Forge Of Empires 1.9 Calculator

Optimize your Great Building investments and secure safe donor spots.

Position	Base Reward (FP)	1.9x Reward	Owner Must Add (Safe)
P1		–	–
P2		–	–
P3		–	–
P4		–	–
P5		–	–

What is a Forge of Empires 1.9 Calculator?

The forge of empires 1.9 calculator is an essential tool for players of the popular strategy game who want to participate in high-level Great Building (GB) leveling threads. In Forge of Empires, a “1.9 thread” is a cooperative arrangement where players with a Level 80 Arc donate to others’ Great Buildings. Because a Level 80 Arc provides a 90% bonus to rewards, these players can contribute 1.9 times the base reward value without losing any of their own Forge Points (FP).

Using a forge of empires 1.9 calculator allows the GB owner to determine exactly how many Forge Points they must personally invest to ensure that a specific donor spot (P1 through P5) is “safe.” A spot is considered safe when no other player can overtake the donor’s position by contributing more points. This calculation prevents sniping and ensures that the leveling process is efficient for everyone involved in the social guild ecosystem.

Forge of Empires 1.9 Calculator Formula and Mathematical Explanation

The mathematics behind the forge of empires 1.9 calculator involves calculating the cost of a position and the “Owner Must Add” (OMA) value. The core logic relies on the total FP required for the level and the base rewards provided by the game for the top 5 positions.

The Core 1.9 Formula

To find the 1.9x cost of any position:

Slot Cost = Math.ceil(Base Reward × 1.9)

The Safety Formula

A position is safe if the owner has contributed enough so that the remaining points needed to finish the level, minus the donor’s contribution, is less than what the donor contributed. This simplifies to:

Owner Investment Required = Total Level FP - (2 × Slot Cost)

Variable Definitions Table

Variable	Meaning	Unit	Typical Range
Total Level FP	Complete cost to reach the next level	FP	100 – 15,000+
Base Reward	Original reward without Arc bonus	FP	5 – 2,000+
Multiplier	The Arc bonus factor applied	Ratio	1.0 – 1.9+
Safe Spot	Owner investment to secure a donor	FP	Calculated

Practical Examples (Real-World Use Cases)

Example 1: Leveling The Arc at Level 30

Suppose you are leveling your Arc and the total FP required is 1,200. The P1 base reward is 100 FP. Using the forge of empires 1.9 calculator, the donor will pay 190 FP (100 * 1.9). To make P1 safe, you need to calculate: 1,200 – (2 * 190) = 820 FP. This means you must personally add 820 FP before posting P1 in a 1.9 thread.

Example 2: Small GB Leveling (Zeus)

If your Zeus requires 200 FP to level and P1 reward is 10 FP. The donor pays 19 FP. The owner investment needed is 200 – (2 * 19) = 162 FP. This highlights how smaller Great Buildings often require a much larger percentage of owner investment compared to high-level buildings.

How to Use This Forge of Empires 1.9 Calculator

1. Input Total Level FP: Find this by looking at your Great Building’s level progress bar.
2. Enter Your Investment: Input how many FP you have already put into the building.
3. Check Base Rewards: Look at the “Rewards” list for positions 1-5 and enter them into the table.
4. Read the Safe Column: The forge of empires 1.9 calculator will highlight how much more you need to add to make each spot secure.
5. Copy the Thread Text: Use the copy button to get a pre-formatted message for your guild’s 1.9 thread.

Key Factors That Affect Forge of Empires 1.9 Calculator Results

• Arc Level of Donors: While the calculator assumes a 1.9 multiplier (Level 80 Arc), some advanced guilds use 1.92 or 1.94 multipliers for owners with higher-level Arcs.
• Building Type: High-reward buildings like The Arc or Alcatraz reach a “sweet spot” where the owner needs to add very little FP because the donor rewards cover most of the cost.
• Sniping Risks: If you don’t use a forge of empires 1.9 calculator correctly, neighbors may “snipe” your building by contributing more than 1.9x to steal the blueprints and rewards.
• Level Range: GBs typically have a “cheap” phase between level 30 and 60 where 1.9 contributions cover almost the entire level.
• FP Bank Management: Using the calculator helps you manage your liquid Forge Point inventory effectively.
• Guild Rules: Always ensure your multiplier matches your guild’s specific 1.9 thread requirements.

Frequently Asked Questions (FAQ)

Why is it called a 1.9 thread?

It refers to the 190% (1.9x) reward donor receive when they have a Level 80 Arc, which gives a 90% bonus on top of the base reward.

What does “Safe” mean in the forge of empires 1.9 calculator?

A spot is safe when the owner has invested enough that no one can “snipe” the spot by putting in 1 FP more than the 1.9x donor, thus securing the spot for the intended donor.

Can I use this for 1.8 threads?

Yes, simply change the multiplier input in the forge of empires 1.9 calculator to 1.8.

What happens if I post a spot before it’s safe?

You risk a neighbor or non-guild member putting in FP to take the spot, often for less than the 1.9x amount, which costs you more FP in the long run.

Is the 1.9 calculator legal in FoE?

Yes, it is a third-party math tool. It does not automate game actions or violate InnoGames’ terms of service.

Why do P4 and P5 often require so much owner investment?

Because their base rewards are very low, the 1.9x multiplier doesn’t cover much of the total level cost, leaving more for the owner.

Does this calculator include the bonus from my own Arc?

No, your own Arc only affects rewards you receive from *other* people’s buildings. It does not reduce the cost of your own buildings.

How often should I use the forge of empires 1.9 calculator?

Every time you level a building to ensure you are not wasting Forge Points or risking snipes.

Related Tools and Internal Resources

• Great Buildings Reward Calculator – Comprehensive stats for every building.
• Arc Level 80 Strategy – How to rush your Arc to the 1.9 milestone.
• Forge of Empires Daily FP – Maximize your daily Forge Point income.
• Leveling GB Calculator – Detailed math for power-leveling groups.
• FoE Trade Calculator – Optimize your goods trades for GB construction.
• FP Calculator for FoE – Strategic guide for managing investment resources.