Calculate Your OSRS Prayer Goals
Calculation Results
Formula Breakdown: The calculator first determines the total XP needed between your current and target levels. This is then divided by the effective XP per bone (base bone XP multiplied by the chosen altar's bonus) to find the total bones. Finally, total bones are multiplied by the price per bone to get the estimated GP cost.
Prayer XP Progression Chart
This chart visualizes the cumulative XP required to reach each Prayer level, highlighting the exponential increase.
OSRS Prayer XP Table
| Level | XP to Next Level | Total XP |
|---|
This table details the experience points needed for each Prayer level and the cumulative total XP to reach that level.
What is an OSRS Prayer Calculator?
An OSRS Prayer Calculator is an essential tool for Old School RuneScape players looking to efficiently plan their Prayer training. It allows you to input your current and desired Prayer levels, select your preferred bone type, and choose your training method (e.g., Gilded Altar, Chaos Altar, Ectofuntus, or simply burying bones). The calculator then provides critical outputs such as the total experience (XP) required, the exact number of bones you'll need, and the estimated Grand Exchange (GE) cost in Gold Pieces (GP).
This tool is invaluable for anyone from new players aiming for their first quest requirements to seasoned veterans pushing for level 99 Prayer. It helps in budgeting, resource gathering, and understanding the scope of the training ahead. Without an OSRS XP calculator like this, players often rely on rough estimates, leading to overspending or under-preparation.
Common misunderstandings often revolve around the varying XP multipliers from different altars. For instance, many players confuse the 3.5x bonus of the Gilded Altar with a 4x bonus, leading to slight miscalculations in bones needed. Our calculator accounts for these precise multipliers, ensuring accuracy.
OSRS Prayer Calculator Formula and Explanation
The core of the OSRS Prayer Calculator relies on a few straightforward formulas that combine OSRS's fixed XP rates with player-selected variables:
XP Required = Total XP (Target Level) - Total XP (Current Level)
Effective XP per Bone = Base XP per Bone × Altar Multiplier
Bones Needed = CEILING(XP Required / Effective XP per Bone)
Total Cost = Bones Needed × Price per Bone (GP)
Let's break down the variables:
| Variable | Meaning | Unit | Typical Range |
|---|---|---|---|
| Current Prayer Level | Your starting Prayer skill level. | Levels | 1-99 |
| Target Prayer Level | The desired Prayer skill level. | Levels | 1-99 |
| Base XP per Bone | The fixed experience granted by a specific bone type (e.g., Dragon Bones give 72 XP). | Experience Points (XP) | 4.5 - 150 |
| Altar Multiplier | The bonus XP multiplier applied by different training methods (e.g., Gilded Altar gives 3.5x). | Unitless Ratio | 1x - 4x |
| Price per Bone | The current Grand Exchange market value of a single bone. | Grand Exchange Price (GP) | 1 GP - 50,000+ GP |
| XP Required | The total experience points needed to go from your current to target level. | Experience Points (XP) | 0 - 13,034,431 XP |
| Bones Needed | The total number of specific bones required for training. | Bones | 1 - 3,000,000+ bones |
| Total Cost | The estimated total Grand Exchange cost for all required bones. | Grand Exchange Price (GP) | 0 GP - Billions of GP |
The CEILING function is used for "Bones Needed" to ensure you always round up to the nearest whole bone, as you cannot use a fraction of a bone.
Practical OSRS Prayer Training Examples
Example 1: Level 70 to 77 for Piety (Gilded Altar)
Let's say you want to reach 77 Prayer for the Piety prayer, starting from level 70, using Dragon Bones at a Gilded Altar.
- Inputs:
- Current Prayer Level: 70
- Target Prayer Level: 77
- Bone Type: Dragon Bones (Base XP: 72)
- Altar/Method: Gilded Altar (Multiplier: 3.5x)
- Price per Bone: 2,000 GP
- Results:
- XP Required: 705,744 XP
- Effective XP per Bone: 72 * 3.5 = 252 XP
- Bones Needed: CEILING(705,744 / 252) = 2,809 bones
- Total Cost: 2,809 * 2,000 GP = 5,618,000 GP
This example clearly shows the significant investment needed even for a few levels, especially for crucial unlocks like Piety.
Example 2: Level 1 to 43 for Protect from Melee (Chaos Altar)
A new player wants to quickly get 43 Prayer for Protect from Melee using Big Bones at the Chaos Altar (risky but efficient).
- Inputs:
- Current Prayer Level: 1
- Target Prayer Level: 43
- Bone Type: Big Bones (Base XP: 15)
- Altar/Method: Chaos Altar (Multiplier: 3.5x)
- Price per Bone: 500 GP
- Results:
- XP Required: 53,320 XP
- Effective XP per Bone: 15 * 3.5 = 52.5 XP
- Bones Needed: CEILING(53,320 / 52.5) = 1,016 bones
- Total Cost: 1,016 * 500 GP = 508,000 GP
This demonstrates a more budget-friendly approach, highlighting how bone choice and altar method significantly impact the overall cost for OSRS prayer cost.
