Forge of Empires Calculator

Every FoE calculation you need, free and instant

Forge of Empires math is complex — Arc bonuses, position payouts, era-scaling GB rewards. Doing it in your head every time you contribute FP is a good way to make mistakes. This section handles all of it: pick a tool below, plug in your numbers, get the answer.

Core Calculator Tools

Arc Calculator
Calculate exact FP contribution and reward multiplier for The Arc Great Building...
GB Investment Calculator
Plan every Great Building investment with exact ROI numbers...
1.9 Thread Calculator
Optimize 1.9 thread trades — see if a trade actually pays off...
P1-P5 Rewards Table
Full reward tables for every position, every GB, every level...
Secure Spot Calculator
Calculate the exact FP needed to lock a P1-P5 position...

Great Building Guides

Detailed guides for the most important Great Buildings — priority, ROI, leveling tips:

The Arc
Oceanic Future
Highest priority in the game
Observatory
Colonial Age
Essential for guild members
Cape Canaveral
Modern Era
Strong for GBG (Guild Battlegrounds
Alcatraz
Progressive Era
Essential for military players
Hydra
Space Age Titan
Top-tier late-game GB
Pegasus
Space Age Titan
Top-tier late-game
Atomium
Modern Era
High priority
Kraken
Ocean Future
GBG must-have
Gaea Statue
Space Age Asteroid Belt
Situational
Deal Castle
High Middle Ages
Early progression pick

Open the FoE Calculator

Use the free calculator to test your build against the exact game math.

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