Camera calculator - Calculating the sensor diagonal, sensor height & width,sensor ratio and pixel size

The calculation of the sensor diagonal is helpful for selecting the right lens. The image circle of the lens must be at least as large as the sensor diagonal, otherwise vignetting effects will occour. Since many optical errors occur especially in the peripheral areas of the lens, an oversized image circle diameter is always ideal.

Sensor calculations based on sensor resolution and pixel size

Note: For simple calculations please select a value from the drop-down box! Enter your own values by selecting "User def.." in drop-down list!

Sensor size in pixels (x-direction):	User def. (px) 240 px 320 px 480 px 512 px 640 px 800 px 1024 px 1200 px 1280 px 1400 px 1600 px 2048 px 2452 px 3200 px 4096 px 4872 px 6144 px 8192 px 12288 px
Sensor size in pixels (y-direction):	User def. (px) 240 px 320 px 480 px 512 px 640 px 800 px 1024 px 1200 px 1280 px 1400 px 1600 px 2048 px 2452 px 3200 px 4096 px 4872 px 6144 px 8192 px 12288 px
Pixel size in µm:	User def. pixel size µm 1 µm 1.7 µm 2 µm 2.2 µm 3 µm 3.45 µm 4 µm 4.4 µm 5 µm 5.3 µm 6 µm 7 µm 8 µm 10 µm 14 µm 20 µm
Calculated sensor diagonal:
Calculated sensor length:
Calculated sensor height:
Calculated sensor ratio:

Sensor calculations based on sensor dimensions in millimeters

Note: For simple calculations please select a value from the drop-down box! Enter your own values by selecting "User def.." in drop-down list!

Sensor size in pixels x-direction:	User def. (px) 240 px 320 px 480 px 512 px 640 px 800 px 1024 px 1200 px 1280 px 1400 px 1600 px 2048 px 2452 px 3200 px 4096 px 4872 px 6144 px 8192 px 12288 px
Sensor size x-direction in mm:	User def. sensor X (mm) X=3.2mm (1/4") X=4.8 (1/3") X=5.76mm (1/2.5") X=6.4mm (1/2") X=7.04mm (1/1.8") X=8.8mm (2/3") X=12.8mm (1") X=17.3mm Four Thirds X=23.6mm APS-C Canon X=23.6mm APS-C Nikon X=36mm KB
Sensor size y-direction in mm:	User def. sensor Y (mm) Y=2.4mm (1/4") Y=3.6mm (1/3") Y=4.8mm (1/2.5") Y=4.8mm (1/2") Y=5.28mm (1/1.8") Y=6.6mm (2/3") Y=9.3mm (1") Y=6.6mm (2/3") Y=9.6mm (1") Y=13mm Four Thirds Y=14.8mm APS-C Canon Y=15.7mm APS-C Nikon Y=24mm KB
Calculated pixel size in µm:
Calculated sensor height in pixels:
Calculated sensor diagonal:
Calculated sensor ratio:

Further explanations and details on these calculations can be found in chapter "Sensor and pixel sizes" and "Image circle diameter".