RS Combat Level Calculator

The ultimate tool for planning your OSRS and RS3 character builds.

Calculate Your Combat Level

Account Build Analysis

Levels to Next Combat Level

Skill	Levels Required for Next Combat

This table estimates the minimum number of levels you need in a single skill to gain your next full combat level.

What is an RS Combat Level Calculator?

An RS combat level calculator is a specialized tool for players of the massively multiplayer online role-playing games RuneScape 3 (RS3) and Old School RuneScape (OSRS). It computes a player’s combat level based on their character’s skill levels. This number is the primary indicator of a character’s overall strength in combat. Our rs combat level calculator allows for precise planning, whether you’re building a specialized “pure” account for player-vs-player (PvP) combat, a balanced main account for high-level bossing, or simply want to understand how your training affects your level. Unlike other in-game stats, the combat level is a composite value derived from a specific, unchanging formula.

RS Combat Level Formula and Explanation

The combat level is not a simple sum of your skills. It’s calculated using a base value derived from your defensive stats, plus an additional value from your strongest offensive style (Melee, Ranged, or Magic). The formulas differ slightly between RS3 and OSRS, mainly due to the inclusion of the Summoning skill in RS3.

RuneScape 3 (RS3) Formula

The RS3 formula includes Summoning, leading to a higher maximum combat level (138).

Combat Level = ⌊(0.25 * (Defence + Constitution + ⌊Prayer/2⌋ + ⌊Summoning/2⌋)) + (0.325 * MAX( (Attack + Strength), (2 * Ranged), (2 * Magic) ))⌋

Old School RuneScape (OSRS) Formula

The OSRS formula is simpler, topping out at a max combat level of 126.

Combat Level = ⌊(0.25 * (Defence + Hitpoints + ⌊Prayer/2⌋)) + (0.325 * MAX( (Attack + Strength), floor(1.5 * Ranged), floor(1.5 * Magic) ))⌋

Using a dedicated osrs combat calculator is crucial for planning PvP builds where every level matters.

Variables Explained

Variable	Meaning	Unit	Typical Range
Attack / Strength	Your melee combat skills. They are always calculated together for combat level purposes.	Level	1 – 99
Defence	Your ability to withstand damage. A core component of the base level.	Level	1 – 99
Ranged / Magic	Your distance combat skills. They are multiplied by a factor in the formula.	Level	1 – 99
Constitution / Hitpoints	Your character’s life force. In OSRS, this is called Hitpoints.	Level	1 – 99 (Starts at 10)
Prayer	Your connection to the gods, allowing for powerful buffs. It contributes half its level to the base calculation.	Level	1 – 99
Summoning	(RS3 Only) Your ability to summon familiars. It contributes half its level to the base calculation.	Level	1 – 99

Practical Examples

Example 1: OSRS Melee “Pure” Build

A “pure” is an account that keeps certain skills (usually Defence) low to maintain a low combat level for an advantage in PvP. Let’s see the combat level for a classic 1-Defence pure.

• Inputs: Attack: 60, Strength: 80, Defence: 1, Ranged: 1, Magic: 1, Hitpoints: 75, Prayer: 13
• Game Version: OSRS
• Calculation:
  • Base = 0.25 * (1 + 75 + floor(13/2)) = 0.25 * (1 + 75 + 6) = 20.5
  • Melee = 0.325 * (60 + 80) = 45.5
  • Ranged = 0.325 * floor(1.5 * 1) = 0.325
  • Magic = 0.325 * floor(1.5 * 1) = 0.325
  • Total = 20.5 + 45.5 = 66
• Result: Combat Level 66. This is a common target for a powerful low-level player killer.

Example 2: High-Level RS3 Main Account

A main account typically trains all skills for access to all game content, including high-level bosses. A good skill training guide can help optimize this process.

