What does this tool do?
| Direct answer | Converts a binary (base-2) integer to its decimal value. |
| Key fact | Each binary digit is one bit; position values double from right to left (1, 2, 4, 8…). |
| Processing | Runs locally in your browser; no data is sent to a server. |
How to use
- Type a binary number like 1010.
- Click Convert.
- See the decimal value.
Example
Input
1010
Output
10
Who is this for?
This tool was built for people who need a fast answer in the browser — no install, no account, no data leaving the device.
Programmers working with low-level data, computer science students, and electronics hobbyists reading registers — anyone tired of converting number bases by hand.
Frequently asked questions
What is 1010 in decimal?
10 — 8 + 2.
Are digits other than 0/1 allowed?
No, they make the input invalid.
How large can input be?
Up to 53 bits of integer precision.