Resolution Converter

Standard Resolution Reference

Common Aspect Ratios

Related Calculators

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Frequently Asked Questions

What is display resolution?

Display resolution refers to the number of pixels on a screen, expressed as width x height (e.g., 1920 x 1080). It determines the sharpness and detail of the displayed image. Higher resolutions mean more pixels, resulting in clearer, more detailed images.

What is the difference between 720p, 1080p, 4K, and 8K?

720p (HD) = 1280 x 720 pixels (~0.9 MP). 1080p (Full HD) = 1920 x 1080 pixels (~2.1 MP). 4K UHD = 3840 x 2160 pixels (~8.3 MP). 8K UHD = 7680 x 4320 pixels (~33.2 MP). Each step doubles both width and height, quadrupling the total pixels.

How do I calculate the aspect ratio from resolution?

Divide the width by the height and simplify using the greatest common divisor (GCD). For example, 1920 / 1080 = 1.778 = 16/9. You can also divide both numbers by their GCD: GCD(1920, 1080) = 120, so 1920/120 : 1080/120 = 16:9.

How do I calculate the total number of pixels?

Multiply width by height. For example, 1920 x 1080 = 2,073,600 pixels. For 4K (3840 x 2160): 3840 x 2160 = 8,294,400 pixels. For 8K (7680 x 4320): 7680 x 4320 = 33,177,600 pixels.

How do I calculate megapixels from resolution?

Megapixels (MP) = (width x height) / 1,000,000. For example, 1920 x 1080 = 2,073,600 / 1,000,000 = 2.07 MP. A 12 MP camera produces images approximately 4000 x 3000 pixels (depending on the aspect ratio).

What is the best resolution for gaming?

1080p is the most common gaming resolution, offering a good balance between visual quality and performance (higher frame rates). 1440p (WQHD) is popular for competitive gaming with high refresh rate monitors. 4K offers the best visual quality but requires powerful hardware.

What is the difference between 4K UHD and 4K DCI?

4K UHD (Ultra High Definition) is 3840 x 2160 pixels (16:9 aspect ratio), used for consumer TVs and monitors. 4K DCI (Digital Cinema Initiatives) is 4096 x 2160 pixels (17:9 aspect ratio), used in professional digital cinema projectors.

How many pixels is 1080p?

1080p (Full HD) has 1,920 x 1,080 pixels, totaling 2,073,600 pixels (approximately 2.07 megapixels). The "p" stands for progressive scan, meaning all lines are drawn sequentially for each frame, providing a smoother image than interlaced (i) formats.

How many pixels is 4K?

4K UHD has 3,840 x 2,160 pixels, totaling 8,294,400 pixels (approximately 8.29 megapixels). 4K DCI has 4,096 x 2,160 pixels, totaling 8,847,360 pixels (approximately 8.85 megapixels). 4K has four times the pixels of 1080p.

How many pixels is 8K?

8K UHD has 7,680 x 4,320 pixels, totaling 33,177,600 pixels (approximately 33.18 megapixels). 8K has four times the pixels of 4K and sixteen times the pixels of 1080p. 8K content is still limited as of 2024.

What is the aspect ratio of 1920x1080?

1920x1080 has an aspect ratio of 16:9. This is the standard widescreen format used by HDTV, most computer monitors, and streaming video. It replaced the older 4:3 format (like 1024x768) as the dominant display format.

What is the aspect ratio of 3840x2160?

3840x2160 (4K UHD) has an aspect ratio of 16:9, the same as 1080p. This means 4K content displays properly on 1080p screens (scaled down) and vice versa. 4096x2160 (4K DCI) has a 17:9 aspect ratio, slightly wider.

What is the most common aspect ratio for monitors?

16:9 is the most common aspect ratio for monitors and TVs, used for virtually all modern content including video, games, and web browsing. 16:10 is popular on some productivity monitors for extra vertical space. 21:9 (ultrawide) is used for immersive gaming and multitasking.

What is the difference between 16:9 and 16:10 aspect ratios?

16:9 (1.778:1) is wider and shorter, standard for movies and HDTV. 16:10 (1.6:1) is slightly taller, providing more vertical screen space for productivity tasks like word processing, coding, and web browsing. 16:10 was common on older monitors.

What is an ultrawide monitor resolution?

Ultrawide monitors typically use a 21:9 aspect ratio. Common ultrawide resolutions: 2560x1080 (UWHD), 3440x1440 (WQHD ultrawide), and 5120x2160 (5K2K ultrawide). Super ultrawide (32:9) monitors use 3840x1080 or 5120x1440.

How do I calculate the width from aspect ratio and height?

Width = height x aspect_ratio_width / aspect_ratio_height. For example, to find the width for 1080p height at 16:9: 1080 x 16 / 9 = 1920. To find height from width: height = width x aspect_ratio_height / aspect_ratio_width.

