Forge of Empires Great Building Calculator
Calculate Forge Point costs and secure your GB reward spots.
GB Leveling Calculator
Owner’s Cost = Total FP Cost – FP contributed by patrons for reward spots (at your specified Arc Bonus rate).
| Level | Total FP | Owner FP | P1 Secure | P2 Secure | P3 Secure |
|---|
What is a Forge of Empires Great Building Calculator?
A forge of empires great building calculator is an essential tool for any serious Forge of Empires (FoE) player. It helps you determine the precise number of Forge Points (FPs) you, the owner of a Great Building (GB), need to contribute to level it up. This calculation takes into account the contributions from other players who take reward spots (P1-P5). By using a forge of empires great building calculator, you can efficiently manage your resources, avoid overpaying, and secure reward spots for your friends and guildmates at a fair rate, typically in a “1.9 thread” or similar contribution group.
This tool is for players of all levels, from those just starting with their first Great Buildings to seasoned veterans optimizing high-level Arcs. A common misconception is that you need to fund a majority of your GB’s level yourself. However, a proper forge of empires great building calculator shows that with a high-level Arc bonus, a significant portion of the cost is covered by other investors, making leveling much cheaper for the owner.
Forge of Empires Great Building Calculator Formula and Mathematical Explanation
The core logic of a forge of empires great building calculator revolves around determining how many Forge Points the owner must add to “secure” the reward spots for other players. A spot is secure when a “sniper” (an unwanted player) cannot profit by taking the spot, even after the owner and the intended patron have contributed.
The steps for each level are:
1. **Calculate Total FP Cost:** This is a fixed value for each level, determined by the game developers.
2. **Calculate Reward Values:** The FP rewards for the top 5 spots (P1 to P5) are a fixed percentage of the Total FP Cost.
3. **Calculate Patron’s Cost:** A patron in a rate thread (e.g., 1.9) will pay the reward value multiplied by the rate (e.g., 100 FP reward * 1.9 = 190 FP). Our calculator uses the Arc Bonus percentage, so the calculation is `Reward / (1 + Arc Bonus / 100)`.
4. **Calculate Owner’s ‘Secure’ Contribution:** The owner must add enough FPs so that the remaining amount to level is exactly what the patrons will cover. The formula is: `Owner’s Share = Total FP – SUM(Patron’s Cost for all 5 spots)`. Any FPs added by the owner reduces the amount needed from patrons.
| Variable | Meaning | Unit | Typical Range |
|---|---|---|---|
| Current Level | The starting level of the GB | Integer | 1 – 100+ |
| Desired Level | The target level for the GB | Integer | 2 – 100+ |
| Arc Bonus | The % bonus on rewards from the patron’s Arc | Percent (%) | 0 – 100+ |
| Owner’s Cost | The total FPs the owner must contribute | Forge Points | Varies |
Practical Examples (Real-World Use Cases)
Example 1: Leveling a Statue of Zeus from 10 to 11
Imagine your Statue of Zeus is at level 10 and you want to get it to 11. The total cost is 258 FPs. You are in a 1.9 guild thread (meaning patrons have a 90% Arc bonus).
- Inputs: Current Level: 10, Desired Level: 11, Arc Bonus: 90%.
- Calculation: The forge of empires great building calculator determines the total rewards and the amount patrons will pay. For level 11, the total secured contributions are 157 FP.
- Outputs: Total Cost: 258 FP. Patrons Pay: 157 FP. Owner’s Cost: 258 – 157 = 101 FP. You need to add 101 FPs to make the level secure for your guildmates.
Example 2: A Multi-Level Jump for an Arc
You want to level your Arc from 79 to 80. This is a big jump! Let’s say your guildmates also have 90% Arc bonuses.
- Inputs: Current Level: 79, Desired Level: 80, Arc Bonus: 90%.
- Calculation: The total cost to go from 79 to 80 is 3,365 FP. The calculator finds that patrons will cover a total of 3,135 FP for the top 5 spots.
- Outputs: Total Cost: 3,365 FP. Patrons Pay: 3,135 FP. Owner’s Cost: 3,365 – 3,135 = 230 FP. Using this forge of empires great building calculator saves you from guessing and ensures the level is funded efficiently. See our Forge of Empires strategy guide for more tips.
