Convert BCD to Binary
Decode binary coded decimals to binary bits. Runs entirely in your browser, so your data never leaves your device.
0 chars · 0 lines
Output
The result appears here as you type.
How to use Convert BCD to Binary
- 1. Paste the BCD groups. Enter the binary coded decimal input as 4-bit nibbles, typically space separated like 0001 0000. Each nibble must encode a single decimal digit from 0 to 9.
- 2. Follow the two-stage decode. The tool first reads the nibbles as decimal digits (0001 0000 means the number 10), then re-encodes that number as ordinary positional binary, giving 1010. The result is usually shorter than the input.
- 3. Copy the plain binary value. Take the pure base 2 output from the result pane and use it in arithmetic, register programming or a follow-up conversion.
When to use Convert BCD to Binary
Convert BCD to Binary translates digit-per-nibble encoded values into normal positional binary. Hardware that displays or accumulates decimal digits (clocks, meters, calculators) speaks BCD, but arithmetic units and general-purpose code want true binary, and this tool converts between those two worlds in one step.
- Reading values from an RTC chip. Real-time clock ICs like the DS1307 return hours and minutes in BCD. Convert a captured register value here to confirm what time your firmware should compute from it.
- Porting legacy meter data. An old utility meter logs readings as packed BCD. Converting sample nibbles to binary tells you the actual counts before you write the bulk migration script.
- Debugging a BCD-to-binary routine. The double-dabble algorithm in reverse is easy to get subtly wrong. Generate known-correct conversions here and use them as assertions in your unit tests.
- Working digital electronics problems. Course exercises mix BCD and binary representations deliberately to test understanding. Check each intermediate answer here while learning the distinction.
Examples
Convert
Input
0001 0000
Output
1010
Larger
Input
0001 0101
Output
1111
About the Convert BCD to Binary tool
Convert BCD to Binary runs as plain JavaScript in your browser tab, with no server behind it. Decode binary coded decimals to binary bits. Whatever you put in stays on your device from start to finish.
The tool is part of EditSafely's Binary Tools section, 112 single-purpose utilities built around the same idea: open the page, get the result, keep your data to yourself.
There is nothing to configure. Provide the input and the result appears on its own. 2 worked examples further down the page show exactly what the tool produces for real inputs.
That local-first design has practical benefits beyond privacy. The tool keeps working on a flaky connection once the page has loaded, results are instant because nothing round-trips to a server, and it is safe to use with confidential material.
Frequently asked questions
Does Convert BCD to Binary cost anything?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Is it safe to paste sensitive or confidential data?
No data leaves your device. The whole tool is JavaScript that runs inside your browser tab, so there is no upload, no server-side processing and no log of what you did. If you disconnect from the internet after the page loads, it keeps working.
How much text can I process at once?
There is no fixed limit. Because the work happens on your own device rather than on a shared server, the practical ceiling is your machine's memory, which comfortably handles inputs far larger than typical online tools allow.
Do I need to sign up or install anything?
Nothing to install and no account needed. Open the page in any up-to-date browser, including on a phone or tablet, and the tool is ready.
How do I use the result?
The output panel has a one-click copy button, and you can keep refining the input while you work; the result updates in place as you type.