Hex to Decimal Converter
0x表記から10進数への基数展開計算
How Hex to Decimal Conversion Works
Powers of 16 and Hex Weight Chart
Positional values of base-16 digit places and common boundary quantities.
| Power of 16 | Decimal Equivalent | Hex Form | Description | Action |
|---|---|---|---|---|
| 16⁰ | 1 | 0x1 | Ones Place | |
| 16¹ | 16 | 0x10 | Sixteens Place | |
| 16² | 256 | 0x100 | Byte Boundary (256) | |
| 16³ | 4,096 | 0x1000 | Four Kilobytes (4K) | |
| 16⁴ | 65,536 | 0x10000 | 16-bit Boundary (64K) | |
| 16⁵ | 1,048,576 | 0x100000 | One Megabyte (1MB) | |
| 16⁶ | 16,777,216 | 0x1000000 | 24-bit TrueColor (16M) | |
| 16⁷ | 268,435,456 | 0x10000000 | 256 Megabytes |
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Frequently Asked Questions
Everything you need to know about decimal conversions, accuracy, and formulas.
01How do you convert hex to decimal?▼
To convert hex (Base-16) to decimal (Base-10): multiply each hexadecimal digit by 16 raised to the power of its position index (starting at 0 for the rightmost integer digit). Convert letter values (A=10, B=11, C=12, D=13, E=14, F=15), then sum all positional products together.
02What values do letters A through F represent in hex?▼
In hexadecimal notation: A = 10, B = 11, C = 12, D = 13, E = 14, and F = 15. The system uses 16 unique digits (0 through 9 followed by A through F).