| Region | Standard | mm | inches | pixels @ 300 DPI | |
|---|---|---|---|---|---|
| United States / Canada | ANSI | 88.9 x 50.8 | 3.5 x 2 | 1050 x 600 | |
| Europe (ISO) | ISO 7810 ID-1 | 85 x 55 | 3.346 x 2.165 | 1004 x 650 | |
| United Kingdom | ISO | 85 x 55 | 3.346 x 2.165 | 1004 x 650 | |
| Japan | JIS | 91 x 55 | 3.582 x 2.165 | 1075 x 650 | |
| China | GB/T | 90 x 54 | 3.543 x 2.126 | 1063 x 638 | |
| India | Common | 89 x 51 | 3.504 x 2.008 | 1051 x 602 | |
| Australia / New Zealand | Common | 90 x 55 | 3.543 x 2.165 | 1063 x 650 | |
| Brazil | ABNT | 90 x 50 | 3.543 x 1.969 | 1063 x 591 | |
| South Korea | KS | 90 x 50 | 3.543 x 1.969 | 1063 x 591 | |
| Scandinavia | Common | 90 x 55 | 3.543 x 2.165 | 1063 x 650 | |
| Iran | Common | 85 x 48 | 3.346 x 1.890 | 1004 x 567 | |
| Hong Kong / Taiwan | Common | 90 x 54 | 3.543 x 2.126 | 1063 x 638 |
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About Card Sizes
Card Sizes is a free, browser-based utility designed to make developer and design work as quick and frictionless as possible. Processing runs locally in your browser using modern Web APIs. Nothing is uploaded, nothing is logged, and there is no quota to worry about for casual use. It pairs naturally with the other developer utilities here when you need to chain a quick workflow.
When you'd reach for Card Sizes
You're on a public or shared machine and don't want to leave traces of what you're working on.
Travelers, contractors, anyone working from a friend's computer.
Nothing is uploaded, nothing persists if you're not signed in.
You're cleaning up a folder of files that accumulated over a project and need to standardize them.
Designers, writers, and developers wrapping up deliverables.
Drop each file in, copy the output, move on.
You need to handle a one-off task right before a meeting and don't have time to install anything.
Anyone working remotely on a borrowed or restricted machine.
Open the page, get the result, paste it into your doc — under a minute.
You're hitting the daily limit of a paid SaaS and need a backup option for a single quick job.
Marketers and ops people whose primary tool is metered.
Stay productive without burning credits.
Frequently asked about Card Sizes
- Does Card Sizes work on mobile?
- Yes, Card Sizes is fully responsive and tested on iOS Safari and Android Chrome.
- Can I use Card Sizes commercially?
- Yes. The output of Card Sizes belongs entirely to you, with no licensing restrictions.
- Are my files uploaded to a server when I use Card Sizes?
- Card Sizes processes everything in your browser using local APIs. Your files never leave your device.
- What browsers does Card Sizes support?
- Every modern browser released in the last three years: Chrome, Firefox, Safari, Edge, Brave, Opera.
- Is Card Sizes really free?
- Yes — Card Sizes is free for unlimited personal use, with no account required and no watermark on the output.