FastOS Tools
FastOS Tools

基数変換器

異なる基数(バイナリ、8進数、10進数、16進数)間で数値を変換します。高速で正確。

数値基数変換器

機能紹介

The Base Converter tool converts numbers between different bases such as binary, octal, decimal, and hexadecimal. It is handy for learning number systems, debugging low‑level code, and working with IDs or bitmasks.

このツールを使うタイミング

Use this tool whenever you need to see how a value looks in another base: translating between human‑readable numbers and binary flags, or checking conversions used in code.

使い方

1

Enter the source number

Type or paste a number in its current base, such as decimal or hex.

2

Select source and target bases

Choose the base of the input value and the base you want to convert to (2, 8, 10, 16, etc.).

3

Convert the value

Click convert to instantly see the representation of the same value in the target base.

使用例

Converting error codes

Turn a hexadecimal error code from logs into decimal to compare it with documentation or API references.

よくある質問

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