Forge of Empires Calculator – GB, FP, Production, Battle & Research
Plan Great Buildings contributions (1.8/1.9/1.94), forecast Forge Points, tally production, gauge battle boosts, and estimate research timelines in one clean tool.
Tip: All math runs instantly as you type. Values are saved locally in your browser so you can come back later.
Great Buildings Calculator (1.8 / 1.9 / 1.94 & Custom)
Enter the current level’s Base FP Cost and the base rewards for places 1–5 (as shown in-game for the next level). Choose your preferred multiplier (e.g., 1.9 for an Arc ~90% bonus). We’ll propose deposits for P1–P5, show owner preparation required, and compute ROI for any custom contribution.
Suggested Deposits & ROI
| Place | Base Reward | Suggested Deposit (multiplier) | Return (with multiplier) | ROI @ Suggested | Custom Deposit | ROI @ Custom |
|---|---|---|---|---|---|---|
| Total (P1–P5) | – | – | – | |||
Note: "Suggested Deposit" is simply ceil(baseReward × multiplier). For a classic 1.9 leveling, owners typically prepare enough FP so the sum of suggested deposits does not exceed the level cost. If the total exceeds cost, reduce lower places first or increase owner prep to maintain safety.
Forge Points (FP) Planner
Projection (next 14 days)
| Day | FP at Start | Net Change | FP at End |
|---|
Production Calculator (Goods / Coins / Supplies)
Add your production lines below. You can mix durations (e.g., 4h, 8h, 24h). Totals show per day and per week.
Lines
| # | Type | Buildings | Yield per Cycle | Cycle (hours) | Cycles/Day | Total/Day | Total/Week | |
|---|---|---|---|---|---|---|---|---|
| Grand Total / Day | 0 | 0 | ||||||
Battle Boost Calculator
This index compares effective stats: Effective Attack = base × (1 + boost/100) and the same for defense. The Power Ratio is a quick indicator; actual combat still depends on unit types, terrain, bonuses, and AI moves. Use it for scouting only.
Research Calculator
Forge of Empires – Quick Answers
How are points (ranking score) calculated in Forge of Empires?
Your score is primarily the sum of contributions from buildings (including Great Buildings and their levels), research unlocked, expansions, and certain milestones like quests and medals. Because contributions vary by age and building, this tool focuses on planning inputs (FP, goods, GB levels) rather than reproducing the full in-game score formula.
How is guild power calculated?
Guild power comes from your members’ activity (expeditions, guild battlegrounds, guild raids where applicable), contributions to buildings, and other seasonal systems. Check your guild’s UI for live values; use this page to plan FP and goods needed to push GB levels that boost guild play.
How is guild ranking calculated?
Guild ranking is based on accumulated guild power over the current evaluation period. Active play in expeditions and battlegrounds matters most. Coordinate GB boosts and FP usage with the calculators above to lift your guild’s power curve.
How is player score calculated?
Player score aggregates your city’s progress: research, expansions, building values, and GB levels. Raising Great Building levels and unlocking tech are reliable ways to move your score. Use the GB and Research calculators to plan the fastest path.
How is prestige calculated?
Prestige in events/seasons tallies from milestones and rankings; its mechanics may change by event. Use Production and FP tools to ensure you have the goods and points ready when events arrive.
Helpful resources: FoE Wiki · Official Forum · FoE Tools · FoE Helper
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