What is the resolution of a standard movie theater?

Standard digital cinema uses 2K DCI (2048 x 1080) or 4K DCI (4096 x 2160) projectors. IMAX uses a variety of resolutions, with IMAX Digital being 2K or 4K per projector (dual projection for 3D). 70mm IMAX film has an equivalent resolution estimated at 8K-12K.

What resolution is the human eye?

The human eye does not have a fixed resolution like a digital sensor. Estimates vary, but the equivalent resolution of human vision is often cited as 576 megapixels (based on the eye's field of view and the density of cone cells in the fovea). However, the brain processes visual information differently than a camera.

How do I resize an image to a specific resolution while maintaining aspect ratio?

Divide the target width by the original width to get the scale factor. Multiply the original height by the same factor. For example, resizing a 4000x3000 image to 1920 wide: scale = 1920/4000 = 0.48, new height = 3000 x 0.48 = 1440. Result: 1920x1440.

What is the difference between interlaced and progressive scan?

Interlaced (i) draws every other line in alternating passes (e.g., 1080i = 540 lines per pass), which can cause flickering on fast-moving content. Progressive (p) draws all lines sequentially for each frame (e.g., 1080p = all 1080 lines), providing smoother motion.

What is the resolution of VR headsets?

VR headset resolutions have improved significantly. The Meta Quest 3 has 2064 x 2208 pixels per eye. The Apple Vision Pro has 3660 x 3200 pixels per eye. The PSVR2 has 2000 x 2040 per eye. Higher resolution in VR is critical for reducing the screen-door effect.

What resolution should I use for YouTube video?

YouTube supports resolutions from 240p up to 8K. Recommended upload resolutions: 1080p (1920x1080) for standard HD, 1440p (2560x1440) for higher quality, and 4K (3840x2160) for best quality. YouTube compresses video heavily, so higher resolutions look better even on smaller screens.

How does pixel density (PPI) relate to resolution?

PPI (pixels per inch) = resolution width / screen width in inches. A 27-inch 4K monitor has about 163 PPI, while a 27-inch 1080p monitor has about 82 PPI. Higher PPI at the same screen size means sharper images. For a given resolution, smaller screens have higher PPI.

What resolution is 1440p?

1440p (also called QHD or WQHD) has a resolution of 2560 x 1440 pixels (approximately 3.69 megapixels). It is often called "2K" (though technically 2K DCI is 2048x1080). 1440p is popular for gaming monitors as it offers a significant improvement over 1080p.

What is the resolution of standard definition (SD) TV?

Standard definition (SD) typically refers to 480p (640 x 480 for 4:3 or 854 x 480 for 16:9) in North America, or 576p (720 x 576 for 4:3 or 1024 x 576 for 16:9) in PAL regions. SD has been largely replaced by HD (720p and above).

How do I convert a 4:3 video to 16:9?

To convert 4:3 to 16:9, you can: (1) crop the top and bottom (losing some image), (2) stretch horizontally (distorting the image), (3) add black bars on the sides (pillarboxing), or (4) use intelligent reframing that pans across the 4:3 image to fit 16:9.

What is the best resolution for photo printing?

For high-quality photo prints, use 300 DPI (dots per inch). This means a 4x6 print needs 1200x1800 pixels (2.16 MP). An 8x10 print needs 2400x3000 pixels (7.2 MP). For large prints viewed from a distance, 150-200 DPI is often acceptable.

What is the resolution of a smartphone camera?

Modern smartphone cameras range from 12 MP to 200 MP. Typical resolutions: 12 MP = 4000 x 3000 pixels, 48 MP = 8000 x 6000 pixels, 108 MP = 12000 x 9000 pixels. Higher megapixels allow more cropping flexibility but do not always mean better image quality.

How do I calculate the required resolution for a print of a given size?

Multiply the print dimensions (inches) by the desired DPI. For a 20x30 inch poster at 150 DPI: 20 x 150 = 3000 pixels wide, 30 x 150 = 4500 pixels tall. Total: 13.5 megapixels. For 300 DPI, you would need 6000 x 9000 pixels (54 MP).

What is the resolution of a typical smartphone screen?

Smartphone screen resolutions vary widely. Budget phones: 720p (HD, ~1560x720). Mid-range: 1080p (FHD+, ~2400x1080). Flagship: 1440p (QHD+, ~3120x1440). Some foldables and premium models have even higher resolutions. The iPhone 15 Pro Max has 2796 x 1290 (460 PPI).

What resolution should I use for social media images?

Instagram square posts: 1080x1080 px. Instagram portrait: 1080x1350 px. Facebook cover photo: 820x312 px. Twitter header: 1500x500 px. LinkedIn cover: 1584x396 px. YouTube thumbnail: 1280x720 px. Always use high-resolution source images and export at these exact dimensions.