ToolGrid AIAspect Ratio Calculator
Simplify an image ratio and calculate a matching height for a new width.
Runs entirely in your browser — your selected files are not uploaded by this tool. Device-provided speech voices may use online services.
About this free aspect ratio calculator tool
Simplify an image ratio and calculate a matching height for a new width. Calculators answer a defined arithmetic question using the values you supply. Keep units and currencies consistent, choose the correct starting amount and inspect the assumptions before using a result. Estimates do not replace a lender quotation, an official tax rate, a medical assessment or a jurisdiction-specific deadline rule.
A practical example
A concrete example uses original width: 1920; original height: 1080; new width: 1280. The result is Aspect ratio: 16:9 Matching height: 720 pixels.
Before you rely on the result
The simplified ratio uses positive integer dimensions. Matching height may be fractional; choose a suitable pixel rounding rule for your editor.