How to Use This Forge of Empires Great Building Calculator
- Enter Current Level: Input the current level of your Great Building.
- Enter Desired Level: Input the level you wish to achieve. The calculator can handle multiple levels at once.
- Set Arc Bonus %: Enter the bonus percentage of the players who will be contributing to your GB. For a standard 1.9 thread, this is 90%.
- Review the Results: The “Total Owner’s Cost” shows the total Forge Points you need to add. The table below provides a detailed breakdown for each level, including the amount you must add to secure each spot (P1, P2, etc.) for your patrons.
- Use the Data: You can now add your share of FPs to your building. Once your share is in, you can post the building in your guild’s contribution thread, letting others know the spots are secure and ready to be taken. The “Copy Results” button helps share this information easily.
Key Factors That Affect Forge of Empires Great Building Calculator Results
- Arc Bonus Level: This is the single most important factor. The higher the Arc bonus of your contributors, the less you have to pay as the owner. A player with a high-level Arc pays significantly less for a reward spot. Our FoE GB leveling tool can help plan this.
- The Great Building’s Level: The cost to level up a GB increases exponentially. The forge of empires great building calculator is invaluable for higher levels where costs are enormous.
- Number of Secured Spots: Most rate threads secure all 5 spots. If you only secure P1 and P2, your cost will be higher as the contribution from P3-P5 is not guaranteed.
- “Snipers”: These are players who contribute to your GB outside of your arranged group. They can disrupt your plans. Securing spots properly, as calculated by this tool, makes sniping unprofitable for them. Learn more about securing great building spots.
- Self-Contribution vs. Patron Contribution: The calculator’s primary job is to balance these two. Your goal is to minimize your self-contribution by maximizing what patrons pay fairly.
- Guild Policies: Your guild might have specific rules about contribution threads (e.g., 1.9 vs 1.92). Always use the rate your guild has agreed upon in the forge of empires great building calculator. For more on this, check out our guide on FoE FP calculator strategies.
Frequently Asked Questions (FAQ)
1. What is a ‘1.9 thread’?
A ‘1.9 thread’ is a group of players (usually in a guild) who have agreed to help level each other’s Great Buildings. The number ‘1.9’ refers to the rate of return on investment. If a reward spot gives 100 FPs, a player in a 1.9 thread expects to pay 190 FPs for it. This is possible because their own high-level Arc gives them a 90% bonus on rewards (100 FP reward + 90% bonus = 190 FP back), so they break even. Using a forge of empires great building calculator is critical for managing these threads.
2. What does it mean to ‘secure’ a spot?
A spot is ‘secure’ when the owner has contributed enough FPs that an outside player (a ‘sniper’) cannot make a profit by taking the spot away from the intended contributor. This calculator tells you exactly how many FPs you must add to make all spots secure.
3. Why is the owner’s cost sometimes so low?
Thanks to the power of a high-level Arc, the total amount paid by contributors can cover most, or even all, of a level’s cost. For certain GB levels (known as “sweet spots”), the owner may have to pay very little or nothing at all.
4. Can this calculator handle multiple levels at once?
Yes. Simply enter your starting and desired levels, and the forge of empires great building calculator will compute the total owner’s cost for the entire range and provide a level-by-level breakdown in the table.
5. What if my guild uses a different rate, like 1.85 or 1.92?
You can use any rate by simply changing the ‘Your Arc Bonus (%)’ input. For a 1.85 rate, enter 85. For a 1.92 rate, enter 92. The math adjusts automatically.
6. Does this work for all Great Buildings?
Yes, the leveling costs and reward structures are the same for all Great Buildings. This forge of empires great building calculator works for any GB, from a Statue of Zeus to The Arc itself.
7. What is ‘sniping’?
‘Sniping’ is when a player who is not part of your leveling group adds FPs to your Great Building to steal a reward spot from one of your partners. Using this tool to properly secure the spots makes this unprofitable for the sniper. Our article on great building investment covers this in detail.
8. How do I use the ‘Copy Results’ button effectively?
After calculating, click ‘Copy Results’. This copies a summary of the costs to your clipboard. You can then paste this directly into your in-game guild chat to show your guildmates how much you’ve contributed and what is needed for each secure spot.