OSRS Splashing Calculator

Optimize your RuneScape Magic experience.

Splashing Calculator Inputs

Splashing Efficiency Chart

Spell Data Table

Key Spell Information

Spell	Magic XP per Cast	Base Rune Cost (GP)	Level Required

What is OSRS Splashing?

OSRS Splashing refers to a specific training method in Old School RuneScape where players cast magic spells on an NPC that is unable to hit them back. This is typically achieved by standing at a specific distance from the NPC or by using certain mechanics. The primary advantage of splashing is that it allows players to gain Magic experience without taking any damage (or minimal, if a recoil ring is used), making it a very AFK (Away From Keyboard) and safe method to level up your Magic skill. It’s a popular choice for players looking to passively train their Magic level while engaging in other activities or taking breaks.

Who should use it:

• Players who want to train Magic with minimal attention.
• Players who are saving up for higher Magic levels and want to do it passively.
• Players who have a sufficient supply of runes and/or the budget for high-cost spells.
• Players who have completed quests or achieved certain stats to unlock the necessary spells.

Common Misconceptions:

• “Splashing is the fastest way to train Magic.” While it’s very AFK, active training methods like bursting or barraging can yield significantly more XP per hour if done efficiently and with high stats. Splashing prioritizes AFK-friendliness over raw speed.
• “You get no damage while splashing.” This is only true if you don’t use a Ring of Recoil. With a Ring of Recoil, you will take damage equal to the NPC’s attack *if* the NPC hits you, which it will normally fail to do unless certain conditions are met. The point of splashing is that the NPC *effectively* misses, but the recoil ring still triggers.
• “Splashing requires expensive gear.” Gear is generally not a major factor in splashing effectiveness, beyond potentially increasing Magic accuracy if you weren’t splashing (which is not the goal here). Rune costs are the primary expense.

OSRS Splashing Formula and Mathematical Explanation

The core of the OSRS Splashing Calculator lies in calculating the experience and cost per hour. This method relies on consistent spell casts and understanding the overheads involved. The primary calculation focuses on how many spells can be cast per hour and the associated costs.

Experience Calculation

The experience gained is straightforward: it’s the experience granted per cast of the chosen spell multiplied by the number of casts per hour. Since splashing involves NPCs that cannot hit you, you will always land your spell (assuming you have the spell unlocked and the Magic level). The number of casts per hour is limited by the game tick system (1 tick = 0.6 seconds). Without gear that increases attack speed, a player can cast approximately 100 spells per minute, or 6000 spells per hour.

Experience Per Hour (XP/hr) = Magic XP per Cast * Casts per Hour

Cost Calculation

The cost per hour involves several components:

1. Rune Cost: The cost of runes for each spell cast multiplied by the casts per hour.
2. Ring of Recoil Cost: If a Ring of Recoil is used, its cost is factored in. Each ring has a limited number of charges (typically 30). The cost per hour is (Cost per Ring / Charges per Ring) * Rings used per hour. Since splashing is designed so NPCs ‘miss’, you take damage only when the NPC attempts to hit. The Ring of Recoil damage is effectively averaged over its charges. For splashing, we assume the ring breaks after X casts, where X is the number of casts before the ring’s durability runs out. A more practical approach is to calculate the number of Rings of Recoil consumed per hour. If a ring has 30 charges and you cast 6000 spells, you’d use 6000/30 = 200 rings if *every* NPC attempt triggered the recoil. In practice, for pure splashing, you’d need to replace rings based on *your* damage taken. For simplicity, we calculate cost based on damage taken and ring charges.
3. Net Cost/Profit: This is the total cost per hour (Runes + Recoil) subtracted from any potential income (e.g., from loot drops if applicable, though splashing typically doesn’t involve profitable drops). For pure splashing, it’s simply the expense.

