There's really no need for a paragraph on why photo dimensions are important. Here’s the information you came for:
- Company Logo
Recommended Size: 268 x 268
Aspect Ratio: 1:1
Desktop Display: 128 x 128
- Company Banner
Recommended Size: 1128 x 191
Aspect Ratio: 47:8
Desktop Display: 1168 x 197
- Personal Photo
Recommended Size: 400 x 400
Apect Ratio: 1:1
Desktop Display 152 x 152
- Personal Cover Image
Recommended Size: 1584 x 396
Aspect Ratio: 4:1
Desktop Display: 792 x 128
- Shared Image:
1200 x 627
Aspect Ratio: 1.91:1
Desktop Display: 552 x 289
- Profile Picture
Recommended Size: 200 x 200
Aspect Ratio: 1:1
Desktop Display: 170 x 170
- Facebook Cover Photo
Recommended Size: 820 x 360
Aspect Ratio: 26:10
Desktop Display: 820 x 312
- Shared Image & Shared Link Thumbnail
Recommended Size: 1200 x 630
Aspect Ratio: 40:21
Desktop Display: 500 x 261
- Profile Picture
Recommended Size: 320 x 320
Aspect Ratio: 1:1
Desktop Display: 110 x 110
- Feed / Grid Photo
Recommended Size:
Square: 1080 x 1080
Landscape: 1080 x 680
Portrait: 1080 x 1350
Aspect Ratio:
Square 1:1
Landscape: 1.91:1
Portrait: 4:5
Desktop Display:
Square: 600 x 600
Landscape: 600 x 337
Portrait: 480 x 600
- Profile Photo
Recommended Size: 400 x 400
Aspect Ratio: 1:1
Desktop Display: 134 x 134
- Banner
Recommended Size: 1500 x 500
Aspect Ratio: 4:1
Desktop Display: 598 x 199
- Timeline Photo
Recommended Size: 1200 x 675
Aspect Ratio: 16:9
Desktop: 600 x 335
- Profile Photo
Recommended Size: 250 x 250
Apect Ratio: 1:1
- Cover Photo
Recommended Size: 1080 x 608
Aspect Ratio: 135:76
- Google Posts
Recommended Size: 1200 x 900
Aspect Ratio: 4:3