QR Code Error Correction & Capacity Calculator
Calculate maximum character payload capacity and damage recovery percentage across L, M, Q, H QR levels.
- 100% free
- Private in browser
- No signup
- No watermarks
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About QR Code Error Correction & Capacity Calculator
Calculate maximum character payload capacity and damage recovery percentage across L, M, Q, H QR levels. Enter QR Matrix Version and Error Correction and the tool works out Damage Recovery Capacity and Approximate Alphanumeric Capacity straight away. Everything runs in your browser, so your data never leaves your device.
How to use QR Code Error Correction & Capacity Calculator
- Enter QR Matrix Version and Error Correction.
- Change any value to see the result update instantly.
- Read Damage Recovery Capacity and Approximate Alphanumeric Capacity in the results panel — copy or download what you need.
Key features
- Shows Damage Recovery Capacity (%)
- Shows Approximate Alphanumeric Capacity
- 2 adjustable inputs, results update as you type
- No signup, no limits
- Runs entirely in your browser — nothing is uploaded
Frequently asked questions
- Is this calculation free and private?
- Yes, 100% of calculations execute locally in your web browser. No inputs or personal data are stored or transmitted.
- What does the QR Code Error Correction & Capacity Calculator give me?
- It works out Damage Recovery Capacity and Approximate Alphanumeric Capacity, updating live as you change the inputs.
- What do I need to enter?
- Just QR Matrix Version and Error Correction. Every field has a sensible default you can start from.
- Is my data uploaded anywhere?
- No. The calculation runs in your browser with JavaScript — nothing you type is sent to a server or stored.
- Does it work on a phone?
- Yes. The layout adapts to small screens and needs no app or signup.
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