Easily scale images for art, photography, and design projects. Input original dimensions and let this tool calculate missing values for you.
Graphic Proportion Calculator by Brian Rahming
Editor's Choice
π§ Utilities
4.0(6 ratings)
Free
Best apps like Viewgrader: Proportional Scale Calculator
45+ similar apps compared and reviewed
4.0 avg rating
9 free apps
Updated July 2026
Whether you want more options like Viewgrader or a completely different take on the same concept, our curated list of 45+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.
Top Alternatives to Viewgrader
4.5(13 ratings)
$1.99
Easily calculate new image dimensions while preserving aspect ratio to avoid distortion. This tool helps graphic designers, photographers, and professionals accurately resize images for various needs, including blueprinting and sign making.
0.0(0 ratings)
Free
Easily calculate aspect ratios for images and videos. Supports input formats like width x height or x:y ratios. A simple tool for content creators and designers.
More apps like Viewgrader
4
Proportion Solver
by Ryan Ashcraft
Free
This utility helps solve proportions, which are essential for calculating values based on numerical relationships. It's a straightforward tool for various conversion and scaling needs.
Solve proportionsCalculate based on numerical relationshipsUnit conversions
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PPI Guru - Calc PPI Easily
Check PPI of your devices
Free
Easily calculate the Pixels Per Inch (PPI) for any screen, from phones to monitors. Input screen dimensions and diagonal size to get an instant PPI result and determine if it qualifies as a Retina Display. You can also search for device information online and save your calculations.
Automatic PPI calculationSearch device information onlineRetina Display indicator
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free6
Aspect Ratio X Calc
A : B = C : X To find X
Free
This utility calculates unknown values in aspect ratios, useful for resizing images and clipping. It simplifies the process of determining proportional dimensions for various visual applications.
Calculate unknown aspect ratio valuesInput numbers for calculationResizing images
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Capabilities & Speed Test
by Matthew Raftery
Free
This utility app provides detailed information about your mobile device. It includes a speed test, displays RAM usage, screen resolution, and other hardware specifications.
SNATCO Mobile Speed TestTotal and available RAM checkScreen size and DPI display
π§ Utilities
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free with in-app purchases8
Screen Size
by Yu-Mao Feng
Free
This utility app helps UI designers and engineers calculate screen dimensions. Input pixel dimensions and diagonal size to get screen size in inches/cm, resolution in PPI, and aspect ratios.
Calculate screen size in inch/cmCalculate resolution in PPIDisplay common aspect ratios (full version)
π§ Utilities
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free9
PPI Calc - PPI Calculator
by Fausto Ristagno
Free
Calculate pixels per inch (PPI) for any screen, along with aspect ratio and screen measurements. View data in inches or centimeters. Includes presets for standard resolutions and common devices.
PPI calculationAspect ratio displayScreen height and width
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Retinal
Check retina capability
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