foe 1.9 calculator

Professionally calculate Great Building investments and secure positions using the 1.9 meta strategy.

What is foe 1.9 calculator?

The foe 1.9 calculator is a specialized tool used by Forge of Empires players to facilitate the highly efficient "1.9 Boost" strategy. This strategy relies on the Level 80 Arc Great Building, which provides a 90% bonus (a 1.9 multiplier) to all rewards received from contributing to other Great Buildings. By using a foe 1.9 calculator, players can determine exactly how many Forge Points (FP) an investor needs to contribute to break even while the building owner minimizes their personal costs.

Who should use it? Any player in a guild that runs a 1.9 thread or any player leveling their own Great Buildings should use a foe 1.9 calculator. Common misconceptions include the idea that owners lose FP in this process; in reality, the 1.9 method is the cheapest way to level buildings compared to swapping FP or leveling alone.

foe 1.9 calculator Formula and Mathematical Explanation

The core logic behind the foe 1.9 calculator involves two primary calculations: the investment cost and the "safe spot" or security threshold.

• Investment Cost: Investment = Math.ceil(BaseReward * 1.9)
• Security Formula: To secure a spot, the owner must ensure that no other player can contribute more than the current position holder. The formula used is: Owner Investment Required = Total Level Cost - (2 * (Base Reward * 1.9)) - Already Invested.

Variable	Meaning	Unit	Typical Range
Total FP	Total points required for the current level	Forge Points (FP)	200 – 25,000+
Base Reward	Points shown in the GB reward window	Forge Points (FP)	5 – 2,500
Multiplier	Bonus from the Arc (Standard 1.9)	Decimal Factor	1.8 – 1.95
Safe Spot	Points needed to prevent "sniping"	Forge Points (FP)	0 – 5,000

Practical Examples (Real-World Use Cases)

Example 1: The Arc Level 20 to 21

Suppose you are leveling your Arc. The total cost is 1,200 FP. The P1 reward is 200 FP. Using the foe 1.9 calculator, we find:

• P1 Investment: 200 * 1.9 = 380 FP.
• Owner needs to add: 1,200 – (2 * 380) = 440 FP.
• Once the owner adds 440 FP, the investor can safely add 380 FP without being sniped by someone else.

Example 2: Castel del Monte (Late Game)

A late-game Castel del Monte might have a total cost of 4,000 FP and a P1 reward of 900 FP. The foe 1.9 calculator shows:

• P1 Investment: 900 * 1.9 = 1,710 FP.
• Owner adds: 4,000 – (2 * 1,710) = 580 FP.
• The owner saves thousands of FP compared to self-leveling.

How to Use This foe 1.9 calculator

1. Input Total FP: Look at your Great Building and find the "Total Progress" needed for the current level. Enter it into the first field of the foe 1.9 calculator.

2. Input Current FP: Enter any FP you have already put into the building or that others have donated.

3. Enter Base Rewards: Go to the "Rewards" tab of your Great Building and enter the FP numbers shown for Positions 1 through 5.

4. Analyze Results: The foe 1.9 calculator will instantly show you how much the owner must pay to "secure" each spot and how much the investors should pay.

Key Factors That Affect foe 1.9 calculator Results

• Arc Level: While 1.9 is the standard, some elite guilds use 1.92 or 1.95, which changes the multiplier in the foe 1.9 calculator math.
• Sniper Activity: If you don't use a foe 1.9 calculator to secure spots, neighbors may "snipe" positions for profit, causing you to lose FP.
• Great Building Type: Some buildings (like the Oracle) have very low rewards, making 1.9 threads less effective.
• Rounding Rules: FoE always rounds investment rewards up. Our foe 1.9 calculator accounts for this math. ceil() logic.
• Current Progress: If you add too many FP yourself, you lose the efficiency of the foe 1.9 calculator strategy.
• Leveling Blocks: Some players level buildings in "blocks" to maximize their foe 1.9 calculator outputs during specific events.

Frequently Asked Questions (FAQ)

Does the foe 1.9 calculator work for all buildings?

Yes, the foe 1.9 calculator logic applies to any Great Building that offers FP rewards for reward positions.

What does "securing" a position mean?

Securing means adding enough FP so that another player cannot overtake the current investor even if they fill the rest of the building's requirements.

Why 1.9? Why not 2.0?

The 1.9 ratio is used because a Level 80 Arc provides exactly a 90% bonus. This allows the investor to donate the exact amount they will get back, costing them zero net FP.

Can I use this for 1.8 threads?

While designed as a foe 1.9 calculator, the math is similar, though 1.8 threads are outdated in most modern FoE guilds.

What happens if I don't follow the foe 1.9 calculator safe spot?

If you post a spot before it is "safe," a neighbor could donate more than the 1.9 amount and take the spot, often taking more FP from you in the long run.

Does the calculator include blueprints?

This foe 1.9 calculator focuses on FP, but the 1.9 multiplier also applies to the blueprints and medals you receive.

What is a "Snipe"?

A snipe is when a player outside your 1.9 thread contributes to your building to make a profit, usually because the owner didn't use a foe 1.9 calculator to secure the spot.

How do I calculate for an Arc level 100?

An Arc level 100 has a higher multiplier. You would need to adjust the 1.9 factor in the math to approximately 1.92.