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BCD ↔ Integer Converter

Convert between Binary Coded Decimal (BCD) hex and integer values — essential for ISO 8583 length indicators and EMV amount fields

🔢 Conversion

Enter a non-negative integer to convert to packed BCD hex.

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📖 About This Tool

What is the BCD ↔ Integer Converter?

The BCD Converter translates between Binary Coded Decimal and integer values. BCD encoding is used in ISO 8583 messages for numeric fields like amounts, where each decimal digit is stored as a 4-bit nibble.

🛠️ How to Use
  1. Select the conversion direction.
  2. Enter your BCD hex or integer value.
  3. View the converted result.
❓ FAQ

Where is BCD used in payments?

BCD encoding is used in ISO 8583 for amount fields, in EMV for numeric tag values, and in magnetic stripe service codes. Mastercard and Discover use BCD for variable-length field indicators.