How to Use This OSRS Prayer Calculator
- Enter Current Prayer Level: Input your current Prayer skill level in the first field. Ensure it's between 1 and 99.
- Enter Target Prayer Level: Specify the Prayer level you wish to achieve. This also must be between 1 and 99.
- Select Bone Type: Choose the type of bones you plan to use from the dropdown menu. Each bone type has a different base XP value.
- Select Altar/Method: Pick your desired training method. Options include burying, Ectofuntus, Gilded Altar, and Chaos Altar, each with a unique XP multiplier.
- Enter Price per Bone (GP): Input the current Grand Exchange price for a single unit of your chosen bone. This value is crucial for accurate cost estimation.
- Click "Calculate" (or type): The results will update automatically as you change inputs. You can also click the "Calculate" button to manually trigger an update.
- Interpret Results:
- Total Cost: Your primary result, showing the estimated GP needed.
- XP Required: The raw XP difference between your levels.
- Bones Needed: The rounded-up total number of bones.
- XP per Bone (Effective): The actual XP you'll gain per bone, considering your chosen altar.
- Copy Results: Use the "Copy Results" button to quickly grab all calculated values and assumptions for your notes or sharing.
- Reset: The "Reset" button will restore all fields to their default, intelligent starting values.
Key Factors That Affect OSRS Prayer Training
Optimizing your Prayer training involves understanding several key factors:
- Bone Type: This is the most significant factor for base XP. Higher-tier bones like Dragon Bones or Ourg Bones offer substantially more XP per bone than standard Bones, but often come at a higher price. This directly impacts the best bones osrs choice for your budget.
- Altar/Method: The chosen training method dramatically affects the XP multiplier.
- Burying: 1x XP. Slowest, but free.
- Ectofuntus: 4x XP. Highest XP, but very slow due to ritual.
- Gilded Altar: 3.5x XP. Best balance of speed and XP for most players, requiring a Player-Owned House (POH) and usually two lit incense burners.
- Chaos Altar: 3.5x XP. Located in the Wilderness, offering high XP rates with a 50% chance not to consume bones, but comes with significant Player-Killing (PK) risk.
- Price per Bone (GE): Grand Exchange prices fluctuate daily. Monitoring prices can save millions of GP. Buying during dips and selling during peaks (if you're a merchant) can greatly reduce the osrs prayer cost.
- Altar Setup (Gilded Altar): For Gilded Altars, having two lit incense burners (requires level 50 Firemaking) and another player to light them for maximum efficiency is crucial. This maximizes the 3.5x XP bonus.
- Prayer Potions/Super Restores: While not directly affecting XP per bone, using these potions for prolonged training sessions (e.g., at the Chaos Altar or for bossing) adds to the overall cost of maintaining Prayer points, which is a related cost.
- Quests and Diaries: Some quests (e.g., Holy Grail) award significant Prayer XP. Completing certain Achievement Diaries can also provide XP lamps that can be used on Prayer, reducing the number of bones needed.
- Prayer Skill Outfit: The Prayer skill outfit (from Temple Trekking) provides a small XP boost (up to 2.5% for the full set), which can slightly reduce bones needed over time.
OSRS Prayer Calculator FAQ
A: This calculator is highly accurate, using official Old School RuneScape XP values and multipliers for bones and altars. GE prices are user-input, so accuracy for cost depends on the real-time price you enter.
A: No, this calculator is specifically designed for OSRS Prayer training. For other skills, you would need a dedicated OSRS skills guide or calculator. We offer an OSRS XP calculator for general use.
A: Different altars and methods offer varying XP rates to balance convenience, cost, and risk. Burying is free but slow (1x). Ectofuntus is 4x but tedious. Gilded Altar (3.5x) is fast and efficient but requires a POH. Chaos Altar (3.5x + 50% bone save chance) is high XP but in the dangerous Wilderness.
A: The calculator provides an estimate based on the price you input. If GE prices fluctuate significantly, your actual cost may vary. Always double-check current prices before making large purchases.
A: You cannot use a fraction of a bone. If you need 100.5 bones, you must acquire 101 bones to reach your target XP. The calculator uses a ceiling function to account for this.
A: No, this calculator focuses solely on the XP and cost of bones. The cost of potions needed to sustain Prayer points during training is a separate expense not included here.
A: Superior Dragon Bones are a high-level bone type dropped by Vorkath, offering 150 base XP, making them one of the most efficient bones for OSRS Prayer XP.
A: Prayer is generally considered one of the most expensive skills to train in OSRS, especially for higher levels, due to the cost of bones. However, efficient methods and careful price monitoring can mitigate some costs. Check our OSRS money making guide for ways to fund your training.