Most Common Pattern Locks & How to Pick a Safer One

This page explains the most common Android pattern lock choices, based on real-world data and the mathematics of pattern locks, and shows you how to choose a pattern that is both memorable and hard to guess. You enter the pattern you are considering (or one you already use), and the calculator below estimates how many possible patterns share its starting point and length, giving you a rough idea of its relative strength.

Formula

The calculator uses a simplified formula for the number of possible patterns of a given length that start at a specific dot:

Possible patterns = 9 × 8^(length − 1)

Where:

• 9 = number of starting dots (dots 1–9)
• 8 = average number of next-dot choices (ignoring the “skip” rule that Android enforces)
• length = number of dots in the pattern (4 to 9)

This is a simplification. Real Android pattern locks have an extra rule: you cannot jump over an unvisited dot. For example, from dot 1 you cannot go directly to dot 3 unless dot 2 has already been used. That rule reduces the actual count, but the simplified formula gives a useful upper-bound estimate for comparison.

Worked Example

Using the defaults from the calculator (starting dot = 1, length = 4):

1. Start with 9 possible starting dots.
2. For the second dot, you have 8 choices (any dot except the starting one).
3. For the third dot, again 8 choices (ignoring the skip rule).
4. For the fourth dot, again 8 choices.

So the number of patterns of length 4 starting at dot 1 is: 9 × 8 × 8 × 8 = 9 × 512 = 4,608. The calculator shows 4,608 for both outputs (since the total for that length is the same when you ignore the start dot).

In reality, Android’s skip rule reduces this number, but the relative ranking of patterns by length remains similar.

What the Data Shows: Most Common Patterns

Several studies and leaked databases of real-world pattern locks (from security researchers and app developers) consistently find the same patterns appearing again and again. The most common pattern locks are:

• 1-2-3-4-5-6-7-8-9 – a simple top-to-bottom, left-to-right sweep. This is by far the most frequent pattern, often used as a default or by users who just want to set something quickly.
• 1-2-3-6-9 – a vertical line down the left side, then a right turn at the bottom.
• 1-2-3-4-5-6 – the top two rows, left-to-right.
• 1-2-3-4-5-6-7-8 – the first eight dots in order, skipping only the bottom-right.
• 1-2-3-6-5-4-7-8-9 – a zigzag or “N” shape.
• 1-2-3-5-7-8-9 – a pattern that forms a “U” shape.
• 1-2-3-5-6-8-9 – another common “U” variant.
• 1-2-3-4-8-9 – a rectangle missing the middle.
• 1-2-3-4-6-7-8-9 – a pattern that skips the center.
• 1-2-3-4-5-6-8-9 – a pattern that goes down the left, across the middle, and down the right.

These patterns share common traits: they start in a corner (especially the top-left), they move in straight lines, and they use only a few distinct directions. They are easy to remember and quick to draw, which is exactly why they are popular – and why they are also the first ones an attacker will try.

Why These Patterns Are So Common

People naturally gravitate toward patterns that are easy to remember and quick to draw. The top-left corner is the most common starting point because most people are right-handed and find it natural to begin there. Straight lines and simple shapes (like a “Z” or a “U”) are easier to recall than complex zigzags. Also, many users choose a pattern that spells out a letter or number, like “Z” (1-2-3-5-7-8-9) or “U” (1-2-3-5-6-8-9).

Another factor is the Android setup process itself: when you first set a pattern, the system shows you a 3×3 grid and encourages you to “draw an unlock pattern.” Without guidance, most people pick the first thing that comes to mind – often a straight line or a simple shape. Researchers have found that a significant percentage of users choose patterns that are 4 or 5 dots long, which are the minimum allowed, because they are faster to enter.

How to Choose a Stronger Pattern

If you want a pattern that is harder to guess, you need to avoid the common pitfalls. Here are practical tips based on the mathematics of pattern locks:

• Use more dots. A 9-dot pattern has far more possibilities than a 4-dot one. The simplified formula shows that a 9-dot pattern has 9 × 8^8 ≈ 60 million combinations, while a 4-dot pattern has only 9 × 8^3 = 4,608. Even with the skip rule, the gap is huge.
• Start in the middle. The center dot (dot 5) is the least common starting point. Starting there immediately makes your pattern less predictable.
• Change direction often. Patterns that go in one direction (like a straight line) are easy to guess. Use turns, diagonals, and changes in speed.
• Skip dots deliberately. The skip rule means that going from dot 1 to dot 9 (skipping dot 5) is allowed only if dot 5 is already used. Using skips makes the pattern harder to guess because it breaks the obvious straight-line flow.
• Don’t use a shape or letter. Avoid patterns that spell out your initials, a shape like a “Z” or “U”, or a number. These are the first things an attacker will try.
• Make it long but not too long. A 9-dot pattern is the most secure, but it can be slow to enter. A 7- or 8-dot pattern with varied directions is a good compromise.

