Find n-th Champernowne Digit
Calculate the n-th digit of the constant. Runs entirely in your browser, so your data never leaves your device.
Output
The result appears here as you type.
How to use Find n-th Champernowne Digit
- 1. Enter the digit position. Type a value into Digit position (after the decimal point) to specify which digit of Champernowne's constant, 0.123456789101112 and so on, you want returned.
- 2. Read the digit. The tool constructs the constant by concatenating the positive integers in order and returns the single digit sitting at your requested position.
- 3. Copy the digit. Copy the returned digit into your answer, proof or trivia sheet, or change the position and read the next one immediately.
When to use Find n-th Champernowne Digit
Find n-th Champernowne Digit returns the digit at a chosen position in Champernowne's constant, the number formed by writing 1, 2, 3 and so on in a row after the decimal point. Use it for number theory exploration or trivia.
- Answering a number theory puzzle. A recreational math problem asks for the digit at a specific position in Champernowne's constant, and entering the position directly returns the verified answer.
- Exploring a normal number's structure. Champernowne's constant is a known example of a normal number, and checking digits at scattered positions is a way to build intuition about what that property means.
- Verifying a constant-generation script. You wrote code that builds Champernowne's constant by concatenating integers and want an independent check that a digit at a given position matches your program's output.
- Preparing a math trivia question. You are writing a trivia set involving unusual constants and need a confirmed digit at a specific position in Champernowne's constant for the answer key.
Examples
The 12th decimal of 0.123456789101112…
Output
1
About the Find n-th Champernowne Digit tool
Find n-th Champernowne Digit does its work locally, right in the browser. Calculate the n-th digit of the constant. There is no upload step, no queue and no account, and your data never travels over the network.
It belongs to the Math Tools collection on EditSafely, a set of 234 small, focused Math utilities that share the same instant, private workspace.
You can shape the output with the Digit position (after the decimal point) setting, and the result refreshes the moment you change it. A worked example further down the page shows exactly what the tool produces for a real input.
Running locally also makes the tool fast and dependable: results appear as you type or drop a file, there is no server outage that can take it down mid-task, and confidential data can be processed without a second thought.
Frequently asked questions
Does Find n-th Champernowne Digit cost anything?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Does the generator send anything to a server?
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 do I get a different result?
Run the generator again. Each run is computed fresh on your device, and any options you change are applied to the next result immediately.
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.