• Inputs: Attack: 99, Strength: 99, Defence: 99, Ranged: 99, Magic: 99, Constitution: 99, Prayer: 95, Summoning: 96
• Game Version: RS3
• Calculation:
  • Base = 0.25 * (99 + 99 + floor(95/2) + floor(96/2)) = 0.25 * (99 + 99 + 47 + 48) = 73.25
  • Melee = 0.325 * (99 + 99) = 64.35
  • Ranged = 0.325 * (2 * 99) = 64.35
  • Magic = 0.325 * (2 * 99) = 64.35
  • Total = 73.25 + 64.35 = 137.6
• Result: Combat Level 137. This player is just shy of the maximum combat level of 138.

How to Use This RS Combat Level Calculator

1. Select Your Game: First, choose between ‘RuneScape 3 (RS3)’ and ‘Old School RuneScape (OSRS)’ from the dropdown. This is critical as it changes the formula.
2. Enter Your Levels: Input each of your combat stats into the corresponding fields. The calculator assumes a minimum level of 1 (or 10 for Constitution/Hitpoints).
3. View Real-Time Results: Your combat level is calculated instantly. There is no need for a “submit” button.
4. Analyze the Breakdown: The results section shows you the primary combat level, your dominant combat style, and the intermediate values (Base Level, Melee Portion, etc.) used in the calculation.
5. Plan Your Next Level: Use the “Levels to Next Combat Level” table to see the most efficient way to gain your next combat level. A key part of any melee based combat level strategy.

Key Factors That Affect RS Combat Level

• Defence and Constitution/Hitpoints: These are the cornerstones of your combat level. Every level in these skills provides a guaranteed increase to your base combat points.
• The “Dominant” Style: Only your highest combat style (Melee, Ranged, or Magic) contributes to your final level. This is why a “pure” account can have high strength and low magic without magic affecting the combat level.
• Prayer and Summoning: These skills have a “discounted” effect, as only half of their level is added to the base calculation. This makes them less impactful on your combat level compared to Defence.
• Ranged and Magic Multipliers: In the RS3 and OSRS formulas, Ranged and Magic levels are multiplied (by 2 and 1.5 respectively). This makes individual levels in these skills more impactful than an individual level in Attack or Strength. Understanding this can be a core part of your runescape money making strategy if you focus on bosses weak to these styles.
• Attack and Strength Synergy: These two skills are always added together. This means you get the most efficient melee-based combat level gains by keeping them at a similar level.
• Game Version: The single biggest factor. Selecting RS3 enables the Summoning skill, which can add up to 12 combat levels on its own, fundamentally changing the result of the rs combat level calculator.

Frequently Asked Questions (FAQ)

Why is my combat level a decimal in the calculation?

The underlying combat formula produces fractional results at each step. The game only ever displays the final, rounded-down whole number, but our rs combat level calculator shows the precision to help you see how close you are to the next level.

What is the max combat level in RuneScape?

The maximum combat level is 138 in RuneScape 3 and 126 in Old School RuneScape.

Do non-combat skills affect my combat level?

No. Skills like Fishing, Woodcutting, or Slayer have no impact on your combat level.

Why did my combat level not increase after I leveled up a skill?

Because of the formula’s structure, a single level-up often isn’t enough to raise your overall combat level. It might only increase the fractional value. The “Levels to Next Combat Level” table helps show how many levels are needed for a visible change.

Which skill is best to train to increase my combat level quickly?

It depends on your current stats. If Melee is your dominant style, training Attack or Strength gives a good return. However, due to the multipliers, training Ranged or Magic can often provide faster combat levels if they are close to becoming your dominant style.

How do I create a “pure” or specialized account?

Pures are made by carefully training certain skills (like Attack and Strength) while intentionally not training others (like Defence). Use an osrs combat calculator like this one to simulate level-ups and stay within your desired combat bracket.

Is Summoning included in the OSRS calculation?

No, Summoning is a skill exclusive to RuneScape 3 and is not part of the OSRS combat formula. Our calculator automatically disables the Summoning input when OSRS is selected.

Why does Constitution/Hitpoints start at level 10?

In both versions of RuneScape, players start with 10 Hitpoints/Constitution, not 1. This is a unique aspect of that specific skill.