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Solve equivalent ratios, simplify fractions, and scale proportions (A:B = C:D).
Solve for any missing variable in a proportion (A : B = C : D), simplify large ratios to lowest terms, and scale aspect ratios for design and video resolutions.
Unlike traditional web tools that send your personal data, uploaded photos, or sensitive text to remote cloud servers, our Ratio Calculator operates strictly inside your client browser sandbox. This guarantees high processing speeds without network throttling, and ensures your data privacy is completely preserved.
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Leave any ONE field empty to solve for it automatically.