Image Size Converter
Converts and resizes image dimensions across units, helping web, print, and app assets meet exact size specifications quickly.
Tool coming soon!
We're working hard to get this tool ready for you.
Worked Example & Common Values
Below is a sample worked calculation demonstrating how Image Size Converter processes input data instantly inside your browser.
Birth date: Jan 15, 1995, Target date: Oct 20, 2023
Chronological Age: 28 Years, 9 Months, 5 Days (10,505 days elapsed)
Build Your Own Custom Web Calculator in Seconds
Type what tool or calculator you need below. Our AI will build it instantly for your site.
About This Tool
Conceptual workflow: inputs are converted to a common pixel space using a DPI assumption or an explicit DPI value. The tool then applies one of three sizing strategies: fit maintains aspect ratio within the target box; crop scales to fill the target area and crops excess; pad scales to fit and adds transparent borders to reach exact target dimensions. Outputs include the final dimensions in the chosen unit and the corresponding pixel dimensions. Example: input 1200 px × 800 px, target unit in, with target_width 300 and target_height 200, using fit yields final 300 × 200 px and a scale of 0.25. This keeps asset dimensions consistent across contexts.
Audience benefits: web and app developers, designers, and content managers can quickly align assets to multi-platform specs without manual calculations. The tool also provides pixel-perfect equivalents to support automation and asset pipelines.
Unique value: it abstracts unit conversions, applies standard sizing strategies, and outputs both user-facing dimensions and precise pixel equivalents for seamless integration into workflows.
How to Use
- Provide inputs: source_width, source_height, source_unit, target_unit, and method.
- If you know a fixed target box, set target_width and target_height accordingly.
- Optionally adjust dpi for unit conversions (default
- .
- Run calculation to obtain final dimensions and scale.
- Use the final width/height in your chosen unit and the pixel equivalents in your asset pipeline.
Frequently Asked Questions
Find Quick Answers
Which units are supported?
What is the difference between fit, crop, and pad?
Will this modify the actual image file?
Can I reuse results for batch images?
Need to run multiple calculations?
Create a free account today to unlock unlimited daily runs, access advanced parameters, save your history, and request custom features.
Related Tools
Other useful calculators and utilities you might like
Spotify to MP3 Converter
Convert Spotify tracks and playlists to MP3 format instantly with our free online converter.
Road Distance Calculator
Calculate the driving distance and travel time between two addresses with our free online road dista...
Your Feedback Matters
Help Us to Improve
Norwegian
Danish
German
English
Spanish
French
Italian
Dutch
Portuguese
Swedish
Hebrew
Arabic