Prayer is one of the most powerful and essential skills in Old School RuneScape (OSRS). It allows players to use special combat prayers that enhance attack, defense, strength, and protection from enemies. However, Prayer is also one of the most expensive and time-consuming skills to train, especially for players aiming for higher levels like 70 for Piety or 99 for maximum combat effectiveness.
OSRS Prayer Calculator
How to Use the OSRS Prayer Calculator
- Enter Current Prayer Level: Input your current Prayer level.
- Set Target Level: Choose the level you want to achieve (e.g., 70, 92, or 99).
- Select Bone Type: Choose the type of bone you’ll use (e.g., regular bones, big bones, dragon bones, superior dragon bones).
- Select Training Method: Options include burying bones, using a gilded altar, or offering at the Chaos altar.
- Click Calculate: Instantly get the number of bones required and the total XP.
OSRS Prayer Experience Formula
The Prayer experience you gain depends on the bone type and training method.
Prayer XP = Base Bone XP × Multiplier
Where multipliers are:
- Burying: 1× base XP
- Gilded Altar with 2 burners lit: 3.5× base XP
- Chaos Altar: 3.5× base XP with a 50% chance bones are saved
Common Bone XP Values
- Normal bones = 4.5 XP
- Big bones = 15 XP
- Dragon bones = 72 XP
- Superior dragon bones = 150 XP
Examples of Prayer XP Calculations
Example 1 – Dragon Bones at Gilded Altar
Dragon bones base XP = 72
Multiplier = 3.5
XP per bone = 72 × 3.5 = 252 XP
If you need 1,000,000 XP, then:
1,000,000 ÷ 252 = 3,968 dragon bones required
Example 2 – Superior Dragon Bones at Chaos Altar
Base XP = 150
Multiplier = 3.5
XP per bone = 150 × 3.5 = 525 XP
But with 50% chance bones are saved, the effective cost is halved.
So, for 1,000,000 XP:
1,000,000 ÷ 525 = 1,905 bones (on average only ~953 bones consumed).
Why Use the OSRS Prayer Calculator?
- Save Money: Calculate exactly how many bones are needed, avoiding waste.
- Plan Efficiently: Helps set realistic goals for 70, 92, or 99 Prayer.
- Compare Methods: Decide between gilded altar, Chaos altar, or burial.
- Track Progress: Keep a clear overview of your Prayer journey.
- Boost Efficiency: Choose the most cost-effective bone type for your budget.
Tips for Training Prayer in OSRS
- Always use a gilded altar with two burners lit for maximum XP.
- The Chaos altar is cheaper but riskier since it’s in the Wilderness.
- Use superior dragon bones if you want the fastest training.
- For lower levels, big bones or baby dragon bones are more affordable.
- Consider the Grand Exchange price of bones before committing to a method.
20 Frequently Asked Questions (FAQs)
Q1. What is the OSRS Prayer Calculator?
It’s a tool that calculates the number of bones needed to reach your desired Prayer level.
Q2. How does it work?
It multiplies the base XP of bones by training method multipliers and divides by your XP goal.
Q3. What’s the best bone for Prayer training?
Superior dragon bones are the fastest but also the most expensive.
Q4. Is Chaos altar or gilded altar better?
Chaos altar is cheaper (50% bone save chance) but riskier due to PvP. Gilded altar is safer.
Q5. How much XP does a dragon bone give on a gilded altar?
252 XP per bone.
Q6. How much XP does a superior dragon bone give at Chaos altar?
525 XP per bone, with a 50% chance the bone isn’t consumed.
Q7. Can I use the calculator for free-to-play?
Yes, but F2P bones give very low XP compared to members’ bones.
Q8. How do I calculate XP for level 99 Prayer?
The calculator shows exactly how many bones you need from your current level.
Q9. How many dragon bones for 70 Prayer?
Around 1,000–1,200 depending on method used.
Q10. How many bones for 99 Prayer using superior dragon bones?
Around 25,000 bones at gilded altar, less with Chaos altar due to bone saving.
Q11. Can I use the calculator for partial goals (e.g., 92 Prayer)?
Yes, just set your target level.
Q12. Does it include XP lamps or bonus XP?
No, it only calculates based on bones and altars.
Q13. What level is needed for Piety?
You need level 70 Prayer.
Q14. Can I train Prayer by burying bones?
Yes, but it’s much slower and less efficient.
Q15. What is the fastest way to train Prayer?
Superior dragon bones at a gilded altar.
Q16. What is the cheapest way to train Prayer?
Big bones or dragon bones at the Chaos altar.
Q17. Do ashes work with this calculator?
No, this calculator is focused on bones.
Q18. How do I get superior dragon bones?
From killing superior dragons or buying them at the Grand Exchange.
Q19. Why is Prayer so expensive in OSRS?
Because bones, especially dragon bones, are in high demand.
Q20. Is it worth getting 99 Prayer?
Yes, it provides access to all prayers and boosts combat efficiency.
Conclusion
The OSRS Prayer Calculator is an essential tool for anyone serious about training Prayer efficiently in Old School RuneScape. By providing exact bone counts, XP calculations, and comparisons between methods, it saves time, gold, and effort. Whether you’re aiming for 70 Prayer for Piety, 92 for Soul Split-like efficiency, or the ultimate 99, this calculator ensures you plan your journey the smart way.