Remember: the goal is to make the pattern hard for someone else to guess, not impossible for you to remember. A pattern that is too complex might be forgotten, leading you to lock yourself out.

Common Mistakes and Misconceptions

One common mistake is assuming that any 4-dot pattern is secure because there are “thousands” of combinations. In reality, most people choose from a tiny subset of those combinations – the ones that are easy to draw. An attacker who knows this can try the top 10 patterns and have a good chance of success.

Another misconception is that the pattern lock is as secure as a PIN. It is not. A 4-digit PIN has 10,000 combinations, while a 4-dot pattern has only 1,624 valid combinations (when the skip rule is applied). That makes a 4-dot pattern much weaker than a 4-digit PIN. Even a 5-dot pattern has only 7,152 combinations, still less than a 4-digit PIN.

People also often forget that the pattern leaves a smudge on the screen. The oily residue from your finger can reveal the path you drew, especially if you use the same pattern frequently. This is a real security risk that is often overlooked.

How Pattern Locks Compare to Other Methods

Pattern locks are one of several screen-lock options on Android. Here’s how they stack up:

• PIN (4-6 digits): A 4-digit PIN has 10,000 combinations, a 6-digit PIN has 1,000,000. PINs are generally more secure than patterns of the same length, and they don’t leave a smudge trail that reveals the code.
• Password (letters, numbers, symbols): Passwords can be extremely strong if long and random, but they are slower to type on a phone and can be forgotten.
• Biometrics (fingerprint, face): These are convenient and hard to guess, but they can be bypassed in some cases (e.g., a high-quality photo of your face, or a lifted fingerprint). They also don’t work if your hands are wet or gloved.
• Smart Lock (trusted devices/places): This is not a lock itself but a feature that keeps your phone unlocked in trusted situations. It can be a security risk if you trust a device that is stolen.

In practice, a long and complex pattern (8-9 dots) can be as secure as a 4-digit PIN, but it is harder to enter and leaves a smudge. For most users, a 6-digit PIN or a fingerprint is a better balance of security and convenience.

Safety and Privacy Considerations

Your pattern lock is the first line of defense for your personal data. If someone guesses your pattern, they can access your emails, messages, photos, and even financial apps. To protect yourself:

• Use a pattern that is not on the “most common” list. Avoid any pattern that starts in a corner, goes in a straight line, or forms a simple shape.
• Clean your screen regularly. Wipe off smudges after entering your pattern, especially in public.
• Enable “lock after 5 seconds” or a short timeout. This reduces the window for someone to pick up your phone and try patterns.
• Use “hide pattern” in settings. This prevents the pattern from being displayed as you draw it, so someone watching over your shoulder can’t see it.
• Consider using a PIN or password instead. If you have sensitive data, a 6-digit PIN is often a better choice than a pattern.

Remember that no lock is foolproof, but avoiding the most common patterns dramatically reduces your risk.

Frequently Asked Questions

What is the single most common pattern lock?

The most common pattern lock is 1-2-3-4-5-6-7-8-9 – a simple sweep across the grid from top-left to bottom-right. It is often used as a default or by users who want the quickest possible setup.

How many possible pattern locks are there?

Android’s pattern lock has 389,112 possible valid patterns when you consider the skip rule and the requirement that each dot can be used only once. This is far fewer than the 9! (362,880) that you might expect, because the skip rule eliminates many combinations.

Is a pattern lock more secure than a PIN?

It depends on the length. A 4-dot pattern has only 1,624 valid combinations, while a 4-digit PIN has 10,000. A 9-dot pattern has 389,112 combinations, which is more than a 4-digit PIN but less than a 6-digit PIN (1,000,000). So a long pattern can be secure, but a short pattern is not.

Can someone guess my pattern from the smudges on the screen?

Yes. The oily residue from your finger can leave a visible trail, especially on a clean screen. An attacker can often see the path you drew, especially if you use the same pattern frequently. Wiping the screen or using a matte screen protector can reduce this risk.

What should I do if I forget my pattern?

If you forget your pattern, you can try entering it incorrectly several times until you see the “Forgot pattern” option. You will then need to enter your Google account credentials or use your backup PIN (if you set one). If that fails, you may need to perform a factory reset, which erases all data on the phone.

Does the order of the dots matter?

Yes, the order is crucial. The pattern is a sequence of dots, and the system checks the exact order. Drawing the same shape but starting at a different dot will not unlock the phone.

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in start | Starting dot | 1-9 | 1 | 1
in length | Pattern length | dots | 4 | 4
out combos | Possible patterns with same start & length | - | 9 * 8^(length-1) | 0
out total | Total possible patterns of this length | - | 9 * 8^(length-1) | 0