Damage Taken Calculation

When splashing, the NPC attempts to hit you. If you are wearing a Ring of Recoil and the NPC *would* have hit you (even though it misses due to mechanics), the Ring of Recoil activates, dealing damage back to the NPC and consuming a charge. This means you *will* take damage that the Ring of Recoil absorbs. The damage taken per hour is therefore a factor of how many spells are cast, as each cast represents an opportunity for the NPC to ‘attack’. With 6000 casts per hour, and assuming each cast effectively triggers a potential NPC ‘hit’ that consumes a recoil charge and deals damage to you, you will take approximately 6000 * (average NPC damage) if the NPC *could* hit you. However, the damage taken is usually low and predictable for common splashing NPCs.

Variables Table

Variables Used in Calculation

Variable	Meaning	Unit	Typical Range
Magic XP per Cast	Experience gained for successfully casting a spell.	XP	Varies (e.g., Fire Strike: 32 XP)
Casts per Hour	Maximum spells cast within one hour.	Casts/hr	~6000 (standard auto-cast)
Rune Cost per Cast	Total Grand Exchange price of runes required for one spell cast.	GP	Variable (e.g., Fire Strike: ~5-15 GP)
Recoil Ring Cost	Grand Exchange price of one Ring of Recoil.	GP	~3,000 – 5,000 GP
Recoil Ring Charges	Number of spells cast before a Ring of Recoil breaks.	Charges	30
Amulet of Magic Bonus	Magic attack bonus from equipping an Amulet of Magic.	Bonus	+15 (standard)
Damage Taken per Cast	Average HP damage taken per spell cast when using a recoil ring.	HP	~1-5 (depends on NPC)

Practical Examples (Real-World Use Cases)

Example 1: Standard Splashing with Fire Strike

A player wants to AFK train Magic using the basic Fire Strike spell. They have 99 Magic and decide to use a Ring of Recoil for added benefit (though primarily for defence XP if an NPC *could* hit them, and to trigger the recoil effect for charge usage). They check the Grand Exchange and find:

• Fire Strike Rune Cost: 10 GP per cast (Air + Fire runes)
• Ring of Recoil Cost: 4,000 GP per ring
• Ring of Recoil Charges: 30
• Magic XP per Fire Strike: 32 XP
• Approximate Damage Taken per cast (triggering recoil): 2 HP

Inputs for Calculator:

• Spell: Fire Strike
• Magic Level: 99
• Recoil Ring Used: Yes
• Recoil Ring Cost: 4000
• Amulet of Magic Equipped: No
• Spell Rune Cost: 10
• Recoil Ring Charges: 30

Calculator Output (Estimated):

• Magic XP/hr: 192,000 XP/hr (32 XP/cast * 6000 casts/hr)
• Cost Per Hour (Runes): 60,000 GP/hr (10 GP/cast * 6000 casts/hr)
• Cost Per Hour (Recoil): 80,000 GP/hr ((4000 GP / 30 charges) * 200 rings/hr) [200 rings/hr = 6000 casts / 30 charges per ring]
• Total Cost Per Hour: 140,000 GP/hr
• Gold Per Hour (GP/hr): -140,000 GP/hr (This is a cost, hence negative)
• Rings of Recoil Used Per Hour: 200 rings/hr
• Total Damage Taken Per Hour: 12,000 HP (6000 casts/hr * 2 HP/cast)

Interpretation: This method is extremely AFK but costs a significant amount of GP per hour. It’s suitable for players who prioritize ease of training over cost-effectiveness.

Example 2: High-Level Splashing with Ice Barrage (on a trainable dummy/NPC)

A player with high Magic level wants to maximize Magic XP using Ice Barrage, assuming they can find a safe-to-splash-on target (like a magic training dummy that doesn’t retaliate). This is less common for pure splashing and more for dummies, but the principle applies.

