1024x768 aspect ratio: 4:3 (1.333:1)
1024 × 768 reduces to 4:3. The greatest common divisor of 1024 and 768 is 256, so 1024 ÷ 256 = 4 and 768 ÷ 256 = 3. That is exactly 4:3.
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At a glance
4:3
1024 × 768 is exactly 4:3.
- Decimal
- 1.333:1
- Nearest named ratio
- 4:3, exact
- Orientation
- Landscape
- Pixels
- 786,432
- Megapixels
- 0.79
- Greatest common divisor
- 256
How 1024 × 768 reduces
- 1024 = 1 × 768 + 256
- 768 = 3 × 256 + 0
The last divisor, 256, is the greatest common divisor, so 1024 × 768 reduces to 4:3. The method by hand is on the calculator page.
Crop or pad 1024 × 768 to common ratios
Whole-pixel downscales
| Divide by | Size | Whole pixels | Nearest whole size |
|---|---|---|---|
| ÷2 | 512 × 384 | yes | same |
| ÷3 | 341.33 × 256 | no | 341 × 256, 0.098% off 4:3 |
| ÷4 | 256 × 192 | yes | same |
| ÷5 | 204.80 × 153.60 | no | 205 × 154, 0.16% off 4:3 |
| ÷6 | 170.67 × 128 | no | 171 × 128, 0.2% off 4:3 |
| ÷8 | 128 × 96 | yes | same |
| ÷10 | 102.40 × 76.80 | no | 102 × 77, 0.65% off 4:3 |
Other listed sizes at 4:3
| Size | Scale from 1024 × 768 | Whole-number scale | Pixel count |
|---|---|---|---|
| 640 × 480 | 0.625 | no | 0.391× |
| 1024 × 768this page's size | 1 | - | 1× |
| 1280 × 960 | 1.25 | no | 1.563× |
| 1440 × 1080 | 1.406 | no | 1.978× |
| 1920 × 1440 | 1.875 | no | 3.516× |
Facts about 1024 × 768
- 1024 × 768 is exactly 4:3: 256 × 4 by 256 × 3.
- 1024 × 768 divides into whole pixels by 2, 4 and 8; ÷3 gives 341.33 × 256, which is not whole pixels.
- Among the other listed 4:3 sizes, 1440 × 1080 (×1.406), 640 × 480 (×0.625), 1920 × 1440 (×1.875) and 1280 × 960 (×1.25) are not whole-number scales of it.
- Turned on its side, 1024 × 768 becomes 768 × 1024 (3:4).
- Cropped to 9:16, 1024 × 768 keeps 42.2% (432 × 768); cropped to 16:9 it keeps 75% (1024 × 576).
- 1024 × 768 is 786,432 pixels (0.79 MP), 0.38 times the pixel count of 1920 × 1080.
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Aspect ratio 4:3 (1.333:1). Exact match for 4:3.
Aspect ratio
4:3
1.333:1
Exact match for 4:3.
- Width ÷ height
- 1.3333
- Height ÷ width
- 0.75
- Shape
- landscape
Your numbers, worked
gcd(1024, 768) = 256
1024 ÷ 256 = 4
768 ÷ 256 = 3
1024 ÷ 768 = 1.3333
Show how the gcd was found
- 1024 = 1 × 768 + 256
- 768 = 3 × 256 + 0
Divide the larger side by the smaller, then divide the last divisor by the remainder until the remainder is 0. The last divisor is the gcd.
What each ratio would cut from 1024 × 768
The largest centred crop at each ratio, best fit first. Crop rather than stretch.
| Ratio | Fit | Crop to | Lost |
|---|---|---|---|
| 4:3 | Exact | 1024 × 768 | 0% |
| 5:4 | Trim width | 960 × 768 | 6.25% |
| 3:2 | Trim height | 1024 × 683 | 11.1% |
| 16:10 | Trim height | 1024 × 640 | 16.7% |
| 1:1 | Trim width | 768 × 768 | 25% |
| 16:9 | Trim height | 1024 × 576 | 25% |
| 1.91:1 | Trim height | 1024 × 536 | 30.2% |
| 2:1 | Trim height | 1024 × 512 | 33.3% |
| 4:5 | Trim width | 614 × 768 | 40% |
| 21:9 | Trim height | 1024 × 439 | 42.8% |
| 3:4 | Trim width | 576 × 768 | 43.8% |
| 2:3 | Trim width | 512 × 768 | 50% |
| 9:16 | Trim width | 432 × 768 | 57.8% |
| 32:9 | Trim height | 1024 × 288 | 62.5% |
Solve the missing side
Pick a ratio, then enter the side you know.
Height is 768. Size 1024 by 768 pixels.
Size at 4:3
1024 × 768
Height solved, in pixels.
Your numbers, worked
H = W × 3 ÷ 4 = 1024 × 3 ÷ 4 = 768
Whole number, so no rounding is needed.
Pixel-exact: a 4:3 size needs the width to be a multiple of 4, and 1024 is 256 × 4.
Questions
What aspect ratio is 1024x768?
1024 × 768 is 4:3 (1.333:1). Dividing both sides by their greatest common divisor, 256, gives 4 and 3. That is exactly 4:3.
How do I resize 1024x768 without distortion?
Keep the ratio at 4:3: new height = new width × 3 ÷ 4. Dividing both sides by 2, 4 or 8 keeps whole pixels, for example 128 × 96 at ÷8.
What is 1024x768 cropped to 9:16?
A centered 9:16 crop of 1024 × 768 is 432 × 768, which keeps 42.2% of the image. Padding it to 9:16 instead gives a 1024 × 1820 canvas with 1,052 px of bars. That canvas is rounded, not exactly 9:16: the exact padded side would be 1820.44 px tall. The smallest exact 9:16 canvas around it is 1026 × 1824.
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