Legion Calculator: Optimize Your Army Training


Legion Calculator for Strategy Games

Estimate the time and resources required to train your army.



Total number of individual troops or units you want to train.


The default time it takes to train a single unit without any boosts.


The unit of time for the ‘Base Training Time’.


Enter any percentage-based boosts from research, items, or skills.


Amount of gold required to train one unit.


Amount of food required to train one unit.


Amount of wood or a third resource required to train one unit.
Calculating…

Resource Cost Comparison

Visual breakdown of the total resources needed.

Resource Breakdown

Resource Cost per Unit Total Cost
Gold 50 50,000
Food 75 75,000
Wood/Lumber 25 25,000
This table shows the costs per unit and the total calculated costs for your legion.

What is a Legion Calculator?

A legion calculator is a specialized tool used by players of strategy games, particularly city-builders and real-time strategy (RTS) titles, to manage army training. Its primary purpose is to calculate the total time and resources required to produce a certain number of troops, known as a “legion.” This allows for efficient planning, ensuring that a player has enough resources like gold, food, and wood stockpiled before starting a large training queue. Using a legion calculator helps prevent resource shortages and optimizes the use of time-based training speed boosts.

The Legion Calculator Formula and Explanation

The calculations behind this tool are straightforward but crucial for game planning. They involve base costs, quantities, and percentage modifiers.

Total Resource Cost Formula:

Total Cost = Number of Units × Cost per Unit

Total Training Time Formula:

Total Time = (Number of Units × Base Time per Unit) / (1 + (Training Boost % / 100))

Variable Meaning Unit Typical Range
Number of Units The total size of the army you wish to train. Unitless Integer 1 – 1,000,000+
Base Time per Unit The default training duration for a single soldier. Seconds, Minutes, Hours 5 seconds – 2 hours
Training Boost % A percentage reduction in training time from skills or research. Percentage (%) 0% – 500%+
Cost per Unit The amount of a specific resource needed for one soldier. Gold, Food, etc. 1 – 10,000+

Practical Examples

Example 1: Training a Basic Infantry Force

A player wants to train 2,000 basic infantry. They have a 50% training speed boost from their research tree.

  • Inputs:
    • Number of Units: 2,000
    • Base Training Time: 45 Seconds
    • Training Boost: 50%
    • Gold Cost: 100
    • Food Cost: 50
  • Results:
    • Total Time: 16 hours, 40 minutes
    • Total Gold: 200,000
    • Total Food: 100,000

Example 2: Training Elite Cavalry

A high-level player is preparing for war and needs 500 elite cavalry units. These are expensive and take a long time to train, but the player has a 120% boost from hero skills and VIP status.

  • Inputs:
    • Number of Units: 500
    • Base Training Time: 15 Minutes
    • Training Boost: 120%
    • Gold Cost: 1,200
    • Food Cost: 800
  • Results:
    • Total Time: 2 days, 9 hours, 52 minutes, 30 seconds
    • Total Gold: 600,000
    • Total Food: 400,000

How to Use This Legion Calculator

  1. Enter Unit Count: Start by inputting the total number of soldiers you want in the “Number of Legions/Units” field.
  2. Set Base Time: Enter the training time for a single unit and select the correct time unit (seconds, minutes, or hours). You can find this information in your in-game barracks.
  3. Add Boosts: Input your total training speed boost as a percentage. For example, a 75% boost should be entered as ’75’.
  4. Define Costs: Fill in the Gold, Food, and Wood/Lumber costs for a single unit.
  5. Review Results: The calculator will instantly update, showing you the total time required, the total cost for each resource, and the amount of time you’ve saved due to your boosts.

Key Factors That Affect Legion Training

  • Technology Research: Most strategy games have a tech tree that includes upgrades to reduce training time or cost.
  • Building Levels: The level of your barracks or other military buildings often dictates training speed and queue capacity.
  • Hero/Commander Skills: Assigning a hero with training-related skills to a city can provide significant boosts.
  • VIP Level: Many games offer a VIP system where higher levels grant permanent, account-wide boosts to training speed.
  • Temporary Buffs: Kingdom-wide buffs, alliance buffs, or personal buffs from items can temporarily increase training speed.
  • Resource Production: Your ability to train is ultimately limited by your economy. Strong resource production is essential to sustain a large army. Read more about economic management.

Frequently Asked Questions (FAQ)

How is the training boost applied?

The boost is a divisor, not a multiplier. A 100% boost means you train twice as fast (time is halved), not that it takes zero time. Our legion calculator uses the standard formula for this.

What if my game uses different resources?

You can still use the calculator. Simply treat the “Gold,” “Food,” and “Wood” labels as placeholders for your game’s resources, such as Stone, Iron, or Mana. You can learn about advanced resource strategies here.

Why is my in-game time different?

Ensure you have combined all your boosts correctly. Some boosts are additive (e.g., 20% + 30% = 50%), while some might be multiplicative. This calculator assumes additive boosts, which is the most common implementation.

Does this account for training capacity (queue size)?

No, this calculator determines the total time to train a number of units as if you could do it in one continuous batch. It does not account for limitations in your training queue size.

What does “unitless” mean for the number of units?

It simply means the quantity is a raw count, not a measurement with a specific unit like kilograms or meters. It’s just the number of soldiers.

How can I find my base training time?

Go to your training building in-game and view the details for a single troop before you start training. Make sure any temporary buffs are not active to find the true base time.

Can I use this for upgrading troops?

Yes. Simply input the time and resource cost required to upgrade one unit instead of training a new one. The calculation works the same way.

Where can I find my training boost percentage?

You may need to check multiple places: your technology tree, your player profile for VIP status, your city hall for kingdom-wide buffs, and any assigned heroes’ skill trees. Add them all together. A guide to finding all boosts can be helpful.

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