Hexadecimal to Decimal Converter
Convert hexadecimal (0x / Base-16) to decimal (Base-10) with positional powers of 16, signed 2's complement values, and color previews.
How Hexadecimal to Decimal Conversion Works
Powers of 16 and Hexadecimal Weight Chart
Positional values of base-16 digit places and common boundary quantities.
| Power of 16 | Decimal Equivalent | Hexadecimal 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 |
home.relatedTools
Convert raw binary bitstreams into Decimal, Hexadecimal nibbles, and Octal UNIX permissions with step-by-step proofs.
tools.fractionCalc
Add, subtract, multiply, divide & simplify fractions
tools.fractionToDecimal
Convert fractions & mixed numbers to exact decimals & repeating cycles
tools.decimalToFraction
Mixed & improper fractions with GCD steps
tools.decimalToHex
Base-16 hex with byte spacing & RGB preview
tools.binaryToDecimal
Convert base-2 bits to base-10 decimal & fractions
tools.binaryToHex
Convert 4-bit nibbles to Base-16 hexadecimal (0x)
tools.binaryToOctal
Convert 3-bit triplets to Base-8 octal & UNIX permissions
tools.decimalToBinary
Base-2 bits & IEEE-754 32-bit float inspection
tools.decimalToPercent
Percentage, basis points (bps) & gauge
tools.decimalToInches
1/16″ to 1/64″ fractional inches & metric ruler
tools.decimalToMinutes
HH:MM:SS timecodes & payroll work logs
Frequently Asked Questions
Everything you need to know about decimal conversions, accuracy, and formulas.
01How do you convert hexadecimal to decimal?▼
To convert hexadecimal (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. For example: 0x2E = (2 × 16¹) + (14 × 16⁰) = 32 + 14 = 46.
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).
03How do you convert fractional hexadecimal numbers to decimal?▼
For digits after the radix point, multiply each hex digit by negative powers of 16 (16⁻¹ = 1/16 = 0.0625, 16⁻² = 1/256 = 0.00390625, etc.). For example, 0x0.8 = 8 × (1/16) = 0.5.