BCD to Decimal Converter

About This Tool

This tool converts a sequence of 4-bit BCD nibbles into a decimal number. Users provide a string of nibble groups (for example, 0100 0001 0011). Each nibble must represent a decimal digit 0–9 (0000–1001). The resulting decimal is the concatenation of those digits. The system validates nibble values and reports errors for invalid patterns. It supports optional spacing and batch inputs separated by semicolons. This is useful for engineers validating digit streams in digital designs, educators demonstrating BCD concepts, and QA teams documenting conversion behavior. The tool emphasizes exact BCD semantics and deterministic results, with clear error signaling when inputs do not conform to standard BCD encoding.
In batch mode, multiple BCD sequences yield corresponding decimal outputs in a single pass. The core value is reducing manual computation, enabling faster verification, testing, and teaching exercises.
Overall, it provides precise, repeatable conversions aligned with common BCD standards, addressing workloads in hardware design, embedded systems, and digital electronics education.

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