How to Use Compass on iPhone: A Simple Guide

This guide shows you how to use the built-in Compass app on your iPhone to find direction, check your bearing, and even use it with Maps. You’ll learn how to calibrate it, read the interface, and troubleshoot common issues. No special equipment is needed—just your iPhone with location services enabled.

What You’ll Need

An iPhone with the Compass app (it’s preinstalled on all models).
Location Services turned on for the Compass app (Settings > Privacy & Security > Location Services > Compass).
A clear view of the sky or at least an open area away from strong magnetic interference (like magnets, metal objects, or electronics).

Step-by-Step

Open the Compass app. Find it on your Home Screen or in the Utilities folder. The icon is a white compass needle on a black background.
Calibrate if prompted. If the app asks you to “Calibrate,” tilt your iPhone in a figure-eight motion until the calibration screen disappears. This aligns the internal magnetometer with the Earth’s magnetic field.
Read the bearing. The top of the screen shows the direction you’re facing in degrees (0° = North, 90° = East, 180° = South, 270° = West). The red needle always points north.
Hold your iPhone flat. Keep the phone level, like a compass in your palm. Tilt it too much and the bearing may become inaccurate.
Use the crosshair. The white crosshair in the center helps you aim at a distant object to get its bearing. Align the crosshair with the object and read the number at the top.
Lock a bearing. Tap the compass face to lock the current bearing. A red band will appear, showing you the difference between the locked bearing and your current heading. Tap again to unlock.
Check your coordinates. Below the compass, you’ll see your latitude and longitude. Tap the coordinates to copy them or open them in Maps.
Use with Maps. While in the Compass app, tap the coordinates to open Maps at that exact location. Or, in Maps, tap the location arrow to show your heading (the compass icon appears in the top-right corner).
Switch between True North and Magnetic North. Go to Settings > Compass > and toggle “Use True North” on or off. True North uses geographic north; Magnetic North uses the Earth’s magnetic pole. For most navigation, True North is recommended.

Common Mistakes

Not calibrating. Skipping the calibration step leads to inaccurate readings. Always perform the figure-eight motion when prompted.
Holding the phone at an angle. The compass works best when the phone is flat. Holding it vertically or tilted can cause errors.
Being near magnets. Phone cases with magnets, magnetic clips, or even metal objects can distort the magnetic field and skew your readings.
Confusing True North and Magnetic North. The difference can be several degrees, which matters for precise navigation. Know which one you’re using.
Forgetting to enable Location Services. Without location access, the compass may not work at all or show incorrect coordinates.

Tips

Calibrate regularly. Even if not prompted, give your phone a quick figure-eight motion before important readings.
Use the crosshair for accurate bearings. Instead of guessing from the needle, align the crosshair with a landmark to get a precise degree.
Combine with Maps. Use the compass to orient yourself, then switch to Maps to navigate. The compass in Maps shows your heading as a blue cone.
Keep your phone away from other electronics. Laptops, speakers, and even other phones can interfere with the magnetometer.
Use the lock feature for hiking. Lock a bearing to a distant peak, then follow the red band to stay on course.

Troubleshooting

Compass not showing a reading: Make sure Location Services is enabled for Compass in Settings. If it still doesn’t work, restart your iPhone.
Inaccurate readings: Move away from metal objects, magnets, and electronic devices. Recalibrate by moving the phone in a figure-eight pattern.
Compass app is missing: It might be hidden in a folder or on a different Home Screen page. Swipe down and search for “Compass.” If it’s truly gone, you can reinstall it from the App Store (it’s free).
Coordinates show “–“: Your iPhone can’t get a GPS fix. Move to an open area with a clear view of the sky.
Compass points the wrong way: Check if “Use True North” is on or off—both are valid, but the needle will point to different norths. Also, make sure your phone is flat.

Frequently Asked Questions

Why does my iPhone compass need calibration?

The compass uses a magnetometer that can be affected by magnetic fields. Calibration resets it to the Earth’s magnetic field, ensuring accurate readings.

What’s the difference between True North and Magnetic North?

True North is the geographic North Pole. Magnetic North is where the Earth’s magnetic field points. They differ by several degrees, and the difference varies by location. For most purposes, True North is more consistent.

Can I use the compass without an internet connection?

Yes, the compass works offline. It relies on GPS and the magnetometer, not cellular data or Wi-Fi.

Does the compass app work on all iPhone models?

Yes, the Compass app is available on all iPhones, including the latest models. Older models may have slightly different interfaces but the core functionality is the same.

How do I share my location from the compass?

Tap the coordinates at the bottom of the screen. A menu will appear with options to copy them or open them in Maps. You can then share the location from Maps.

Why is my compass pointing to the wrong direction?

This is usually due to magnetic interference or not being calibrated. Move away from magnets and metal, recalibrate, and ensure the phone is held flat.

General steps for current mainstream versions; menus can differ by device and version. See the disclaimer or report an error.

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