⌋`
• RuneScape 3 Formula: `Combat Level = ⌊(Base + Max(Melee, Ranged, Magic))⌋`

Variable Explanations for Combat Calculation

Variable	Meaning	Unit	Typical Range
Base (OSRS)	`0.25 * (Defence + Hitpoints + ⌊Prayer / 2⌋)`	Level	1 – 99
Base (RS3)	`0.25 * (Defence + Hitpoints + ⌊Prayer / 2⌋ + ⌊Summoning / 2⌋)`	Level	1 – 99 (120 possible)
Melee	`0.325 * (Attack + Strength)`	Level	1 – 99 (120 possible)
Ranged	`0.325 * ⌊Ranged * 1.5⌋`	Level	1 – 99 (120 possible)
Magic	`0.325 * ⌊Magic * 1.5⌋`	Level	1 – 99 (120 possible)

Practical Examples

Example 1: Maxed Melee OSRS Account

A player in OSRS wants to know their combat level with maxed melee stats.

• Inputs: Attack 99, Strength 99, Defence 99, Hitpoints 99, Prayer 99
• Calculation:
  • Base = 0.25 * (99 + 99 + ⌊99/2⌋) = 0.25 * (198 + 49) = 61.75
  • Melee = 0.325 * (99 + 99) = 64.35
  • Ranged/Magic (assume 1) = ~0.33
  • Total = 61.75 + 64.35 = 126.1
• Result: Combat Level 126. This is the maximum combat level in Old School RuneScape.

Example 2: RuneScape 3 Player with Summoning

A mid-level RS3 player has been training various skills and wants to check their current combat level.

• Inputs: Attack 70, Strength 75, Defence 70, Hitpoints 72, Ranged 60, Magic 65, Prayer 55, Summoning 68
• Calculation:
  • Base = 0.25 * (70 + 72 + ⌊55/2⌋ + ⌊68/2⌋) = 0.25 * (142 + 27 + 34) = 50.75
  • Melee = 0.325 * (70 + 75) = 47.125
  • Ranged = 0.325 * ⌊60 * 1.5⌋ = 29.25
  • Magic = 0.325 * ⌊65 * 1.5⌋ = 31.525
  • Total = 50.75 + 47.125 = 97.875
• Result: Combat Level 97. You can see our OSRS Max Hit Calculator to understand how these stats translate to damage.

How to Use This RuneScape Combat Calculator

1. Select Game Version: First, choose between ‘RuneScape 3’ and ‘Old School (OSRS)’ from the dropdown menu. This is crucial as it affects whether the Summoning skill is included in the calculation.
2. Enter Your Levels: Input your current or desired levels for each combat skill (Attack, Strength, Defence, etc.). The calculator starts with default values, so be sure to replace them with your own.
3. View Real-Time Results: The calculator updates automatically as you type. Your final combat level is displayed prominently at the top of the results section.
4. Analyze Intermediate Values: Below the main result, you can see the breakdown of your Base Level and the contribution from Melee, Ranged, and Magic. This helps you understand which style is currently determining your combat level.
5. Check the Chart: The bar chart provides a visual representation of your combat style contributions, making it easy to see which style is dominant.
6. Reset or Copy: Use the ‘Reset’ button to return all fields to their default state. Use the ‘Copy Results’ button to quickly save and share your stats.

Key Factors That Affect RuneScape Combat Level

• Defence and Hitpoints: These two skills form the foundation of your combat level. Every level gained in either provides a consistent and significant increase to your Base level.
• Primary Attack Style: Because the formula takes the *maximum* of Melee, Ranged, or Magic, focusing on one style will increase your combat level faster than spreading your training evenly.
• Attack and Strength (Melee): These two skills are combined for the melee calculation, meaning a single level in either has slightly less impact than a single level in Ranged or Magic, but training them together provides a powerful boost.
• Prayer: Prayer has a smaller impact on your combat level than other skills because its level is halved in the formula. This allows players to unlock powerful overhead prayers without a drastic increase in their combat level, a key strategy for many PvP builds.
• Summoning (RuneScape 3 Only): Similar to Prayer, Summoning’s impact is dampened because its level is halved. However, it is a factor that distinguishes the RS3 and OSRS combat levels.
• Account Builds (‘Pures’): Players intentionally keep certain skills, like Defence or Prayer, at a low level to minimize their combat level while maximizing their damage output. Using a runescape combat calculator is essential for planning these builds. It’s a different strategy from just using a Skill Calculator for efficiency.

Frequently Asked Questions (FAQ)

What is the maximum combat level?

In OSRS, the maximum combat level is 126. In RuneScape 3, due to Summoning and higher skill caps, the maximum is 138 (or higher with certain temporary boosts).

Why is my combat level a fraction in the calculator?

The game always rounds the final combat calculation *down* to the nearest whole number. This calculator shows the decimal to help you see how close you are to leveling up.

Does Summoning affect my combat level in OSRS?

No, Summoning is a skill exclusive to RuneScape 3 and does not exist or affect combat in Old School RuneScape.

How do I create a ‘pure’ account?

A pure is an account that focuses on high offensive stats (like Strength) while keeping defensive stats (like Defence) at level 1. This results in a lower combat level with high damage potential. Use this calculator to experiment with stat combinations for your desired PvP bracket. A Quest Checker can also help avoid quests that give unwanted Defence XP.

Is Attack or Strength more important for leveling up combat?

Both contribute equally to the Melee portion of the formula. However, they affect your damage differently in-game. Strength typically increases your maximum hit, while Attack increases your accuracy. For leveling combat, raising both is effective.

Why didn’t my combat level go up after gaining a skill level?

This often happens when the skill you leveled is not your highest attack style. For example, if your Melee value is much higher than your Ranged value, you may need to gain several Ranged levels before it overtakes Melee and affects your final combat level.

Does this calculator work for Ironmen?

Yes, the combat level formula is the same for all account types, including Ironman, Hardcore Ironman, and Ultimate Ironman.

How does training method affect my combat level?

Some training methods, like using a cannon for ranged or splashing magic spells, do not provide Hitpoints experience. This can lead to an imbalanced stat distribution and a different combat level than if you had trained normally. Some calculators have options for this, like our OSRS Max Hit Calculator might.

Related Tools and Internal Resources

Enhance your RuneScape experience with these other helpful tools:

• OSRS Max Hit Calculator: Once you know your combat stats, find out your maximum potential damage with any gear setup.
• Skill Calculator: Plan the most efficient path to level up any of your non-combat skills.
• Quest Checker: Track your quest progress and identify which quests to complete for valuable rewards and experience.