GB Forge of Empires Calculator

Calculator Form

Great Building Name

Current Level

Target Level

FP Required to Level

Owner FP Already Added

Contribution Multiplier

Safety Buffer Percent

Active Reward Places

Rounding Method

Reward Place Inputs

Place	Base Reward FP	Existing Investor FP
1st
2nd
3rd
4th
5th

Example Data Table

Place	Reward FP	Multiplier	Deposit	Existing FP	Still Needed
1st	190	1.90	361	0	361
2nd	95	1.90	181	40	141
3rd	30	1.90	57	0	57
4th	15	1.90	29	0	29
5th	5	1.90	10	0	10

Formula Used

Lock Deposit = Reward FP × Contribution Multiplier × (1 + Safety Buffer ÷ 100).

FP Still Needed = Lock Deposit − Existing Investor FP. Negative values are shown as zero.

Owner Finish Cost = Total FP Required − Owner FP Already Added − Final Investor FP. Negative values are shown as zero.

Premium Over Reward = Lock Deposit − Base Reward FP. It shows the extra FP placed above the reward amount.

How to Use This Calculator

Enter the great building name, current level, and target level.
Add the total FP required to complete the selected level.
Enter owner FP already placed on the building.
Type reward FP values for each active reward place.
Add any existing investor contribution already on each place.
Choose a multiplier, safety buffer, and rounding option.
Press the calculate button and review the result above the form.
Use CSV or PDF export when you need a saved report.

Great Building Planning Guide

A GB leveling plan needs clear numbers before any player adds points. The owner wants a safe finish cost. Investors want fair lock values. This calculator brings both needs into one simple workflow. It lets you enter the total points required, current owner points, reward values, existing deposits, and a selected contribution rate.

Why Planning Matters

Great buildings can become confusing when several players reserve spots. A small mistake can change the final owner cost. It can also make one investor pay too much or too little. The tool helps avoid that issue by calculating every reward place separately. You can see the exact deposit target for first, second, third, fourth, and fifth place.

Advanced Inputs

The multiplier field supports common swap styles. Many groups use values such as 1.80, 1.90, or higher. You may enter any value that fits your group rules. The safety buffer adds an optional margin. This is useful when you want extra protection against rounding issues, accidental snipes, or unfinished deposits.

Owner Cost Review

The owner finish cost is the most important summary number. It shows how many points the owner may still need after investor spots are filled. The calculator also shows remaining points before new deposits. This helps compare the current state with the planned final state. If existing deposits are already higher than target deposits, the table marks that place as locked or over target.

Export Benefits

CSV export is helpful for spreadsheets. PDF export is useful for sharing a quick report. Both downloads include the building name, level range, multiplier, rewards, deposits, gaps, and owner totals. The result can support guild threads, private notes, or personal leveling records.

Good Habits

Always confirm reward values inside the game before posting a plan. Enter the exact required points for the selected level. Review existing deposits before asking investors to add more. Use round up when you want safer whole point targets. Keep notes for special agreements, because guild rules can differ. This planner gives structure, but the final decision should match your group method and current building screen.

The planner also encourages repeatable checks, which reduce disputes and improve confidence during busy leveling sessions with many investors.

FAQs

What does GB mean here?

GB means Great Building. The calculator helps plan Forge of Empires great building reward spots, investor deposits, and owner finish cost.

Can I use a 1.9 contribution rate?

Yes. Enter 1.9 in the multiplier field. You can also use 1.8, 1.92, 2.0, or any rate used by your group.

Why is the lock deposit rounded up?

Rounding up gives a safer whole FP value. It helps avoid short deposits when the multiplier creates a decimal result.

What is the safety buffer?

The safety buffer adds an extra percentage to each calculated deposit. It can help when your group wants stronger protection.

What if a reward place is inactive?

Set active reward places to the number you want. Places above that value are treated as inactive and are ignored.

Does the tool know every building reward?

No. You enter reward values manually. This keeps the calculator flexible for different buildings, levels, events, and group rules.

What does owner finish cost mean?

It is the FP the owner may still need after planned investor contributions are counted. It cannot show below zero.

Can I save the result?

Yes. After calculation, use the CSV or PDF buttons above the form to download a simple report.