OSRS Prayer Calculator – Bones, XP & Cost Tracker
OSRS Prayer Calculator
Trying to work out whether Prayer level 70, 77, or 99 is worth the GP can get confusing fast. Estimate XP, materials, and cost instantly.
Results
Target Reached!
Your target is lower than or equal to your current XP.
XP Needed
13,034,431Materials
51,724 Dragon bonesTotal Cost
129,310,000 GPGP / XP
9.92Time
52.1 hrsInventories
1,848 tripsWilderness Risk: The Chaos Altar is in multi-combat wilderness. You may lose bones to PKers. Bring noted bones and unnote at Phials for better rates.
Cheapest Option
Chaos Altar cuts material costs by 50%. It's universally the cheapest fast method for mains.Fastest Option
Offering Spells or Superior Dragon Bones at an altar can exceed 500k XP/hr.Balanced Approach
Dragon Bones at the Chaos Altar offers an excellent mix of speed and affordability.
How to Use This OSRS Prayer Calculator
Training Prayer in Old School RuneScape can be expensive, but planning ahead saves both time and GP. Follow these simple steps:
- Enter your current Prayer level or XP.
- Choose your target level or XP.
- Pick your account type and training method.
- Adjust item price or XP/hour if needed.
- Compare the cost, time, and material results.
What This Prayer Calculator Shows You
This tool helps you make smart decisions by instantly showing exactly what you need to reach your goal. It displays the total XP needed, bones or materials required, overall GP cost, GP per XP, estimated time, inventories, and smart method recommendations based on your selections.
Best Prayer Training Methods in OSRS
- Burying bones: The simplest method, mostly used by Free-to-play players or early game Ironmen.
- Gilded altar: A safe, player-owned house method that grants 350% XP when two incense burners are lit.
- Chaos altar: Located deep in the Wilderness, this altar offers the same 350% XP as a Gilded altar, but with a 50% chance to not consume the bone. This effectively doubles your Prayer XP per bone, making it extremely cost-effective.
- Ectofuntus: Grants 400% XP but requires significant preparation (grinding bones and collecting slime).
- Ensouled heads: A cheaper alternative that requires Arceuus spellbook magic and combat.
- Offering spells: Demonic and Sinister Offering spells allow you to train Prayer efficiently during Slayer tasks or while bankstanding.
- Blessed bone shards: A newer method used at the Libation Bowl in Varlamore, offering high XP rates with either blessed or sunfire wines.
Method Comparison
| Method | Best for | XP Multiplier | Est. XP/hr | Cost Level | Risk Level | Notes |
|---|---|---|---|---|---|---|
| Chaos Altar | Mains / Ironmen | 350% (50% save) | 350k+ | Low | High | Bones are saved 50% of the time, halving costs. PKer risk. |
| Gilded Altar | Mains / Ironmen | 350% | 250k+ | High | None | Requires 2 lit burners. Very safe and reliable. |
| Ensouled Heads | Budget Mains | Flat XP | 150k+ | Low | None | Requires Arceuus magic and combat gear. Very cheap. |
| Offering Spells | Rich Mains | 300% | 450k+ | Very High | None | Offers 3 bones/ashes per cast. Extremely fast, very expensive. |
| Ectofuntus | Early Ironmen | 400% | 100k | Medium | None | Tedious prep time but highest raw XP per bone. |
| Blessed Bone Shards | All Accounts | 500% - 600% | 600k+ | Medium | None | Requires Blessed/Sunfire wines at Varlamore Libation Bowl. |
| Burying Bones | F2P / Brand New | 100% | 30k | Very High | None | Only recommended for F2P or the first few levels. |
Cheapest vs Fastest Prayer Training
Choosing a method usually comes down to your budget versus your available time. The Chaos altar is universally the cheapest method for main accounts because it halves the number of bones you need to buy. However, it carries the risk of player killers (PKers). For the fastest training without risk, using Superior dragon bones on a Gilded altar or using Offering spells yields massive XP rates but costs significantly more GP per XP. A balanced approach is often using Dragon bones or Wyrm bones at the Chaos altar.
OSRS Prayer Level Milestones
| Level | Unlock / Goal |
|---|---|
| 43 | Protect from Melee |
| 70 | Piety |
| 74 | Rigour |
| 77 | Augury |
| 99 | Max cape goal |
Calculator Assumptions
- Gilded altar: Assumes both incense burners are lit.
- Chaos altar: Assumes the 50% bone saving effect is active (effectively doubling the base materials). Actual results may vary due to Wilderness risks.
- Ectofuntus: Does not account for the time spent gathering buckets of slime or grinding bones.
- Offering spells: Base cost estimates include the approximate cost of runes (e.g., Wrath runes).
- Manual prices: Due to Grand Exchange fluctuations, you should update the item price manually for the most accurate current estimate.
- XP/hour: Rates are estimates based on average player efficiency. You can edit this value to match your actual speed.
FAQs
What is the fastest way to train Prayer in OSRS?
The fastest way is using Superior dragon bones at a Gilded altar or Chaos altar, or using Demonic/Sinister Offering spells. These methods can exceed 500k-1M XP per hour depending on your click intensity.
What is the cheapest way to train Prayer in OSRS?
The Chaos altar in the Wilderness is the cheapest method because it gives a 50% chance to not consume the bone you offer. Ensouled heads are also very cheap but require combat.
How much does 99 Prayer cost?
The cost to 99 Prayer varies wildly. Using Dragon bones at the Chaos altar typically costs between 40m to 60m GP, while safer and faster methods can cost well over 100m GP. Use the calculator above to see exact current costs.
Is the Chaos altar worth using?
Yes, it effectively cuts your GP cost in half compared to a Gilded altar. Even if you die occasionally to PKers, the amount of GP saved on bones heavily outweighs the losses.
Should I use Gilded altar or Ectofuntus?
Gilded altar is heavily preferred because it is significantly faster and less tedious. The Ectofuntus provides slightly more XP per bone (400% vs 350%) but the preparation time usually makes it inefficient for mains.
Can Ironman players use this Prayer calculator?
Yes! Select the Ironman account type. You can set item prices to 0 if you gather them yourself, and the calculator will simply tell you how many materials and how much time you need.
Why does my cost estimate differ from the Grand Exchange price?
Prices in OSRS change constantly. If the default price in the calculator is outdated, simply click the 'Item Price' field and type the current GE value.
What Prayer level should I aim for first?
If you are rushing a combat unlock, level 43 (Protect from Melee) or level 70 (Piety) usually matters more than calculating all the way to 99 straight away.