Mtg Land Calculator by Cards

This MTG Land Calculator helps you determine how many basic land cards you need in your Magic: The Gathering deck based on your deck size and desired land ratio. Whether you're building a competitive deck or just want to ensure you have enough mana sources, this tool provides a quick and accurate calculation.

How to Use This Calculator

Using this calculator is simple:

Enter your deck size (total number of cards in your deck)
Select your desired land ratio (percentage of your deck that should be basic land cards)
Click "Calculate" to see your recommended number of land cards
Review the result and adjust your deck as needed

The calculator will show you the exact number of basic land cards you should include in your deck based on the inputs you provide.

Formula Used

The formula used in this calculator is:

Number of Land Cards = (Deck Size × Land Ratio) / 100

Where:

Deck Size = Total number of cards in your deck
Land Ratio = Desired percentage of your deck that should be basic land cards

This formula provides a straightforward way to calculate the number of basic land cards needed to maintain your desired mana base percentage.

Worked Example

Let's say you have a 60-card deck and you want 24% of your deck to be basic land cards.

Using the formula:

Number of Land Cards = (60 × 24) / 100 = 14.4

Since you can't have a fraction of a card, you would round up to 15 basic land cards in your deck.

This example shows how the calculator helps you maintain the correct mana base percentage in your deck.

Complete Guide to MTG Land Requirements

Why Land Count Matters

In Magic: The Gathering, having enough basic land cards is crucial for casting spells. Each player starts with seven lands in their deck, but as the game progresses, these lands are tapped to produce mana. Having an adequate number of basic land cards ensures you can consistently cast your spells throughout the game.

Standard Deck Sizes

Most competitive MTG decks use one of these standard sizes:

40-card decks (for limited formats)
60-card decks (for constructed formats)
100-card decks (for Commander format)

Recommended Land Ratios

The ideal land ratio depends on your deck's mana curve and playstyle:

Deck Size	Recommended Land Ratio	Minimum Land Count
40-card	20-25%	8-10
60-card	20-25%	12-15
100-card	15-20%	15-20

Types of Basic Lands

In MTG, there are five basic land types:

Plains (white)
Island (blue)
Swamp (black)
Mountain (red)
Forest (green)

For most decks, you'll want a mix of these basic lands that match your deck's color identity.

Dual Lands and Fetch Lands

Some decks use dual lands or fetch lands to provide additional mana options. These can help you maintain a consistent mana base while reducing the number of basic land cards needed.

Testing Your Land Count

To ensure your land count is optimal:

Play several games with your current land count
Note how often you run out of mana
Adjust your land count based on your observations
Consider your deck's mana curve and playstyle

Common Mistakes

Avoid these common land calculation mistakes:

Using too few lands (causing mana screw)
Using too many lands (reducing your spell count)
Ignoring your deck's mana curve
Not considering your playstyle

Frequently Asked Questions

How do I calculate the number of basic land cards I need?

Use the formula: (Deck Size × Land Ratio) / 100. For example, a 60-card deck with a 24% land ratio needs 14.4 land cards, which you would round up to 15.

What's the ideal land ratio for my deck?

The ideal ratio depends on your deck size and playstyle. Generally, 20-25% is good for 60-card decks, while 15-20% works for 100-card decks.

Should I use dual lands instead of basic lands?

Dual lands can be useful, but they're not a substitute for basic lands. Most decks need a mix of both to maintain a consistent mana base.

How do I know if I have enough lands?

Play several games and observe how often you run out of mana. If you're struggling, consider increasing your land count.

What's the difference between basic lands and dual lands?

Basic lands provide one type of mana, while dual lands provide two types. Dual lands can be more flexible but don't replace the need for basic lands.