• Ice Barrage Rune Cost: ~660 GP per cast (3 Laws, 2 Astrals, 1 Fire, 1 Water)
• Ring of Recoil Cost: 4,000 GP per ring
• Ring of Recoil Charges: 30
• Magic XP per Ice Barrage: 46 XP
• Approximate Damage Taken per cast (triggering recoil): 4 HP

Inputs for Calculator:

• Spell: Ice Barrage
• Magic Level: 99
• Recoil Ring Used: Yes
• Recoil Ring Cost: 4000
• Amulet of Magic Equipped: Yes
• Spell Rune Cost: 660
• Recoil Ring Charges: 30

Calculator Output (Estimated):

• Magic XP/hr: 276,000 XP/hr (46 XP/cast * 6000 casts/hr)
• Cost Per Hour (Runes): 3,960,000 GP/hr (660 GP/cast * 6000 casts/hr)
• Cost Per Hour (Recoil): 80,000 GP/hr ((4000 GP / 30 charges) * 200 rings/hr)
• Total Cost Per Hour: 4,040,000 GP/hr
• Gold Per Hour (GP/hr): -4,040,000 GP/hr
• Rings of Recoil Used Per Hour: 200 rings/hr
• Total Damage Taken Per Hour: 24,000 HP (6000 casts/hr * 4 HP/cast)

Interpretation: Ice Barrage offers higher XP per cast but is astronomically expensive. This method is generally only considered by players with immense wealth or who are using it for defensive training alongside magic, where the cost is less of a concern than the high XP gain.

How to Use This OSRS Splashing Calculator

Our OSRS Splashing Calculator is designed to be simple and intuitive, helping you quickly determine the efficiency and cost of your Magic training via splashing. Follow these steps:

1. Select Your Spell: In the “Spell Name” dropdown, choose the magic spell you intend to use for splashing. The calculator automatically adjusts XP per cast based on your selection.
2. Enter Your Magic Level: Input your current Magic level in the “Magic Level” field. While level doesn’t affect XP rates for splashing itself, it determines which spells you can cast.
3. Indicate Recoil Ring Usage: Choose “Yes” or “No” for “Recoil Ring Used?”. If “Yes”, the calculator will factor in the cost of Rings of Recoil.
4. Input Recoil Ring Cost: If you selected “Yes” for recoil rings, enter the current Grand Exchange price for one Ring of Recoil in the “Recoil Ring Cost” field. This is crucial for accurate cost calculations. Enter 0 if not using rings.
5. Equip Amulet of Magic: Select “Yes” or “No” for “Amulet of Magic Equipped?”. This doesn’t change the XP rate but is noted for completeness.
6. Enter Rune Cost: Input the total cost in GP for the runes required to cast your chosen spell once. You can find this information on the Grand Exchange.
7. Enter Recoil Ring Charges: Input the standard number of charges a Ring of Recoil has (typically 30).
8. Calculate: Click the “Calculate” button. The results will update instantly.

How to Read Results:

• Optimal Splashing XP/hr: Your primary target – the maximum Magic experience you can expect per hour.
• Magic XP per Hour: The calculated experience gain.
• Gold Per Hour (GP/hr): This indicates your profit or loss. A negative number means you are spending money.
• Rings of Recoil Used Per Hour: How many Rings of Recoil you’ll consume in an hour.
• Total Cost Per Hour: The combined cost of runes and recoil rings per hour.
• Total Damage Taken Per Hour: The approximate HP you will lose per hour, which you’ll need to heal from (or use prayer/food).

Decision-Making Guidance: Compare the GP/hr (or cost) and XP/hr figures. If your goal is pure AFK training and you have the budget, higher XP/hr methods are preferable. If you’re on a tighter budget, consider cheaper spells or reducing reliance on costly items like recoil rings, though this might reduce AFK potential.

