June 7, 2026 · 4 min read
Free Aspect Ratio Calculator (Resize Without Distortion)
Calculate aspect ratios and resize images or videos while preserving proportions. Free, no signup.
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Want a 1920×1080 image scaled to 1280px wide? You need height = 1280 × 1080 ÷ 1920 = 720.
Our Aspect Ratio Calculator does that math and shows the simplified ratio (e.g. 16:9). For pure ratio simplification use Ratio Calculator.
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