Calculate aspect ratios, resize proportionally and explore common resolutions
Enter the original dimensions and one new dimension to calculate the other.
| Name | Resolution | Aspect Ratio | Megapixels | Use |
|---|---|---|---|---|
| SD (480p) | 640 x 480 | 4:3 | 0.31 MP | |
| HD (720p) | 1280 x 720 | 16:9 | 0.92 MP | |
| Full HD (1080p) | 1920 x 1080 | 16:9 | 2.07 MP | |
| 2K (QHD) | 2560 x 1440 | 16:9 | 3.69 MP | |
| 4K (UHD) | 3840 x 2160 | 16:9 | 8.29 MP | |
| 8K (UHD) | 7680 x 4320 | 16:9 | 33.18 MP | |
| Ultrawide | 2560 x 1080 | 21:9 | 2.76 MP | |
| Super Ultrawide | 3440 x 1440 | 21:9 | 4.95 MP | |
| iPhone (Portrait) | 1170 x 2532 | 9:19.5 | 2.96 MP | |
| Instagram Post | 1080 x 1080 | 1:1 | 1.17 MP | |
| Instagram Story | 1080 x 1920 | 9:16 | 2.07 MP |
Aspect Ratio Calculator is a powerful free online tool that calculates dimensions for any aspect ratio including 16:9, 4:3, and custom. Whether you are a student, professional, or everyday user, this tool helps you get results instantly without any signup or download.
The Aspect Ratio Calculator is a free online tool available on AllToolHub that calculates dimensions for any aspect ratio including 16:9, 4:3, and custom. It runs directly in your browser, ensuring your data stays private and secure. No registration, no downloads - just open and use.
Enter width or height and aspect ratio. The matching dimension is calculated. Everything is processed quickly, giving you instant results. The tool is designed to be simple and intuitive, so anyone can use it without technical knowledge.
The Aspect Ratio Calculator is a free online tool on AllToolHub that calculates dimensions for any aspect ratio including 16:9, 4:3, and custom. It is completely free to use with no signup required.
Yes, the Aspect Ratio Calculator is 100% free. There are no hidden charges, no signup required, and no usage limits. Just open and start using it.
Enter width or height and aspect ratio. The matching dimension is calculated.
Absolutely. Most processing happens directly in your browser. We do not store, share, or sell your data. Your privacy is our priority.
Yes, the Aspect Ratio Calculator is fully responsive and works perfectly on smartphones, tablets, and desktop computers. No app download needed.