Camera Sensor Size Comparison

Summary

This tool lets you compare any two camera sensor formats side-by-side. Choose from Full Frame, APS-C (Canon or Nikon/Sony), Micro Four Thirds, 1-inch, 1/1.7-inch, 1/2.3-inch, and Medium Format presets — or enter custom dimensions. You get exact width, height, diagonal, crop factor, and area for each sensor, plus a to-scale overlay diagram showing the size difference visually.

How it works

1. Select a sensor format from the first dropdown (Sensor A).
2. Select a second sensor format from the dropdown (Sensor B) to compare against.
3. The tool displays each sensor's width, height, diagonal, crop factor, and area.
4. A to-scale visual diagram overlays both sensors so you can see the size difference at a glance.
5. The area ratio shows how many times larger or smaller one sensor is relative to the other.
6. Switch to custom mode to enter any sensor dimensions in millimeters.

Use cases

• Decide between a Full Frame and APS-C body before buying.
• Understand how much smaller a Micro Four Thirds sensor is compared to Full Frame.
• Check whether a 1-inch compact sensor is adequate for your needs vs a larger format.
• Compare medium format sensors against Full Frame.
• Explain sensor size differences to photography students or clients.
• Verify crop factor and area specs when researching a camera upgrade.

Frequently Asked Questions