Ratio Calculator
Find an exact aspect ratio, calculate proportional dimensions, or fit content into a box.
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Your dimensions
Width and height are independent. Presets below replace both values.
Quick presets
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Common resolutions
Popular device sizes
Your ratio
Identified ratio
16:9
1920 × 1080 px · Landscape
Perfect — the dimensions match the ratio exactly.
Ratio, megapixels & orientation
- Identified ratio
- 16:9
- Decimal (approx.)
- 1.7778
- Megapixels (approx.)
- 2.07 MP
- Orientation
- Landscape
More sizes at 16:9
Common whole-pixel sizes for this ratio. Use or copy any available row.
320 × 180 Exact 0.06 MP | |
426 × 240 Rounded 0.10 MP | |
480 × 270 Exact 0.13 MP | |
640 × 360 Exact 0.23 MP | |
800 × 450 Exact 0.36 MP | |
854 × 480 Rounded 0.41 MP | |
960 × 540 Exact 0.52 MP | |
1024 × 576 Exact 0.59 MP | |
1280 × 720 Exact 0.92 MP | |
1366 × 768 Rounded 1.05 MP | |
1600 × 900 Exact 1.44 MP | |
1920 × 1080 Current Exact 2.07 MP | |
2048 × 1152 Exact 2.36 MP | |
2560 × 1440 Exact 3.69 MP | |
3200 × 1800 Exact 5.76 MP | |
3840 × 2160 Exact 8.29 MP | |
5120 × 2880 Exact 14.75 MP | |
7680 × 4320 Exact 33.18 MP |
Reference & help Common aspect ratios and practical sizing tips.
Ratio reference
16:9 Widescreen
4:3 Standard
1:1 Square
3:2 Photography
21:9 Ultrawide
16:10 MacBook
32:9 Super Ultrawide
5:4 Classic Monitor
19.5:9 Modern Smartphone
20:9 Tall Smartphone
18:9 Smartphone
19:9 iPhone 14/15
9:16 Short Video
4:5 Instagram Portrait
3:1 Social Header
1.91:1 Link Preview
5:2 LinkedIn Banner
2.35:1 Cinemascope
2.39:1 Anamorphic
1.85:1 Cinema Standard
2.76:1 Ultra Panavision
7:5 Fine Art Print
8:10 Portrait Print
1.41:1 A-Series Paper
1.29:1 US Letter
1.75:1 Business Card
1.55:1 Credit Card
1.618:1 Golden Ratio
1.414:1 Silver Ratio
2.236:1 Pentagon Ratio
Tips & usage
- Common resolutions Resolution and device presets replace both dimensions and identify their exact ratio.
- Common ratios In Calculate, changing the target ratio preserves width and recalculates height.
- Matching sizes Unavailable marks a proportional size outside the safe whole-pixel range.