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Image Resize Percentage Calculator

Calculate new image dimensions by percentage scale, or find what percentage a resize represents. Lock aspect ratio and preview the result instantly. Free, no signup.

18K uses this month Rating 4.9★ Aspect ratio lock Updated Apr 2026

CALCULATOR MODE

ORIGINAL DIMENSIONS

Width (px)

Height (px)

Lock aspect ratio

SCALE PERCENTAGE

Scale Percentage (%)

RESULT

960 × 540

at 50% scale

50%

Scale

960

New Width

540

New Height

2.07M

Orig. Pixels

0.52M

New Pixels

75%

Pixel Change

SIZE COMPARISON

Original

New

Scaled

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💡 PRO TIP

Scaling down by 50% reduces your pixel count by 75% — not 50% — because both dimensions shrink. For web use, aim for the smallest size that still looks sharp at the display resolution.

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