Key Factors That Affect OSRS Splashing Results

Several factors influence the effectiveness and cost of your OSRS splashing training. Understanding these helps optimize your method:

1. Spell Choice: Different spells offer varying Magic XP per cast. Higher-level spells generally provide more XP but require higher Magic levels and more expensive runes. The spell data table and chart help visualize this trade-off.
2. Rune Costs: The fluctuating prices of runes on the Grand Exchange significantly impact your Gold Per Hour (GP/hr). A spell that costs 50 GP per cast might be profitable, while one costing 500 GP will result in a substantial loss. Always check current GE prices.
3. Ring of Recoil Usage: Using Rings of Recoil adds a consistent cost per hour based on their GE price and the number of charges. However, it allows you to take damage (which you must heal) and effectively receive defensive XP if that’s a secondary goal. Without recoil, you take no damage but don’t benefit from the ring’s mechanics.
4. Charges per Ring: The number of charges a Ring of Recoil provides (30) dictates how frequently you need to replace them. A lower charge count means higher replacement frequency and potentially higher effective cost per hour if you consider time spent replacing them.
5. Magic Level: While not directly affecting XP/hr for a chosen spell (as the NPC always misses), your Magic level is a prerequisite for casting certain spells. Higher levels unlock spells with higher base XP.
6. NPC Availability and Type: Although splashing is designed so NPCs cannot hit you, the *type* of NPC can influence the damage you take if you’re using a Ring of Recoil. Some NPCs hit harder than others, meaning the Ring of Recoil might break faster or deal more damage back to the NPC. However, for pure splashing, the goal is an NPC that *never* hits you.
7. Amulet of Magic: While not directly impacting the *success* of splashing (as accuracy isn’t the issue), equipping an Amulet of Magic provides a Magic attack bonus. This is more relevant for active training but is included for completeness. Its primary benefit in this context is its Magic damage bonus if it has one, though for standard splashing, this is negligible.

Frequently Asked Questions (FAQ)

What is the best spell for splashing in OSRS?

The “best” spell depends on your goals. For maximum AFK Magic XP, higher-level spells like Ice Barrage or Blood Barrage offer more XP per cast, but are extremely expensive. For budget-friendly splashing, low-level spells like Fire Strike or Weaken are more cost-effective, providing slower but cheaper XP.

Do I need a Ring of Recoil for splashing?

No, a Ring of Recoil is not strictly necessary for gaining Magic XP while splashing. The core mechanic of splashing is that the NPC misses, preventing damage. However, a Ring of Recoil will take damage back to the NPC if it *attempts* to hit you, consuming charges and requiring you to heal. Some players use it for passive defensive XP.

Can I splash on any NPC?

No, you must splash on NPCs that are unable to hit you. This typically involves standing at a specific distance (e.g., 2-3 tiles away) or using NPCs that are inherently passive or have unique mechanics. Many players use specific low-level monsters in less populated areas or training dummies.

Is splashing profitable?

Generally, no. Splashing is a method to train Magic experience, and it almost always results in a net loss of gold due to the cost of runes and, optionally, Rings of Recoil. The goal is to minimize this loss per XP gained.

How much Magic XP per hour can I get from splashing?

With standard auto-casting (6000 casts per hour), you can achieve XP rates ranging from around 192,000 XP/hr (Fire Strike) up to potentially over 300,000 XP/hr with high-level AOE spells like Ice Barrage, assuming you can cast them.

What gear should I wear for splashing?

For pure splashing, gear is minimal. You’ll want the highest Magic attack bonus amulet you can afford (like an Amulet of Fury or Amulet of Glory if not using a specific magic-focused one) and potentially Magic boosting robes if they don’t increase your defensive capabilities, which is irrelevant for splashing. Often, players wear minimal gear to save on costs or to maximize AFK time.

How many runes does it cost to get from level 1 to 99 Magic via splashing?

This varies wildly depending on the spell used. Splashing with the cheapest spells like Fire Strike can cost hundreds of millions of GP. Using more efficient but costly spells like Ice Burst/Barrage can cost well over a billion GP to reach level 99.

Does wearing an Amulet of Magic increase XP rates?

No, an Amulet of Magic does not increase the Magic XP gained per cast when splashing. The XP rate is determined by the spell itself and the number of casts per hour. The amulet primarily provides Magic attack bonus, which is irrelevant when the NPC cannot hit you back.

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